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Thermal behavior of pentachlorophenyl methacrylate–acrylonitrile copolymers
Author(s) -
Azab M. M.
Publication year - 2003
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.13201
Subject(s) - comonomer , copolymer , acrylonitrile , polymer chemistry , azobisisobutyronitrile , thermogravimetry , monomer , nitrile , methacrylate , methyl methacrylate , materials science , polyacrylonitrile , chemistry , formamide , organic chemistry , polymer , inorganic chemistry
Acrylonitrile was copolymerized with pentachlorophenyl methacrylate (PCPMA)in dimethyl formamide using azobisisobutyronitrile as initiator. The composition of the copolymers was determined by nitrogen analysis and the monomer reactivity ratios ( r 1 and r 2 ) were calculated. Both the homopolymer and the copolymers were characterized by a variety of spectral and thermal methods. Thermogravimetry and differential thermal analysis data showed that the comonomer (PCPMA) initiates the nitrile oligomerization reaction in the copolymer upon heating. A mechanism for the initiation of (PCPMA) units in the nitrile copolymers was also proposed. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 296–302, 2004