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Oligomerization reactions in acrylonitrile‐ N ‐Naphthyl‐ N ′‐acryloylthiourea copolymers in the solid state
Author(s) -
Hamza S. M.,
Aly I. M.
Publication year - 1992
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.1992.070460404
Subject(s) - acrylonitrile , comonomer , copolymer , polymer chemistry , nitrile , thermogravimetry , depolymerization , homolysis , thermal decomposition , chemistry , materials science , polymer , organic chemistry , radical , inorganic chemistry
N ‐naphthyl‐ N ′‐acryloylthiourea homopolymer (PNAT) and a series of copolymers of acrylonitrile (AN) with N ‐naphthyl‐ N ′‐acryloylthiourea (NAT) have been prepared and characterized by a variety of analytical and spectral methods. Thermogravimetry (TG) and differential thermal analysis (DTA) data showed that the homopolymer (PNAT) undergoes homolytic scission followed by depolymerization and decomposition upon heating. On the other hand the comonomer (NAT) initiates the nitrile oligomerization reaction in the copolymers upon heating. A mechanism for the initiation of the NAT units in the nitrile copolymers was also proposed.