Category: 31570-04-4

Hu, Mingjun published the artcileA sustainable high-viscosity modified asphalt modified with multiple anti-aging agents: Micro-chemical analysis and macro-rheological characterization, Application of Tris(2,4-di-tert-butylphenyl) phosphite, the publication is Construction and Building Materials (2022), 127701, database is CAplus.

This study aimed to use aging inhibition technol. to actively improve the environmental aging resistance, thus achieving the sustainable and long-life application of high-viscosity modified asphalt (HVMA). The sustainable HVMAs with different anti-aging agents was prepared, and the long-term environmental aging effect, including solar radiation, heat, and moisture, was simulated using the accelerated environmental aging tester. Then, the chem. and mol. composition of sustainable HVMAs were investigated using Fourier transform IR spectroscopy test, XPS test, and gel permeation chromatog. test. Afterwards, the nano-indentation test was used to study the nanomech. property of sustainable HVMAs. Finally, the dynamic shear rheol. test and linear amplitude sweep test were applied to evaluate the aging resistance, crack resistance, and fatigue resistance of sustainable HVMAs. The results show that environmental aging leads to the rapid oxidation of asphalt mols. and substantial degradation of polymer mols. in HVMA, as evidenced by the transformation of carbon elements from C-C/C-H bonds to C-O/C=O bonds and sulfur elements from C-S-C bonds to S=O/O=S=O bonds. A single anti-aging agent has a little aging inhibition effect, while the compounding of multiple anti-aging agents has a synergistic anti-aging enhancement effect. The combination of UV absorbers and UV blocking agents can absorb/reflect some of the UV rays and delay the UV aging process. However, they cannot effectively prevent the binding of UV-excited reactive radicals with oxygen. In contrast, incorporating antioxidants can allow hydrogen atoms to combine with UV-excited reactive radicals and prevent further oxidation of asphalt mols. The compound incorporation of UV absorbers, UV blocking agents, and antioxidants can improve the rheol. property, crack resistance, and fatigue resistance of aged HVMA, thus effectively promoting the sustainable and long-life application of HVMA.

Construction and Building Materials published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, Application of Tris(2,4-di-tert-butylphenyl) phosphite.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Yu, Kaifeng published the artcileInvestigation of the synergy influence of KSiCB and POE-g-MAH on mechanical properties of basalt fiber-reinforced PA6 composites, Application of Tris(2,4-di-tert-butylphenyl) phosphite, the publication is Polymer Composites (2021), 42(2), 739-752, database is CAplus.

Silicon carbon black (SiCB), a kind of biomass carbon material, is a kind of pyrolysis ash prepared by anoxic pyrolysis of rice husk. When filled as an inorganic reinforcement in the composite material basalt fiber (BF) reinforced polyamide 6 (PA6), it has synergetic effect with the POE-g-MAH elastomer. Differential scanning calorimetry anal. shows that KSiCB plays a role of heterogeneous nucleation in the composite material, accelerates the nucleation and crystallization speed of PA6, and can increase the strength and rigidity of the composite material. Scanning electron microscope observation of the fracture surface of the composite material shows that the addition of KSiCB can effectively “pin” and inhibit crack propagation. When the content of KSiCB is 2.5 phr, the tensile strength of the composite material KSiCB/POE-g-MAH/PA6(BF) reaches a maximum of 125.194 MPa, the tensile modulus is 2791.257 MPa, the bending strength reaches 192.034 MPa, and the impact toughness reaches 23.42 kJ/m².

Polymer Composites published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C4H6O3, Application of Tris(2,4-di-tert-butylphenyl) phosphite.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Draper, William M. published the artcileOrganic Chemical Contaminants in Water System Infrastructure Following Wildfire, Product Details of C42H63O3P, the publication is ACS ES&T Water (2022), 2(2), 357-366, database is CAplus and MEDLINE.

Wildfires have destroyed multiple residential communities in California in recent years. After fires in 2017 and 2018, high concentrations of benzene and other volatile organic compounds (VOCs) were found in public drinking water systems in fire-affected areas. The sources of the contamination and appropriate remediation have been urgent matter of investigation. This study characterizes target and nontarget VOCs and semivolatile organic compounds in water from a highly contaminated service line after the 2018 Camp Fire (Paradise, CA). Ninety-five organic compounds were identified or tentatively identified in the service line. Laboratory combustion experiments with drinking water pipes made of polyvinyl chloride (PVC), cross-linked polyethylene, and high-d. polyethylene and a review of the literature were used to evaluate potential sources of the detected chems. Among the service line contaminants were 32 compounds associated with PVC pyrolysis and 28 organic compounds also associated with the pyrolysis of polyethylene. The service line sample also contained 55 compounds associated with uncontrolled burning of biomass and waste materials. The findings support hypotheses that wildfires can contaminate drinking water systems both by thermal damage to plastic pipes and intrusion of smoke. Residual chlorine disinfectants in the water system modify the contaminant distribution observed

ACS ES&T Water published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, Product Details of C42H63O3P.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Feng, Haisheng published the artcileCross-linked charring strategy for mitigating hazards of smoke and heat of aluminum diethylphosphonate/polyamide 6 by caged octaphenyl polyhedral oligomeric silsesquioxanes, Application In Synthesis of 31570-04-4, the publication is Journal of Hazardous Materials (2022), 424(Part_C), 127420, database is CAplus and MEDLINE.

