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Thermal degradation of polymers of captodative substituted olefins
Author(s) -
Tanaka Hitoshi,
Hall Henry K.
Publication year - 1994
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1994.021950616
Subject(s) - polyene , electron paramagnetic resonance , polymer , chemistry , degradation (telecommunications) , monomer , polymer chemistry , radical , photochemistry , infrared spectroscopy , organic chemistry , nuclear magnetic resonance , telecommunications , physics , computer science
Thermal degradations of the polymers of some captodative substituted olefins were studied by means of thermal gravimetry, infrared and electron paramagnetic resonance (EPR) spectroscopy, and evolved gas analysis. It was found that the initial degradation temperature of the homopolymers varies from 166 to 291°C and is correlated to the magnitude of the EPR coupling constant of the β‐hydrogen of the radicals derived from the corresponding captodative olefins. It was also found that poly(methyl α‐methoxyacrylate) depolymerizes to the monomer, while poly(α‐cycanovinyl acetate) eliminates mainly acetic acid to give a polyene.