Category: 6683-19-8

Morphological and structural properties of isotactic polypropylene filled with nano-zinc oxide as investigated by dynamic rheology, creep and recovery in shear was written by Liu, Jingru;Liang, Hongwei. And the article was included in Polymer Bulletin (Heidelberg, Germany) in 2022.Computed Properties of C73H108O12 This article mentions the following:

Morphol. and structural properties of nano-zinc oxide/isotactic polypropylene (nano-ZnO/iPP) composites with different nano-ZnO concentrations before and after compatibilization were investigated by SEM, dynamic rheol., shear creep and creep-recovery measurements. The complex viscosity and storage modulus of the composite melts first decrease and then increase with increasing nano-ZnO loading. The pseudo-solid-like behavior appearing in high-loaded composites could be attributed to the formation of the filler percolation network resulting from particle-particle interactions. The incorporating of maleic anhydride/styrene-grafted random copolypropylene (MPP) brings about the reduction of the number of big agglomerates of nano-ZnO, followed by the decrease in modulus and viscosity. Large nano-ZnO agglomerates or more complete percolation network formation enhances the creep resistance of iPP. This finding is explained by the existence of long relaxation time in the high-loaded system assigned to the relaxation of the iPP chains attached to the particle surface. Moreover, MPP has a pronounced influence on the shear creep and recovery behavior of the composites. Weighted relaxation spectra calculated from the dynamic frequency sweep together with shear creep and recovery curves quantify these assumptions. Dynamic rheol. and shear creep and creep-recovery measurements are sensitive tools to get insights into the dispersion state of nanoparticles in the polymer composites, as well as the interactions (i.e., particle-polymer interaction, particle-particle interaction) in such systems. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Computed Properties of C73H108O12).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Computed Properties of C73H108O12

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Thermoreversible Cross-Linked Rubber Prepared via Melt Blending and Its Nanocomposites was written by Cantamessa, Francesco;Damonte, Giacomo;Monticelli, Orietta;Arrigo, Rossella;Fina, Alberto. And the article was included in ACS Applied Polymer Materials in 2022.Name: 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) This article mentions the following:

A covalent adaptable network based on the thermoreversible crosslinking of an ethylene-propylene rubber through Diels-Alder (DA) reaction was prepared for the first time through melt blending as an environmental-friendly alternative to traditional synthesis in organic solvents. Functionalization of the rubber with furan groups was performed in a melt blender and subsequently mixed with different amounts of bismaleimide in a microextruder. Crosslinking was confirmed by FT-IR spectroscopy and insolubility at room temperature, while its thermoreversible character was confirmed by a solubility test at 110鎺矯 and by remolding via hot-pressing. Mech. and thermomech. properties of the obtained rubbers showed potential to compete with conventionally crosslinked elastomers, with stiffness in the range 1-1.7 MPa and strain at break in the range 200-500%, while allowing recycling via a simple melt processing step. Nanocomposites based on the thermoreversible rubber were prepared with reduced graphene oxide (rGO), showing significantly increasing stiffness up to ca. 8 MPa, ~2-fold increased strength, and thermal conductivity up to ~0.5 W/(m K). Results in this paper may open for industrially viable and sustainable applications of thermoreversible elastomers. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Name: 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate)).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Name: 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

High density polyethylene/wood flour composite: optimization of processing temperature, processing time and coupling agent concentration was written by Ranjbarha, Zahra;Aberoomand-Azar, Parviz;Mokhtari-Aliabad, Javad;Mirmohammadi, Seyed Amin;Saber-Tehrani, Mohammad. And the article was included in Polymers and Polymer Composites in 2021.Application of 6683-19-8 This article mentions the following:

Wood plastic composites (WPCs) consisting of high d. polyethylene (HDPE) reinforced with high-loading (55 wt%) of wood flour (WF) were fabricated with melt-blending technique. In this compounding method, processing parameters such as different mixing temperatures (of 165, 180 and 195鎺?, mixing times (of 5, 10 and 15 min) and coupling agent contents (of 2 and 4 wt%) were evaluated. Prepared specimens were analyzed with tensile, Izod, shore D, DMTA, short-term creep, DSC, TGA, water absorption and water contact angle characterizations. Results revealed that mixing temperature of 180鎺矯, mixing time of 10 min and coupling agent concentration of 4 wt% were found as the best processing conditions. The mentioned conditions provided enhanced dispersion of WF particles within the HDPE matrix, due to optimum viscosity of the polymer melt and effective residence time of compound in the mixer, and beside them efficient interfacial adhesion between WF and polymer matrix. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Application of 6683-19-8).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Application of 6683-19-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Thermoplastic polyurethane/butylene-styrene triblock copolymer blends: an alternative to tune wear behavior was written by Agnol, Lucas Dall;Toso, Giulio Tremea;Dias, Fernanda Trindade Gonzalez;Soares, Marcio Ronaldo Farias;Bianchi, Otavio. And the article was included in Polymer Bulletin (Heidelberg, Germany) in 2022.Application of 6683-19-8 This article mentions the following:

This work presents an interesting alternative for improving thermoplastic polyurethane’s (TPUs) tribol. properties by incorporating styrene-ethylene/butylene-styrene triblock copolymer (SEBS) via melt blending. Two TPUs with different molar masses, two compatibilizers SEBS-g-MA (C1) and SEBS-b-TPU (C2) and paraffinic oil were used in the formulated blends. The raw materials’ effect on the morphol., rheol., phys.-mech. and tribol. performance of TPU/SEBS blends was monitored. The phase morphol. achieved depended on the addition of mineral oil and compatibilizer agent type. The rheol. anal. showed a pseudo-liquid viscous behavior for all samples. However, this behavior was related to the compatibilizer type and molar mass of the TPU. No significant changes were observed between the compatibilizers C1 and C2 concerning the physicomech. properties. The fact that mineral oil is preferentially contained in the SEBS phase is the fundamental point to explain the blends phase morphol. and their rheol. and phys. behaviors. The swollen state SEBS modifies the TPU’s performance. It also allows tuning properties such as abrasion and increasing the friction coefficient, enabling promising applications for these thermoplastic elastomers blends. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Application of 6683-19-8).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Application of 6683-19-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Hydrophobically modified phosphogypsum and its application in polypropylene composites was written by Liu, Hao;Nie, Chenchen;Li, Hongping;Xie, Guiming;Cao, Jianxin. And the article was included in Construction and Building Materials in 2022.Recommanded Product: 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) This article mentions the following:

Phosphogypsum (PG) is a solid waste residue in the production of phosphoric acid by the wet process, and many deposits of this waste pollute the environment. Anhydrous Phosphogypsum (APG) was prepared by pretreatment of PG, after which its surface was hydroxylated by NaOH solution The surface hydrophobic modification of APG was achieved by grafting 3-(methacryloxy)propyltrimethoxysilane (KH570), alkoxytris(dioctyl pyrophosphate acyloxy) titanate (TCA-L38), and stearic acid (SA), resp., on hydroxylated APG surfaces. The chem. surface structure and properties of the APG materials were determined, and the mechanism of the hydrophobic surface modification was discussed. Finally, the modified APG was used as polypropylene (PP) filler to prepare PP composites by melt blending. The results showed that the hydroxyl content on the surface of APG was significantly increased after hydroxylation, which significantly increased the grafting rate of KH570, SA, and TCA-L38 on the surface of APG. KH570, SA, and TCA-L38 could react with the hydroxyl group of APG, which were closely adsorbed on the surface of APG by chem. adsorption. The water contact angles of APG-OH-KH570, APG-OH-SA, and APG-OH-TCA were 80.52鎺? 124.99鎺? and 123.77鎺? resp. The surface hydroxylation and hydrophobic modification of APG significantly improved the compatibility and interfacial interaction between APG and PP. The mech. properties APG-OH-KH570/PP, APG-OH-TCA/PP, and APG-OH-SA/PP composites were better than those of pure PP. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Recommanded Product: 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate)).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Recommanded Product: 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Investigation of the crystallization and mechanical properties of wood fiber/polypropylene composites nucleated by a self-assembly 灏?nucleating agent was written by Lv, Chao;Luo, Shupin;Guo, Wenjing. And the article was included in Polymer Bulletin (Heidelberg, Germany).Recommanded Product: 6683-19-8 This article mentions the following:

