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. Quality Control of 2495-37-6.
Clothier, Glenn K. K.;Guimaraes, Thiago R.;Moad, Graeme;Zetterlund, Per B. research published 《 Expanding the Scope of RAFT Multiblock Copolymer Synthesis Using the Nanoreactor Concept: The Critical Importance of Initiator Hydrophobicity》, the research content is summarized as follows. Precise multiblock copolymer synthesis coupled with self-assembly offers morphol. control on length scales ranging from a few nanometers to micrometer scale, providing enormous opportunities for future development of advanced materials and applications. The scope of multiblock copolymer synthesis via RAFT polymerization has recently been expanded by application of the nanoreactor concept for emulsion polymerization This enabled use of slow propagating monomers, such as styrenes and methacrylates, in multiblock synthesis. However, severe limitations attributed to the high polymer glass transition temperature (Tg) of some polymers have hitherto remained. The use of monomers that give such high Tg polymer effectively prevented penetration of aqueous phase-generated radicals into the polymer particles wherein the RAFT functionality is located. We here demonstrate that these constraints can be relieved by judicious choice of the radical initiator. Multiblock homopolymers were synthesized by seeded RAFT emulsion polymerization using initiators that differ substantially in hydrophobicity. Ten sequential chain extensions using tert-Bu methacrylate (Tg of PtBMA = 118°C) with targeted block DP = 100 were conducted at 80°C for each initiator. Markedly narrower mol. weight distributions were obtained when more hydrophobic initiators were used. The same polymerizations targeting low Tg polymer (PnBMA; Tg = 20°C) resulted in only minor differences in control when the different initiators were used, supporting our hypothesis on the role of radical penetration. The present results are anticipated to significantly expand the scope of RAFT polymerization in aqueous emulsion by allowing access to a wider range of low dispersity multiblock copolymers.
Quality Control 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.
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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics