2495-37-6 Archives - Page 4 of 10 - Esters-buliding-blocks

Seitzinger, Claire L. team published research in Macromolecules (Washington, DC, United States) in 2022 | 2495-37-6

2495-37-6, Benzyl methacrylate, also known as Benzyl methacrylate, is a useful research compound. Its molecular formula is C11H12O2 and its molecular weight is 176.21 g/mol. The purity is usually 95%.
Benzyl methacrylate is a chemical compound that belongs to the group of benzyl compounds. It has a copolymer structure with methyl ethyl methacrylate (MEMA) and hydroxyl groups. Benzyl methacrylate is produced by polymerization of benzyl chloride with allyl carbonate in the presence of radiation, forming a polymeric matrix. The morphology of this copolymer depends on the length of the benzyl chains and the concentration of MEMA., Recommanded Product: Benzyl methacrylate

Glycerides are fatty acid esters of glycerol; they are important in biology, being one of the main classes of lipids and comprising the bulk of animal fats and vegetable oils. 2495-37-6, formula is C11H12O2, Name is Benzyl methacrylate. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Recommanded Product: Benzyl methacrylate.

Seitzinger, Claire L.;Hall, Cecilia C.;Lodge, Timothy P. research published 《 Photoreversible Order-Disorder Transitions in Block Copolymer/Ionic Liquid Solutions》, the research content is summarized as follows. External stimuli are of interest in controlling the nanoscale morphol. in self-assembling polymer materials. While temperature is commonly used to control the state of microphase separation in block polymer solutions, light is a highly tunable, contactless method that can be spatially selective. Here, we use UV irradiation to induce order-disorder transitions (ODTs) in concentrated solutions of four poly(Me methacrylate)-b-poly(benzyl methacrylate-s-4-phenylazophenyl methacrylate) block copolymers in three imidazolium-based ionic liquids Due to a significant change in polarity in the phenylazophenyl methacrylate monomer upon UV irradiation, a bistable temperature window exists between the ODT in the dark and under UV irradiation, allowing for light-triggered ODTs. UV-irradiated small-amplitude oscillatory shear rheol. is used to locate the bistable window and then to trigger ODTs reversibly with light. The ordered states formed in the dark are determined by small-angle X-ray scattering. Three tunable factors are explored within the system: the relative lengths of the copolymer blocks, the selectivity of the solvent, and the content of the photoactive monomer. The block composition was found to mainly influence the ordered state formed by the system after microphase separation The selectivity of the solvent is the most promising method for tuning the ODT temperature, and the amount of photoactive monomer controls the width of the bistable window.

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

Saha, Debarshi team published research in Chemical Communications (Cambridge, United Kingdom) in 2022 | 2495-37-6

Electric Literature of 2495-37-6, Benzyl methacrylate, also known as Benzyl methacrylate, is a useful research compound. Its molecular formula is C11H12O2 and its molecular weight is 176.21 g/mol. The purity is usually 95%.
Benzyl methacrylate is a chemical compound that belongs to the group of benzyl compounds. It has a copolymer structure with methyl ethyl methacrylate (MEMA) and hydroxyl groups. Benzyl methacrylate is produced by polymerization of benzyl chloride with allyl carbonate in the presence of radiation, forming a polymeric matrix. The morphology of this copolymer depends on the length of the benzyl chains and the concentration of MEMA., 2495-37-6.

Saha, Debarshi;Taily, Irshad Maajid;Banerjee, Nakshatra;Banerjee, Prabal research published 《 Electricity mediated [3+2]-cycloaddition of N-sulfonylcyclopropanes with olefins via N-centered radical intermediates: access to cyclopentane analogs》, the research content is summarized as follows. An external oxidant free electrochem. strategy was designed toward the β-scission of strained C-C bonds in cyclopropylamine. Moreover, the mechanistic studies ascertained that the methodol. encompassed the N-center radical (NCRs) route and provided access to di- or tri-substituted cyclopentane analogs I [R = H, Me; R¹ = H, CO₂Et; R² = CO₂Et, Ph, 4-FC₆H₄, etc.; R³ = Ph, 4-MeC₆H₄, 2-naphthyl, etc.].