Isotactic polypropylene (PP) is a widely used and versatile commodity polymer with several polymorphs (浼? 灏? 绾?. 灏?form isotactic PP attracted more interest due to its improved mech. properties in comparison with the more common 浼?form. Addition of 灏?nucleating agents is an easy approach to induce 灏?form in isotactic PP. Few studies paid attention to the use of 灏?PP as the matrix of natural fiber/PP composites. In this study, isotactic PP was nucleated by a 灏?nucleating agent N, N閳?dicyclohexylterephthalamide (TMB-5) and then melt compounded with poplar wood fiber (WF) to prepare WF/PP/TMB composites. The influence of adding different contents (0.05, 0.1, 0.15, 0.3 and 0.5%) of TMB-5 on the crystalline morphol., melting and crystallization behavior, mech. properties and heating deflection temperature (HDT) of WF/PP composites was investigated. It was found that TMB-5 accelerated the crystal nucleation and induced 灏?crystal growth due to TMB-5 provided the nucleation site. The crystals size of WF/PP/TMB composite decreased and crystals boundaries became blurred with the increasing contents of TMB-5. The TMB-5 contents also affected the self-assembly morphol. of TMB-5 which further influenced the morphol. of crystals. The relative content of 灏?crystal (K_{灏?/sub>) reached maximum value of 65.3% when the content of TMB-5 was 0.3%. But WF decreased K灏?of PP/TMB under same content of TMB-5 which demonstrated the interference of WF with the generation of 灏?crystal. For mech. properties, impact strength of WF/PP/TMB composite reached maximum value of 9.6 kJ璺痬^-2 when adding 0.05% TMB-5. The TMB-5 contents had an insignificant effect on the flexural strength and modulus of WF/PP/TMB composite. Compressive strength of WF/PP/0.3%TMB composite reached maximum value of 64.4 MPa, which increased by 25.5% compared to WF/PP composite. Moreover, TMB-5 could improve the HDT of WF/PP composite as well. These results revealed that the addition of 灏?nucleating agent TMB-5 is an effective and practical method to improve crystallization rate and mech. properties of WF/isotactic PP composites. WF/PP/TMB composite can be used in construction decoration, catering, automobile applications. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Recommanded Product: 6683-19-8).}

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Recommanded Product: 6683-19-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

High-temperature stabilization of polypropylene using hindered phenol-thioester stabilizer combinations, Part 1: Optimization and efficacy via nondust blends was written by Allen, Norman S.;Jones, Andrew P.;Liauw, Christopher M.;Edge, Michele;Keck-Antoine, Klaus;Yeo, Joeng-Ho. And the article was included in Journal of Vinyl and Additive Technology in 2021.Synthetic Route of C73H108O12 This article mentions the following:

The thermal degradation of unstabilized polypropylene has been investigated under long-term processing (twin extruder) and thermal aging at 150 鎺矯, with additive concentration studies on combinations of an established hindered phenolic antioxidant (pentaerythritol tetrakis (3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate) [S1010]) and two popular thioesters (distearyl-3,3閳?thiodipropionate [DSTDP] and didodecyl-3,3閳?thiodipropionate [DLTDP]) using melt flow rate, carbonyl index and powder diffuse reflectance IR Fourier transform spectroscopy (DRIFTS) (FTIR), and differential scanning calorimetry (DSC) (oxidation induction time [OIT]) and ultimate embrittlement time (Fracture) on injection-molded test pieces. It was found that 20:80 phenol:thioester ratios provided the best long-term thermal stability (LTTS); however, this was the reverse for processing stabilization (80:20), underlining the antioxidant nature of the two stabilizers (long term vs. melt). Melt preblending of the stabilizers (to form a no-dust blend) gave rise to improved LTTS. DRIFTS FTIR indicated that there was an improvement in preblending the additives, which removed any volatile impurities. Increased additive dispersion and localized potential efficacy in the stabilization cycle is important, as well as possible improved addition of the additives to the extruder rather than fine powder. The data are discussed in relation to the long-term stabilization of polypropylene in high-temperature applications such as under the bonnet of automobiles where minimizing stabilizer losses and maximizing synergy are important. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Synthetic Route of C73H108O12).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Synthetic Route of C73H108O12

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Micro-Nanometer Particle Composition and Functional Design of Surface Nano-Structured Ammonium Polyphosphate and Its Application in Intumescent Flame-Retardant Polypropylene was written by Wu, Xiaolu;Qin, Zhaolu;Zhang, Xiang;Yu, Zhenfei;Zhang, Wenchao;Yang, Rongjie;Li, Dinghua. And the article was included in Nanomaterials in 2022.Application In Synthesis of 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) This article mentions the following:

A novel composite and functional micro-nanometer particle is designed by the hydrolysis of aluminum isopropoxide on the surface of ammonium polyphosphate (APP) to prepare surface nanostructured ammonium polyphosphate (NSAPP). NSAPP is characterized by XPS, XRF, SEM, water solubility tests, and TGA. Results indicate that nanosized aluminum hydroxide is deposited on the surface of NSAPP, which enhanced its water resistance and thermostability. Then, APP and NSAPP coupled with dipentaerythritol (DPER) is used for the flame retardant of polypropylene (PP). The limiting oxygen index value of the PP/DPER/NSAPP composite is higher than that of PP/DPER/APP. Besides, the UL 94 vertical burning test of PP/DPER/NSAPP composites can reach the V-0 rating easily. According to the study of the combustion behavior of FR-PP composites, NSAPP contributes to form a dense and multi-layered char in the combustion process. Thus, such an intumescent char with a ceramic-like, continuous, and dense structure over the PP matrix protects the underlying matrix and enhances the thermal stability of the condensed phase, thereby improving the flame retardant performance of FR-PP. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Application In Synthesis of 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate)).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Application In Synthesis of 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate)

