Synthesis and Styrene Copolymerization of Novel Chloro and Fluoro Ring-Trisubstituted Propyl Cyanophenylpropenoates

Jessica Bates, Ashleigh L. Krider, Sana A. Malik, Denny P. May, Maryana Stryelkina, Chloe G. Williams, Daniel T. Wood, Sara M. Rocus and Gregory B. Kharas

International Journal of Chemistry, 2019, vol. 11, issue 1, 79-83

Abstract: Novel trisubstituted ethylenes, ring-substituted propyl 2-cyano-3-phenyl-2-propenoates, RPhCH=C(CN)CO2C3H7 (where R is 2,3,6-trichloro, 2,3,4-trifluoro, 2,3,5-trifluoro, 2,4,5-trifluoro, 2,4,6-trifluoro, 3,4,5-trifluoro) were prepared by the piperidine catalyzed Knoevenagel condensation of ring-trisubstituted benzaldehydes and propyl cyanoacetate. The ethylenes when copolymerized with styrene in solution with radical initiation (ABCN) at 70?C resulted in formation of copolymers. The composition of the copolymers was calculated from nitrogen analysis. The structures and properties were characterized by IR, 1H and 13C-NMR, GPC, DSC, and TGA.

Keywords: radical copolymerization; styrene copolymers; trisubstituted ethylenes (search for similar items in EconPapers)
Date: 2019
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