International Journal of Chemistry Studies

ISSN: 2581-348X

Vol. 3, Issue 4 (2019)

Synthesis and styrene copolymerization of halogen ring-substituted isopropyl cyanophenyl propanoates

Author(s): Benjamin Y Killam, Timothy S Bullock II, Juliana Carmichael, Shelby J Carvalho, Anais A Dominguez, Tyler Faith, Jesse Garcia, Andrew D Gould, Emily E Jacobs, Kirsten Kochan, Charles M Rubert Pérez, Sara M Rocus, Gregory B Kharas
Abstract: Halogen ring-substituted isopropyl 2-cyano-3-phenyl-2-propenoates, RPhCH=C(CN)CO2CH(CH3)2 (where R is 2-Br, 3-Br, 4-Br, 2-Cl, 3-Cl, 4-Cl, 2-F, 3-F, 4-F) were prepared and copolymerized with styrene. The compounds were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and isopropyl cyanoacetate. All the propenoates were copolymerized with styrene in solution with radical initiation (ABCN) at 70°C. The monomers and copolymers were characterized by elemental analysis, FTIR, 1H and 13C-NMR. Thermal properties of the copolymers were estimated by DSC and TGA analyses.
Pages: 17-21  |  249 Views  92 Downloads
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