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Investigation of the crystallization and mechanical properties of wood fiber/polypropylene composites nucleated by a self-assembly 尾-nucleating agent was written by Lv, Chao;Luo, Shupin;Guo, Wenjing. And the article was included in Polymer Bulletin (Heidelberg, Germany).Recommanded Product: 6683-19-8 This article mentions the following:

Isotactic polypropylene (PP) is a widely used and versatile commodity polymer with several polymorphs (伪, 尾, 纬). 尾-form isotactic PP attracted more interest due to its improved mech. properties in comparison with the more common 伪-form. Addition of 尾-nucleating agents is an easy approach to induce 尾-form in isotactic PP. Few studies paid attention to the use of 尾-PP as the matrix of natural fiber/PP composites. In this study, isotactic PP was nucleated by a 尾-nucleating agent N, N鈥?dicyclohexylterephthalamide (TMB-5) and then melt compounded with poplar wood fiber (WF) to prepare WF/PP/TMB composites. The influence of adding different contents (0.05, 0.1, 0.15, 0.3 and 0.5%) of TMB-5 on the crystalline morphol., melting and crystallization behavior, mech. properties and heating deflection temperature (HDT) of WF/PP composites was investigated. It was found that TMB-5 accelerated the crystal nucleation and induced 尾-crystal growth due to TMB-5 provided the nucleation site. The crystals size of WF/PP/TMB composite decreased and crystals boundaries became blurred with the increasing contents of TMB-5. The TMB-5 contents also affected the self-assembly morphol. of TMB-5 which further influenced the morphol. of crystals. The relative content of 尾-crystal (K_尾) reached maximum value of 65.3% when the content of TMB-5 was 0.3%. But WF decreased K尾 of PP/TMB under same content of TMB-5 which demonstrated the interference of WF with the generation of 尾-crystal. For mech. properties, impact strength of WF/PP/TMB composite reached maximum value of 9.6 kJ路m^-2 when adding 0.05% TMB-5. The TMB-5 contents had an insignificant effect on the flexural strength and modulus of WF/PP/TMB composite. Compressive strength of WF/PP/0.3%TMB composite reached maximum value of 64.4 MPa, which increased by 25.5% compared to WF/PP composite. Moreover, TMB-5 could improve the HDT of WF/PP composite as well. These results revealed that the addition of 尾-nucleating agent TMB-5 is an effective and practical method to improve crystallization rate and mech. properties of WF/isotactic PP composites. WF/PP/TMB composite can be used in construction decoration, catering, automobile applications. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Recommanded Product: 6683-19-8).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Recommanded Product: 6683-19-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

High-temperature stabilization of polypropylene using hindered phenol-thioester stabilizer combinations, Part 1: Optimization and efficacy via nondust blends was written by Allen, Norman S.;Jones, Andrew P.;Liauw, Christopher M.;Edge, Michele;Keck-Antoine, Klaus;Yeo, Joeng-Ho. And the article was included in Journal of Vinyl and Additive Technology in 2021.Synthetic Route of C73H108O12 This article mentions the following:

The thermal degradation of unstabilized polypropylene has been investigated under long-term processing (twin extruder) and thermal aging at 150 掳C, with additive concentration studies on combinations of an established hindered phenolic antioxidant (pentaerythritol tetrakis (3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate) [S1010]) and two popular thioesters (distearyl-3,3鈥?thiodipropionate [DSTDP] and didodecyl-3,3鈥?thiodipropionate [DLTDP]) using melt flow rate, carbonyl index and powder diffuse reflectance IR Fourier transform spectroscopy (DRIFTS) (FTIR), and differential scanning calorimetry (DSC) (oxidation induction time [OIT]) and ultimate embrittlement time (Fracture) on injection-molded test pieces. It was found that 20:80 phenol:thioester ratios provided the best long-term thermal stability (LTTS); however, this was the reverse for processing stabilization (80:20), underlining the antioxidant nature of the two stabilizers (long term vs. melt). Melt preblending of the stabilizers (to form a no-dust blend) gave rise to improved LTTS. DRIFTS FTIR indicated that there was an improvement in preblending the additives, which removed any volatile impurities. Increased additive dispersion and localized potential efficacy in the stabilization cycle is important, as well as possible improved addition of the additives to the extruder rather than fine powder. The data are discussed in relation to the long-term stabilization of polypropylene in high-temperature applications such as under the bonnet of automobiles where minimizing stabilizer losses and maximizing synergy are important. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Synthetic Route of C73H108O12).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Synthetic Route of C73H108O12

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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics