Novel alkyl ring-substituted t-butyl phenylcyanoacrylates, RPhCH=C(CN)CO2C(CH3){3|three} ({where|exactly where} R is H, 2-methyl, 3-methyl, 4-methyl, 2-ethyl, 4-ethyl, 4-propyl, 4-i-propyl, 4-butyl, 4-i-butyl) {were|had been|have been} {prepared|ready} and copolymerized with styrene. The acrylates {were|had been|have been} synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and t-butyl cyanoacetate, and characterized by CHN {analysis|evaluation}, IR, 1H and 13C NMR. {All the|All of the|Each of the} ethylenes {were|had been|have been} copolymerized with styrene in {solution|answer|remedy|resolution|option} with radical initiation (ABCN) at 70°C. The compositions {of the|from the|in the|on the|with the|of your} copolymers {were|had been|have been} calculated from nitrogen {analysis|evaluation}. Price of 2-(4,4-Difluorocyclohexyl)acetic acid 83249-10-9 web PMID:23789847
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