Novel Copolymers of Styrene. 5. Methyl and Methoxy Ring-Disubstituted Butyl 2-Cyano-3-Phenyl-2-Propenoates

作者：Kharas Gregory B^*; Feng Hui; Arendt Lily A; Belton Sarah E; Coy Dibley James S; Edwards Myles Q; Franz Emily K; Grin Alisa; Hale Chelsea M; Oyeyipo Itunu C; Wolske Amanda L; Zavala Paula L; Zenunovic Arta

来源：Journal of Macromolecular Science, Part A: Pure and Applied Chemistry , 2015, 52(12): 976-981.

DOI：10.1080/10601325.2015.1095598

• Trisubstituted ethylenes
• radical copolymerization
• styrene copolymers

Novel trisubstituted ethylenes, methyl and methoxy ring-disubstituted butyl 2-cyano-3-phenyl-2-propenoates, RPhCH=C(CN)CO2C4H9 (where R is 2,4-dimethyl, 2,5-dimethyl, 2,6-dimethyl, 3,5-dimethyl, 2,3-dimethoxy, 2,4-dimethoxy, 2,5-dimethoxy, 2,6-dimethoxy, 3,4-dimethoxy, and 3,5-dimethoxy) were prepared and copolymerized with styrene. The monomers were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and butyl cyanoacetate, and characterized by CHN analysis, IR, H-1 and C-13-NMR. All the ethylenes were copolymerized with styrene in solution with radical initiation (ABCN) at 70 degrees C. The compositions of the copolymers were calculated from nitrogen analysis and the structures were analyzed by IR, H-1 and C-13-NMR. Decomposition of the copolymers in nitrogen occurred in two steps, first in the 200-500oC range with residue (0.7-4.0% wt.), which then decomposed in the 500-800oC range.

• 出版日期2015-12-2