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

Cheng, Yuan-Yuan team published research on Angewandte Chemie, International Edition in 2021 | 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., HPLC of Formula: 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. HPLC of Formula: 2495-37-6.

Cheng, Yuan-Yuan;Yu, Ji-Xin;Lei, Tao;Hou, Hong-Yu;Chen, Bin;Tung, Chen-Ho;Wu, Li-Zhu research published 《 Direct 1,2-Dicarbonylation of Alkenes towards 1,4-Diketones via Photocatalysis》, the research content is summarized as follows. Herein, the first example of 1,2-dicarbonylation of alkenes by photocatalysis was represented. Key to success was that N(n-Bu)₄⁺ not only associates with the alkyl anion to avoid protonation, but also activated the α-keto acid to underwent electrophilic addition The α-keto acid was employed both for acyl generation and electrophilic addition By tuning the reductive and electrophilic ability of the acyl precursor, unsym. 1,4-dicarbonylation was achieved for the first time. This metal-free, redox-neutral and regioselective 1,2-dicarbonylation of alkenes was executed by a photocatalyst for versatile substrates under extremely mild conditions and shows great potential in biomol. and drug mol. derivatization.

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

Chen, Xiaomei team published research on Microchemical Journal in 2022 | 2495-37-6

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. Name: Benzyl methacrylate.

Chen, Xiaomei;Guo, Zhian;Wei, Liulin;Liu, Qian;Zhao, Jingchan research published 《 Use of a temperature-responsive polymer micelle in microextraction method combined with gas chromatography-mass spectrometry for the determination of seven polycyclic aromatic hydrocarbons》, the research content is summarized as follows. In this study, a novel microextraction method based on temperature-responsive polymer micelle has been designed combined with gas chromatog.-mass spectrometry for the determination of seven polycyclic aromatic hydrocarbons (PAHs) in tea infusions. The method is based on the formation of micelles by poly (N-isopropylacrylamide)-block-poly (benzyl methacrylate) (PNIPAM-b-PBnMA) in aqueous samples at low temperatures and encapsulation of the targets due to the π-π and hydrophobic interaction between PBnMA with PAHs compounds, followed by the formation and insolubilization of agglomerates containing the preconcd. analytes by increasing the temperature Under the optimal conditions, good linearity was observed in the range of 0.1-100μg L^-1 with the coefficient of determination being above 0.9959. The limits of detection and limits of quantitation were in the range of 0.021-0.042μg L^-1 and 0.064-0.128μg L^-1, resp. The intra-day and inter-day precision were 3.4-9.1% and 5.9-13.7%, resp. The established method was applied successfully to analyze two tea infusions.

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

Chen, Lili team published research on Advanced Functional Materials 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.

Chen, Lili;Feng, Wenwen;Li, Mengxue;Jin, Zhekai;Zhang, Yucheng;Cheng, Zhe;Liu, Yuncong;Wang, Chao research published 《 A Stiff yet Rapidly Self-Healable Elastomer in Harsh Aqueous Environments》, the research content is summarized as follows. Rapid underwater self-healing elastomers with high mech. strength at ambient temperature are highly desirable for dangerous underwater operations. However, current room temperature self-healing materials have shortcomings, such as low healing strength (below megapascal), long healing time (hours), and decay of healing functions in harsh environments (salty, acidic, and basic solutions), limiting their practical applications. Herein, it is introduced water-stable Debye forces and high-d. nano-sized phys. crosslinking into one network to achieve a stiff yet rapid self-healing elastomer that can work in harsh aqueous environments. The obtained elastomer possesses a high Young’s modulus of 48 MPa (24 times than that of natural elastomer), and it can achieve 90% of maximum mech. strength healing for 10 s at ambient temperature in all types of harsh aqueous conditions, outperforming three orders of magnitudes in healing speed of reported room-temperature self-healing elastomers with Young’s modulus over 10 MPa. The new stiff yet rapidly healable elastomers have great potential in emergent repair in urgent and dangerous cases.

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

Chaudhary, Neha team published research on Journal of Molecular Liquids in 2022 | 2495-37-6

Chaudhary, Neha;Kumar Nain, Anil research published 《 Densities, speeds of sound, refractive indices, excess and partial molar properties of polyethylene glycol 200 + benzyl methacrylate binary mixtures at temperatures from 293.15 to 318.15 K》, the research content is summarized as follows. Green and biodegradable solvents are requisite replacements to volatile organic solvents. Polyethylene glycols have been recognized as alternatives to volatile organic solvents in numerous industrial and pharmaceutical applications because of their unique properties. In this work the measurements of physicochem. properties, viz., densities, ρ, speeds of sound, u and refractive indexes, nD of the binary mixtures of PEG 200 with benzyl methacrylate, including pure liquids, over the entire mole fraction range at the temperatures, T/K = 293.15 to 318.15 and at atm. pressure, p = 101 kPa. The exptl. data were used to calculate the excess molar volume, VEm, excess isentropic compressibility, κEs, excess speed of sound, uE, excess acoustic impedance, ZE, excess molar isentropic compressibility, KEs,m, excess refractive index, nED and deviation in molar refraction, ΔRM . These excess properties were fitted with the Redlich-Kister polynomial equation. In addition, the partial molar volumes and partial molar compressibilities and excess partial molar volumes and excess partial molar compressibilities over the entire mole fraction range; and at infinite dilution were also calculated The trends of these parameters with composition and temperature were discoursed from the point of view of intermol. interactions existed in these mixtures

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

Chaudhary, Neha team published research on Journal of Molecular Liquids in 2021 | 2495-37-6

Chaudhary, Neha;Nain, Anil Kumar research published 《 Correlation between intermolecular interactions and excess properties of polyethylene glycol 400 + benzyl methacrylate binary mixtures at temperatures from 293.15 to 318.15 K》, the research content is summarized as follows. In the present study, the physicochem. properties such as the excess molar volumes, excess isentropic compressibilities, excess speeds of sound, excess molar compressibilities, excess refractive indexes, and partial and excess partial molar volumes/compressibilities have been evaluated from the exptl. measured data of d., speed of sound and refractive index for the binary mixtures of polyethylene glycol 400 (PEG 400) with benzyl methacrylate over entire mole fraction range at the temperatures, T/K = (293.15-318.15) and pressure, p = 101 kPa. The partial molar volume/compressibility and excess partial molar volume/compressibility at infinite dilution have also been calculated The correlations of the excess properties were made with the Redlich-Kister polynomial equation. The observed excess functions have been used to discuss the intermol. interactions prevailing between the components in this system. Also, some theor. mixing rules for correlating the refractive indexes were assessed and the results were compared with exptl. data.

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

Booth, Joshua R. team published research on Polymer Chemistry in 2022 | 2495-37-6

SDS of cas: 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. SDS of cas: 2495-37-6.

Booth, Joshua R.;Davies, Joshua D.;Bon, Stefan A. F. research published 《 ω-Unsaturated methacrylate macromonomers as reactive polymeric stabilizers in mini-emulsion polymerization》, the research content is summarized as follows. Polymer latexes of poly(benzyl methacrylate) P(BzMA) were synthesized by mini-emulsion polymerization, using hexadecane as the hydrophobe and ω-unsaturated methacrylate-based macromonomers as a reactive stabilizer. The amphiphilic macromonomers were synthesized by catalytic chain transfer emulsion polymerization (CCTP) and subsequent chain extension via sulfur-free reversible addition-fragmentation chain transfer (SF-RAFT). Their critical micelle concentration (CMC) was determined by dynamic light scattering (DLS), and micelle size was measured using DLS and small angle X-ray scattering (SAXS). The surface activity of the stabilizers was measured by pendant drop tensiometry and compared to modelled behavior. For the mini-emulsion polymerizations, macromonomer stabilizers were added at a range of concentrations, with respect to the dispersed phase. Using less than 5 wt% stabilizer, SEM micrographs showed many of the particles were bowl-shaped. At concentrations of 5 wt% and higher, bimodal droplet and particle distributions were observed by DLS and SEM. We propose shear-dependent depletion flocculation as the explanation. The effectiveness of the reactive stabilizers was tested in terms of latex stability and mol. weight control. Resistance to coagulation during freeze-thaw cycles and prolonged dialysis were tested. Examination of P(BzMA) reaction kinetics and mol. weight indicated that the incorporation of macromonomer is gradual and less than quant. at the end of the polymerization process, in agreement with the mechanistic understanding.

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

Cassin, Savannah R. team published research on Polymer Chemistry in 2022 | 2495-37-6

Cassin, Savannah R.;Flynn, Sean;Chambon, Pierre;Rannard, Steve P. research published 《 Accessing new and scalable high molecular weight branched copolymer structures using transfer-dominated branching radical telomerization (TBRT)》, the research content is summarized as follows. Academic and com. branched polymer synthesis very commonly relies upon a repeating chem. derived from a single monomer. Literature reports of branched homopolymers often rely upon chemistries that are difficult to scale. Step-growth polymerizations are widely utilized which also limit the mol. weight of resulting branched macromols. The recent reports of transfer-dominated branching radical telomerization (TBRT) provide readily accessible routes to a range of previously inaccessible macromol. architectures utilizing free radical reactions but resulting in step-growth-like backbones. Here we show how TBRT may be used to form branched statistical copolymers with step-growth backbone chemistries using facile free radical reaction conditions through three novel synthesis strategies leading to new materials with readily tunable phys. properties. The strategies are outlined conceptually, exemplified by exptl. examples and determination of glass transition temperatures provides clear evidence of homogeneous statistical copolymer formation.

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

Cao, Huaixuan team published research on ACS Applied Materials & Interfaces in 2021 | 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.

Cao, Huaixuan;Escamilla, Maria;Anas, Muhammad;Tan, Zeyi;Gulati, Siddhant;Yun, Junyeong;Arole, Kailash Dhondiram;Lutkenhaus, Jodie L.;Radovic, Miladin;Pentzer, Emily B.;Green, Micah J. research published 《 Synthesis and Electronic Applications of Particle-Templated Ti₃C₂T_z MXene-Polymer Films via Pickering Emulsion Polymerization》, the research content is summarized as follows. MXene/polymer composites have gained widespread attention due to their high elec. conductivity and extensive applications, including electromagnetic interference (EMI) shielding, energy storage, and catalysis. However, due to the difficulty of dispersing MXenes in common polymers, the fabrication of MXene/polymer composites with high elec. conductivity and satisfactory EMI shielding properties is challenging, especially at low MXene loadings. Here, we report the fabrication of MXene-armored polymer particles using dispersion polymerization in Pickering emulsions and demonstrate that these composite powders can be used as feedstocks for MXene/polymer composite films with excellent EMI shielding performance. Ti₃C₂T_z nanosheets are used as the representative MXene, and three different monomers are used to prepare the armored particles. The presence of nanosheets on the particle surface was confirmed by XPS and SEM. Hot pressing the armored particles above T_g of the polymer produced Ti₃C₂T_z/polymer composite films; the films are elec. conductive because of the network of nanosheets templated by the particle feedstocks. For example, the particle-templated Ti₃C₂T_z/polystyrene film had an elec. conductivity of 0.011 S/cm with 1.2 wt % of Ti₃C₂T_z, which resulted in a high radio frequency heating rate of 13-15°C/s in the range of 135-150 MHz and an EMI shielding effectiveness of ~21 dB within the X band. This work provides a new approach to fabricate MXene/polymer composite films with a templated elec. network at low MXene loadings.

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

Cai, Chen-Yan team published research on Journal of the American Chemical Society in 2022 | 2495-37-6

Cai, Chen-Yan;Zheng, Yun-Tao;Li, Jing-Fu;Xu, Hai-Chao research published 《 Cu-Electrocatalytic Diazidation of Alkenes at ppm Catalyst Loading》, the research content is summarized as follows. Herein a scalable Cu-electrocatalytic alkene diazidation reaction was developed with 0.02 mol % (200 ppm) of copper(II) acetylacetonate as the precatalyst without exogenous ligands. In addition to its use of low catalyst loading, the electrocatalytic method was scalable, compatible with a broad range of functional groups, and applicable to the diazidation of α,β-unsaturated carbonyl compounds and mono-, di-, tri-, and tetrasubstituted unactivated alkenes for the synthesis of diazo-alkanes, e.g., I.

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

Burroughs, Laurence team published research on Biomaterials in 2021 | 2495-37-6

Burroughs, Laurence;Amer, Mahetab H.;Vassey, Matthew;Koch, Britta;Figueredo, Grazziela P.;Mukonoweshuro, Blessing;Mikulskis, Paulius;Vasilevich, Aliaksei;Vermeulen, Steven;Dryden, Ian L.;Winkler, David A.;Ghaemmaghami, Amir M.;Rose, Felicity R. A. J.;de Boer, Jan;Alexander, Morgan R. research published 《 Discovery of synergistic material-topography combinations to achieve immunomodulatory osteoinductive biomaterials using a novel in vitro screening method: The ChemoTopoChip》, the research content is summarized as follows. Human mesenchymal stem cells (hMSCs) are widely represented in regenerative medicine clin. strategies due to their compatibility with autologous implantation. Effective bone regeneration involves crosstalk between macrophages and hMSCs, with macrophages playing a key role in the recruitment and differentiation of hMSCs. However, engineered biomaterials able to simultaneously direct hMSC fate and modulate macrophage phenotype have not yet been identified. A novel combinatorial chem.-topog. screening platform, the ChemoTopoChip, is used here to identify materials suitable for bone regeneration by screening 1008 combinations in each experiment for human immortalized mesenchymal stem cell (hiMSCs) and human macrophage response. The osteoinduction achieved in hiMSCs cultured on the “hit” materials in basal media is comparable to that seen when cells are cultured in osteogenic media, illustrating that these materials offer a materials-induced alternative to osteo-inductive supplements in bone-regeneration. Some of these same chem.-microtopog. combinations also exhibit immunomodulatory stimuli, polarizing macrophages towards a pro-healing phenotype. Maximum control of cell response is achieved when both chem. and topog. are recruited to instruct the required cell phenotype, combining synergistically. The large combinatorial library allows us for the first time to probe the relative cell-instructive roles of microtopog. and material chem. which we find to provide similar ranges of cell modulation for both cues. Machine learning is used to generate structure-activity relationships that identify key chem. and topog. features enhancing the response of both cell types, providing a basis for a better understanding of cell response to micro topog. patterned polymers.

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