Synthesis and styrene copolymerization of novel methyl and methoxy tri, tetra, penta ring-substituted isobutyl phenylcyanoacrylates

23 October 2020, Version 2
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Novel methyl and methoxy tri, tetra, penta ring-substituted isobutyl phenylcyanoacrylates, RPhCH=C(CN)CO2CH2CH(CH3)2 , where R is 2,4,5-trimethyl, 2,4,6-trimethyl, 2,3,5,6-tetramethyl, pentamethyl, 2,3-dimethyl-4-methoxy, 2,5-dimethyl-4-methoxy, 2,4-dimethoxy-3-methyl, 2,4-dimethoxy-6-methyl were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and isobutyl cyanoacetate and characterized by CHN analysis, IR, 1H and 13C NMR. The acrylates were copolymerized with styrene in solution with radical initiation (ABCN) at 70°C. The compositions of the copolymers were calculated from nitrogen analysis.


Keywords

Knoevenagel condensation
Phenyl cyanoacrylates
radical copolymerization
styrene copolymers
trisubstituted ethylenes

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