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

Saborio, Maricruz G. team published research in ACS Applied Nano Materials in 2022 | 2495-37-6

Saborio, Maricruz G.;Privat, Karen;Tran, Bich Ngoc;Zetterlund, Per B.;Agarwal, Vipul;Estrany, Francesc research published 《 Polymer/Reduced Graphene Oxide/Lignosulfonate Nanocomposite Films as Pseudocapacitor Cathodes》, the research content is summarized as follows. Robust and electrochem. stable electrodes are critical for emerging energy storage devices. In this work, we describe the synthesis and characterization of an asym. pseudocapacitor with a P(nBA-stat-BzMA)/reduced graphene oxide (rGO, 5 wt %) nanocomposite cathode incorporating a low content of lignosulfonate (LS, 5 wt %) and a P(nBA-stat-BzMA)/rGO anode. Besides the advantageous green source and low cost of LS, its properties as a binder and its redox groups contribute to the electrochem. performance improvement of the pseudocapacitor. First, the electrochem. optimization and characterization of an asym. unit cell is performed. Subsequently, a series of 10 unit cells are arranged in a “stack of cells”; electrochem. tests show this assembly to have a capacitance of 4.90 F cm^-3 (8.60 F g^-1), maximum power of 610 W kg^-1, energy of 4.32 W h kg^-1, loss of electroactivity of 1.8%, capacitance retention of 98%, and Coulombic efficiency of 108% after 1000 charge-discharge cycles at a constant current of 0.12 A cm^-3. Morphol. anal. revealed an increase in surface roughness after LS incorporation within the cathode. Electrode-electrolyte resistances were calculated via electrochem. impedance spectroscopy, which allowed us to propose a model of electrode-electrolyte interaction for this system.

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

Rymaruk, Matthew J. team published research in Angewandte Chemie, International Edition in 2021 | 2495-37-6

HPLC of Formula: 2495-37-6, Benzyl methacrylate, also known as Benzyl methacrylate, is a useful research compound. Its molecular formula is C11H12O2 and its molecular weight is 176.21 g/mol. The purity is usually 95%.
Benzyl methacrylate is a chemical compound that belongs to the group of benzyl compounds. It has a copolymer structure with methyl ethyl methacrylate (MEMA) and hydroxyl groups. Benzyl methacrylate is produced by polymerization of benzyl chloride with allyl carbonate in the presence of radiation, forming a polymeric matrix. The morphology of this copolymer depends on the length of the benzyl chains and the concentration of MEMA., 2495-37-6.

Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 2495-37-6, formula is C11H12O2, Name is Benzyl methacrylate. They 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. HPLC of Formula: 2495-37-6.

Rymaruk, Matthew J.;O’Brien, Cate T.;Gyoergy, Csilla;Darmau, Bastien;Jennings, James;Mykhaylyk, Oleksandr O.;Armes, Steven P. research published 《 Small-Angle X-Ray Scattering Studies of Block Copolymer Nano-Objects: Formation of Ordered Phases in Concentrated Solution During Polymerization-Induced Self-Assembly》, the research content is summarized as follows. We report that polymerization-induced self-assembly (PISA) can be used to prepare lyotropic phases comprising diblock copolymer nano-objects in non-polar media. RAFT dispersion polymerization of benzyl methacrylate (BzMA) at 90°C using a trithiocarbonate-capped hydrogenated polybutadiene (PhBD) steric stabilizer block in n-dodecane produces either spheres or worms that exhibit long-range order at 40% weight/weight solids. NMR studies enable calculation of instantaneous copolymer compositions for each phase during the BzMA polymerization As the PBzMA chains grow longer when targeting PhBD₈₀-PBzMA₄₀, time-resolved small-angle X-ray scattering reveals intermediate body-centered cubic (BCC) and hexagonally close-packed (HCP) sphere phases prior to formation of a final hexagonal cylinder phase (HEX). The HEX phase is lost on serial dilution and the aligned cylinders eventually form disordered flexible worms. The HEX phase undergoes an order-disorder transition on heating to 150°C and a pure HCP phase forms on cooling to 20°C.

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

Risangud, Nuttapol team published research in European Polymer Journal in 2021 | 2495-37-6

Related Products of 2495-37-6, Benzyl methacrylate, also known as Benzyl methacrylate, is a useful research compound. Its molecular formula is C11H12O2 and its molecular weight is 176.21 g/mol. The purity is usually 95%.
Benzyl methacrylate is a chemical compound that belongs to the group of benzyl compounds. It has a copolymer structure with methyl ethyl methacrylate (MEMA) and hydroxyl groups. Benzyl methacrylate is produced by polymerization of benzyl chloride with allyl carbonate in the presence of radiation, forming a polymeric matrix. The morphology of this copolymer depends on the length of the benzyl chains and the concentration of MEMA., 2495-37-6.

Risangud, Nuttapol;de Jongh, Patrick A. J. M.;Wilson, Paul;Haddleton, David M. research published 《 Synthesis of biodegradable liquid-core microcapsules composed of isocyanate functionalized poly(ε-caprolactone)-containing copolymers》, the research content is summarized as follows. A combination of reversible deactivation radical polymerization (RDRP), isocyanate chem., and a convenient drying process via spray drying is employed to fabricate powder-form biodegradable liquid-core microcapsules. Two different mol. weight α,ω-poly(ε caprolactone) RDRP macroinitiators were first prepared through esterification to obtain the degradable α-halo ester initiators. Subsequently, poly(benzyl methacrylate-co-isocyanatoethyl methacrylate) (P(BnMA_a-co-IEM_b)) copolymers were synthesized from the RDRP macroinitiators using a copper(0)-mediated polymerization system at ambient temperature By controlling the macroinitiator to monomer feeding ratio from 1:50 to 1:100, the resultant copolymers had number average mol. weights (M_n) in the range of 7900-17800 g mol^-1 with dispersities (D) of 1.42-1.52. Afterward, the isocyanate-containing copolymers were employed in the fabrication of particles via interfacial polymerization, followed by a water removal process using spray drying. All polymers and particles were thoroughly characterized using a range of spectroscopic, chromatog. and microscopy analyses.

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

Pihtili, Guzin team published research in Journal of Molecular Structure in 2021 | 2495-37-6

Pihtili, Guzin;Biryan, Fatih research published 《 Electrical investigation on Eu⁺³– doped copolymer composite system and conventional kinetic analysis》, the research content is summarized as follows. Poly(maleic anhydride-co-benzyl methacrylate) copolymer was prepared by using free radical polymerization (FRP) method at 70°C. The structural characterization of the polymer was accomplished FT-IR, ¹H and ¹³C NMR spectroscopic techniques. P(MA-co-BMA)/ EuCl₃ composites were prepared rate of 2%, 5% and 10% (weight/weight). The thermal behavior of pure copolymer was investigated by thermogravimetric anal. (TGA) and differential scanning calorimetry (DSC). Thermal decomposition kinetics of poly(MA-co-BMA) carried out from Flynn-Wall-Ozawa method via TG curves for calculated apparent activation energies. According to FWO; the activation energy (E_a) was estimated as; 185.61 kJ/mol. Dielec. and elec. properties of copolymer/composite systems were investigated against frequency (range from 100 Hz to 20 kHz) at room temperature by using an impedance analyzer. The effect of EuCl₃ concentration on dielec. constant, dielec. loss factors, ac conductivity, susceptance (B) and impedance (Z) was investigated. A remarkable increase was observed in dielec. and a.c. elec. properties were observed with the addition of Eu⁺³ to the polymer matrix. The B and Z parameters of poly(MA-co-BMA) and composites were investigated depending on frequency at room temperature based on the a.c. (AC).

