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. Name: Benzyl methacrylate.
Tong, Yujie;Liu, Yiming;Chen, Qi;Mo, Yitian;Ma, Yuguo research published 《 Long-Lived Triplet Excited-State Bichromophoric Iridium Photocatalysts for Controlled Photo-Mediated Atom-Transfer Radical Polymerization》, the research content is summarized as follows. The “energy reservoir” tactic is used for the first time to regulate the photochem. properties, including excited lifetime and photoluminescence quantum yield of photocatalysts (PCs) for controlled photo-mediated atom transfer radical polymerization (ATRP). Polymerizations are efficiently conducted using long-lived bichromophoric complexes Ir(ppy-s-PPO) and Ir(ppy-s-DBP) as PCs at the ppm level (<10 ppm). The relationships between PC properties and the catalytic performance are analyzed and discussed. Critically, the prolongation of excited lifetime is beneficial for promoting electron transfer during the activation/initiation step and increasing the concentrations of deactivators. Therefore, faster reversible deactivation and a better activation-deactivation equilibrium were achieved. In comparison to Ir(tBuppy)3 with a short excited lifetime, Ir(ppy-s-PPO) and Ir(ppy-s-DBP) offered the advantage to synthesize poly(Me methacrylate) with high mol. weights at low initiator loadings. Furthermore, featuring both a long lifetime and an appropriate quantum yield, Ir(ppy-s-PPO) had better control than Ir(tBuppy)3 over the polymerizations of other monomers, including benzyl methacrylate, iso-Bu acrylate, and styrene. It is an effective method to mediate liveness in polymerization by regulating the excited lifetime and quantum yield of PCs. This study may shed light on the design strategy of high-performance photocatalysts with broad utility for photopolymerization reactions.
Name: Benzyl methacrylate, 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.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics