Novel copolymers of styrene. 3. Some ring-substituted propyl 2-cyano-3-phenyl-2-propenoates

作者：Kharas Gregory B^*; Barros Wellington M B; Ackerman Katherine E; Chanos Alexa; Comuzzie Brendan M; Dalloul Remy; Dam Kim Marie A; Garcia Braulio V; Erickson Cassidy A; Smith Tara M; Cao Phoebus Sun; Ursin Rebecca L; Zajecka Alexa M

来源：Journal of Macromolecular Science Part A-Pure and Applied Chemistry, 2016, 53(10): 605-609.

DOI：10.1080/10601325.2016.1212307

• Trisubstituted ethylenes
• radical copolymerization
• styrene copolymers

Novel trisubstituted ethylenes, ring-substituted propyl 2-cyano-3-phenyl-2-propenoates, RPhCHC(CN)CO2C3H7 (where R is 2-C6H5CH2O, 3-C6H5CH2O, 4-C6H5CH2O, 4-CH3COO, 3-CH3CO, 4-CH3CONH, 2-CN, 3-CN, 4-CN, 4-(CH3)(2)N, 4-(C2H5)(2)N) were prepared and copolymerized with styrene. The monomers were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and propyl cyanoacetate, and characterized by CHN analysis, IR, H-1 and C-13-NMR. All the ethylenes were copolymerized with styrene (M-1) 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 200-500 degrees C range with residue (2.7-8.6% wt.), which then decomposed in the 500-800 degrees C range.

• 出版日期2016