Aluminum diethylphosphonate (ADP) is a highly efficient phosphorus-based flame retardant, widely used in polyamide 6 (PA6). However, ADP/PA6 releases large amounts of heat and smoke under high heat flux, which commonly means serious hazards to life and property. Octaphenyl polyhedral oligomeric silsesquioxanes (OPS) is an organic-inorganic hybrid silicon compound, playing flame retardant role in condensed phase. In this work, combustion behaviors of OPS/ADP/PA6 were investigated by limited oxygen index (LOI), UL94 and cone calorimeter (CONE) tests. The LOI and UL94 rating results did not change obviously, while the CONE data and smoke d. data showed the synergistic effect of OPS and ADP in PA6. For 2.5%OPS/7.5%ADP/PA6, the peak values of heat, smoke and CO release rate (pk-HRR, pk-RSR, Ds, max with/without pilot flame and pk-COP) decreased by 60.2%, 82.1%, 45.9%/38.3% and 80.4% resp., compared with 10%ADP/PA6. Moreover, 2.5%OPS/7.5%ADP/PA6 produced 337.5% more residue than 10%ADP/PA6. TGA, TG-IR, SEM-EDS, XPS and py-GC/MS were used to further explore the synergistic mechanism of OPS and ADP. It was verified that the cross-linked charring strategy apparently has weakened the hazards of smoke and heat of PA6. This work proposed a possible tech. approach to solve both fire risk and heat/smoke hazards of PA6.

Journal of Hazardous Materials published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, Application In Synthesis of 31570-04-4.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Melkar, Ashwith published the artcileEffect of antiblock and slip additives on the properties of tubular quenched polypropylene film, SDS of cas: 31570-04-4, the publication is Journal of Polymer Engineering (2022), 42(2), 100-108, database is CAplus.

In the present investigation, silica and talc were used as antiblock additives with slip additive to investigate their effects on tubular quenched polypropylene (TQPP) film properties. Polypropylene (PP) powder was compounded with additives in twin-screw extruder and subsequently processed through TQPP machine to prepare the films. Tear and tensile properties [in machine direction (MD) and transverse direction (TD)] and surface properties of the produced TQPP films were investigated in terms of optics and coefficient of friction (CoF). The effect of conditioning time on CoF was also studied. Addition of slip agent alone to PP did not show any significant change in tear strength, CoF and tensile properties, whereas CoF reduced drastically by adding both slip and antiblock agents in combination. Reduction in CoF values were found to be more pronounced in the presence of silica-based antiblock compared to talc-based antiblock. Film surface morphol. was further examined by field-emission SEM. The tear strength and the gloss of TQPP film decreased slightly in presence of only antiblock agents, but the tensile strength was found to increase. It was also found that tensile properties of TQPP films were superior in silica-based formulation, whereas tear strength was better in talc-based formulation in MD and TD.

Journal of Polymer Engineering published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, SDS of cas: 31570-04-4.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Petrus, Josef published the artcileSolid-state hydroxylation of polypropylene, Recommanded Product: Tris(2,4-di-tert-butylphenyl) phosphite, the publication is Materials Today Communications (2022), 103428, database is CAplus.

The solid-state hydroxylation of polypropylene (PP) in water solution was investigated as a simple and attractive way for the surface hydroxylation of PP. The functionalization was initiated by potassium persulfate (K₂S₂O₈) under inert atm. The effect of various reaction parameters and surfactants on the concentration of -OH group bonded on PP backbone ([OH]_PP) and the extent of collateral reactions was discussed. The increase of [OH]_PP with the increase of initial concentration of K₂S₂O₈ ([K₂S₂O₈]₀) was proved by Fourier transform IR spectroscopy (FTIR) and XPS. β-scission and oxidative degradation of PP was detected with respect to the change of rheol. behavior, differential scanning calorimetry (DSC) and FTIR. On the other hand, inverse collateral reaction leading to the increase of molar mass were evidenced at prolonged reaction period. Surface hydroxylation was detected mainly in the amorphous phase, however at prolonged reaction period the reaction occurred even in the crystalline phase.

Materials Today Communications published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, Recommanded Product: Tris(2,4-di-tert-butylphenyl) phosphite.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Janchai, Khunanya published the artcileCrystallization behavior of isotactic polypropylene containing a fibrous nucleating agent in a flow field, Name: Tris(2,4-di-tert-butylphenyl) phosphite, the publication is Polymer Journal (Tokyo, Japan) (2022), 54(3), 367-375, database is CAplus.