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

Pang, Bo team published research in ACS Applied Nano Materials in 2022 | 2495-37-6

Pang, Bo;Liu, Yuan;Cao, Rong;Zhang, Wangqing research published 《 Hybrid Nanoscale Vesicles of Polyhedral Oligomeric Silsesquioxane-Based Star Block Copolymers for Thermal Insulation Applications》, the research content is summarized as follows. Organic-inorganic hybrid vesicles of the polyhedral oligomeric silsesquioxane (POSS)-based star block copolymer of poly(N-isopropylacrylamide)-block-polystyrene [POSS-(PNIPAM-b-PS)₈] were synthesized by polymerization-induced self-assembly via reversible addition-fragmentation chain transfer (RAFT) polymerization employing a POSS-based macromol. chain transfer agent. The average diameter, the membrane thickness, and the cavity volume fraction of the POSS-(PNIPAM-b-PS)₈ vesicles are 212 nm, 21 nm, and 52%, resp. The POSS-(PNIPAM-b-PS)₈ vesicles exhibit good thermal stability and have 12% higher Young’s modulus than the vesicles of linear block copolymer counterparts. Due to the high mech. strength, the POSS-(PNIPAM-b-PS)₈ vesicles can keep structural integrity in the dried state. The coating of the POSS-(PNIPAM-b-PS)₈ vesicles is prepared by casting the dispersion of the star block copolymer vesicles at room temperature, and then, its application as a thermal insulation coating is investigated. It is found that the POSS-(PNIPAM-b-PS)₈ vesicles can be used as qualified thermal insulation materials with the thermal conductivity as low as 0.131 W/m·K.

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

Pang, Liangzhi team published research in Synthesis in 2022 | 2495-37-6

Synthetic Route of 2495-37-6, Benzyl methacrylate, also known as Benzyl methacrylate, is a useful research compound. Its molecular formula is C11H12O2 and its molecular weight is 176.21 g/mol. The purity is usually 95%.
Benzyl methacrylate is a chemical compound that belongs to the group of benzyl compounds. It has a copolymer structure with methyl ethyl methacrylate (MEMA) and hydroxyl groups. Benzyl methacrylate is produced by polymerization of benzyl chloride with allyl carbonate in the presence of radiation, forming a polymeric matrix. The morphology of this copolymer depends on the length of the benzyl chains and the concentration of MEMA., 2495-37-6.

Polyesters are important plastics, with monomers linked by ester moieties. Phosphoesters form the backbone of DNA molecules. 2495-37-6, formula is C11H12O2, Name is Benzyl methacrylate.Nitrate esters, such as nitroglycerin, are known for their explosive properties. Synthetic Route of 2495-37-6.

Pang, Liangzhi;Sun, Qilin;Huang, Zhan;Li, Suhua;Li, Qiankun research published 《 Cobalt-Tertiary Amine Mediated Peroxy-trifluoromethylation and -halodifluoromethylation of Alkenes with CF₂XBr (X = F, Cl, Br) and tert-Butyl Hydroperoxide》, the research content is summarized as follows. An efficient cobalt-tertiary amine mediated peroxy-trifluoromethylation and -halodifluoromethylation of alkenes with simple and inexpensive CF₂XBr (X = F, Cl, Br) has been described. This method demonstrated broad substrate scope and good to high yields with the tolerance of mono-, di-, and trisubstituted alkenes with both electron-donating and electron-withdrawing groups. The protocol provides an efficient access to various β-peroxyl trifluoromethyl/halodifluoromethyl derivatives Further transformation of these type of compounds into other useful mols., such as a ketene aminal, an α-trifluoromethyl ketone, and a gem-difluoroalkene, demonstrated the utility of this methodol.

