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Polymers with pendant isocyanate groups. II. Dual synthesis and properties of poly(acrylonitrile‐co‐styryl isocyanate)
Author(s) -
Liebersohn Aharon,
Kohn David H.
Publication year - 1976
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1976.070200709
Subject(s) - acrylonitrile , isocyanate , copolymer , polymer chemistry , monomer , solubility , materials science , dimethylformamide , polymer , chemistry , organic chemistry , polyurethane , solvent
The copolymer poly(acrylonitrile‐co‐styryl isocyanate) was prepared directly in bulk by radical initiation either from the monomer pair acrylonitrile–cinnamoyl azide or from the pair acrylonitrile–styryl isocyanate. The copolymerization parameters, calculated by the conventional scheme, are r 1 , = 3.5 ± 0.5; r 2 = 0 ± 0.5, for the first pair and r 1 = 9 ± 0.5; r 2 = 0 ± 0.5 for the second pair. The basic physical properties (solubility, intrinsic viscosity, and thermal behavior) of the new copolymer were determined and the chemical reactions of the isocyanate group with alcohol and with dimethylformamide were investigated.