Premium
Thermal properties of resin copolymers derived from o ‐hydroxy acetophenone
Author(s) -
Nayak P. L.,
Senapati M.,
Choudhury P.
Publication year - 1993
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.1993.070500301
Subject(s) - acetophenone , thermogravimetric analysis , copolymer , catalysis , formaldehyde , monomer , benzoic acid , molar ratio , polymer chemistry , degradation (telecommunications) , chemistry , reaction mechanism , materials science , organic chemistry , polymer , telecommunications , computer science
A variety of crosslinked resin copolymers have been synthesized by condensing o ‐hydroxy acetophenone with formaldehyde and chloro‐substituted benzoic acids and anilines in the presence of acidic and basic catalysts. The physico–chemical properties of the resins are reported. The thermogravimetric analysis method was used to study the thermal behaviour of the resins; the evolution of kinetic parameters and degradation mechanism was also investigated. Resins from chlorobenzoic acids showed clear two‐step degradation neglecting moisture loss, whereas those from chloro anilines gave a somewhat continuous sigmoid. The effect of reaction conditions like monomer, molar ratio, and catalyst is also reported. © 1993 John Wiley & Sons, Inc.