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

Polgar, Alexander M. team published research in Polymer Chemistry in 2022 | 2495-37-6

Reference of 2495-37-6, Benzyl methacrylate, also known as Benzyl methacrylate, is a useful research compound. Its molecular formula is C11H12O2 and its molecular weight is 176.21 g/mol. The purity is usually 95%.
Benzyl methacrylate is a chemical compound that belongs to the group of benzyl compounds. It has a copolymer structure with methyl ethyl methacrylate (MEMA) and hydroxyl groups. Benzyl methacrylate is produced by polymerization of benzyl chloride with allyl carbonate in the presence of radiation, forming a polymeric matrix. The morphology of this copolymer depends on the length of the benzyl chains and the concentration of MEMA., 2495-37-6.

Ester is a chemical compound derived from an oxoacid (organic or inorganic) in which at least one –OH hydroxyl group is replaced by an –O– alkyl (alkoxy) group, 2495-37-6, formula is C11H12O2, Name is Benzyl methacrylate. as in the substitution reaction of a carboxylic acid and an alcohol. Reference of 2495-37-6.

Polgar, Alexander M.;Huang, Shine H.;Hudson, Zachary M. research published 《 Donor modification of thermally activated delayed fluorescence photosensitizers for organocatalyzed atom transfer radical polymerization》, the research content is summarized as follows. Thermally activated delayed fluorescence (TADF) photosensitizers based on 9,10-dihydro-9,9-dimethylacridine/2,4,6-triphenylpyrimidine conjugates with strong visible absorption, large excited state reduction potentials, and long-lived triplet excited states were successfully employed in the organocatalyzed atom transfer radical polymerization (O-ATRP) of methacrylic monomers. A donor-modification strategy dramatically improved the stability of the photocatalyst radical cations, while retaining their high oxidizing strengths, a key requirement for controlled O-ATRP. Time-resolved photoluminescence studies of the catalysts support initiation by electron transfer from both singlet and triplet states, with functionalized donors producing higher driving forces for photoinduced electron transfer. A donor-modified TADF photocatalyst was found for the synthesis of methacrylic polymers with D below 1.3 at catalyst loadings down to 50 ppm. This catalyst was also successfully applied in block copolymer synthesis, while the unfunctionalized analog yields entirely uncontrolled polymerization

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

Nomura, Takuhiro team published research in Polymer in 2021 | 2495-37-6

Nomura, Takuhiro;Ryukan, Makoto;Matsuoka, Shin-ichi;Suzuki, Masato research published 《 Cooligomerization of γ-butyrolactone with (meth)acrylates catalyzed by N-heterocyclic carbene: Low possibility of hybrid copolymerization》, the research content is summarized as follows. Copolymerization between lactones and vinyl monomers has significant implications for the synthesis of new polymeric materials; however, a highly reactive cyclic monomer, e.g., ε-caprolactone (CL), leads to a copolymeric product but with a complex structure remaining to be elucidated. Herein, we present cooligomerizations of γ-butyrolactone (γBL), a low-polymerizable cyclic monomer, with (meth)acrylates catalyzed by an N-heterocyclic carbene (NHC) under conditions in which no reaction occurs in the absence of either comonomer. Several exptl. studies indicate that the product is not a hybrid cooligomer with an ester linkage in the main chain but a graft cooligomer. The reaction mechanism involves the generation of the γBL enolate by the NHC to initiate oligomerizations of γBL and (meth)acrylates followed by the transesterification of oligo (γBL) with an ester unit of (meth)acrylates. These results prompted us to investigate the previously reported structure of copolymer of CL and Me methacrylate obtained by a phosphazene base catalyst. The hydrolysis experiment revealed that the copolymeric product turned out not to be a hybrid random copolymer.

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