The crystallization behavior of isotactic polypropylene containing a fibrous nucleating agent in a flow field was investigated using a polarized optical microscope equipped with a parallel-plate shear device. The addition of the fibrous nucleating agent greatly enhanced the crystallization rate, although isotactic polypropylene crystallization without the nucleating agent was enhanced after exposure to shear flow at a high shear rate. The sample with the nucleating agent demonstrated high mol. orientation to the flow direction after shear flow, even at a low shear rate. This was attributed to the formation of a pseudo shish-kebab structure, in which the fibrous nucleating agent acts as the shish. Moreover, the high level of mol. orientation without spherulitic morphol. was responsible for the reduced light scattering, which resulted in good transparency.

Polymer Journal (Tokyo, Japan) published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, Name: Tris(2,4-di-tert-butylphenyl) phosphite.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Jaisingh, Aanchal published the artcileTuning Melt Strength and Processability of Polyolefins by Addition of a Functionalized Additive Designed via the TEMPO-Driven Thiol-ene Reaction, Application of Tris(2,4-di-tert-butylphenyl) phosphite, the publication is Industrial & Engineering Chemistry Research (2021), 60(28), 10155-10166, database is CAplus.

Thiol-ene chem. with TEMPO as an initiator has been utilized to synthesize a first-generation dendrimer having eight peripheral hydroxyl groups. Long chain branched impact copolymer polypropylene (ICP) and linear low-d. polyethylene (LLDPE) were prepared by a postreactor modification process by a melt-grafting dendrimer onto a polyolefin chain using peroxide and maleic anhydride as a co-agent. Long chain branching in ICP controlled the chain scission initiated by peroxide by increasing entanglement, while for LLDPE, it controlled the excessive crosslinking because of peroxide. Neat and modified ICP and LLDPE samples were analyzed by FT-IR, TGA, DSC, HT-GPC, MFI, and parallel-plate rheometry as well as for their melt strength. The presence of long chain branching was mainly confirmed by time-temperature superposition (TTS) anal. obtained using a parallel-plate rheometer. In comparison to neat polymers, modified ICP and LLDPE samples showed higher values of Arrhenius flow activation energy. In the case of ICP, higher processability was observed for a dendrimer-grafted sample, while modified LLDPE samples exhibited higher melt strength as compared to neat polymers. Van Gurp-Palmen plots showed a decrease in phase angle as a function of angular frequency for modified ICP and LLDPE samples, which also confirmed their thermorheol. complex behavior.

Industrial & Engineering Chemistry Research published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, Application of Tris(2,4-di-tert-butylphenyl) phosphite.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zhang, Xixiang published the artcileEffect of the lanthanum and cerium phenylphosphonates on the crystallization and mechanical properties of isotactic polypropylene, Recommanded Product: Tris(2,4-di-tert-butylphenyl) phosphite, the publication is Journal of Polymer Research (2021), 28(4), 124, database is CAplus.

In this article, the lanthanum phenylphosphonates (LaPPA2) and cerium phenylphosphonates (CePPA2) were synthesized and the effect on the crystallization conducts and mech. performances of isotactic polypropylene (iPP) were studied. After adding 0.05wt.% of LaPPA2 and CePPA2, the crystallization temperature enhanced appreciably. The polarized optical microscopy (POM) imagines indicated that the LaPPA2 and CePPA2 could accelerate the crystallization speed and reduce the spherulites sizes significantly. The presence of LaPPA2 and CePPA2 decreased appreciably the non-isothermal crystallization kinetics parameter F(T). Meanwhile, the nucleation efficiency of LaPPA2 and CePPA2 was similar to industrial standard NAs NA-11, HPN20E and HPN68L. In addition, the mech. properties of iPP have been improved by adding LaPPA2 and CePPA2. According to the investigation of nucleated iPP viscoelasticity, it can be confirmed that the CH/π interplay between iPP and the aromatic groups of LaPPA2 and CePPA2 promoted the attachment of iPP helix and following nucleation.

Journal of Polymer Research published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C15H14O, Recommanded Product: Tris(2,4-di-tert-butylphenyl) phosphite.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Li, Yu published the artcileThe chain microstructure and condensed structure of polyethylene resin used for Biaxially stretched film, Application In Synthesis of 31570-04-4, the publication is Journal of Applied Polymer Science (2021), 138(2), 49652, database is CAplus.

To explore the desirable chain structure and condensed structure of polyethylene used for biaxial stretching, the blends of two polyethylenes (PE1 and PE2) with different mol. weight and branch distribution were investigated. Their condensed structure including relaxation and crystallization behavior was studied by rheol., dynamic mech. anal. (DMA), and non-isothermal crystallization kinetics. And the chain microstructure was characterized by preparative temperature rising elution fractionation (P-TREF), and successive self-nucleation and annealing (SSA). It was demonstrated that the structural variables were not changing monotonically with the increment of the PE1 content. The longest relaxation time, lowest and less varied crystallization rate always appeared when the blend contained 15 wt% of PE1. This excellent structure was owing to the formation of more branches on the short chains, resulting in the uniform distribution of lamellae size and thus showing the widest biaxial stretchable temperature range (i.e., 8°C).

Journal of Applied Polymer Science published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, Application In Synthesis of 31570-04-4.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics