Novel copolymers of styrene. 10. halogen ring-disubstituted butyl 2-cyano-3-phenyl-2-propenoates

作者：Kharas Gregory B^*; Feng Hui; Robinson Sophia G; Eduardo Alpizar; Carlson Katelyn M A; Djordjevic Valentina; Dominguez Erica; English Kayla M; Hudson Rebecca J; Kennedy David B

来源：Journal of Macromolecular Science, Part A: Pure and Applied Chemistry , 2016, 53(5): 253-257.

DOI：10.1080/10601325.2016.1151637

• styrene copolymers
• radical copolymerization
• Trisubstituted ethylenes

Novel trisubstituted ethylenes, halogen ring-disubstituted butyl 2-cyano-3-phenyl-2-propenoates, RPhCH=C(CN)CO2C4H9 (where R is 2,5-diBr, 3,5-diBr, 2,3-diCl, 2,4-diCl, 2,5-diCl, 2,6-diCl, 3,4-diCl, 3,5-diCl) were prepared and copolymerized with styrene. The monomers were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-disubstituted benzaldehydes and butyl 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 (2-5% wt.), which then decomposed in the 500-800 degrees C range.

• 出版日期2016-5-3