SYNTHESIS OF NEW POLYIMIDES BY DIELS-ALDER REACTION OF BIS(2-PYRONE)SWITH BISMALEIMIDES

Citation
G. Alhakimi et al., SYNTHESIS OF NEW POLYIMIDES BY DIELS-ALDER REACTION OF BIS(2-PYRONE)SWITH BISMALEIMIDES, Journal of polymer science. Part A, Polymer chemistry, 33(7), 1995, pp. 1133-1142
Citations number
8
Categorie Soggetti
Polymer Sciences
ISSN journal
0887624X
Volume
33
Issue
7
Year of publication
1995
Pages
1133 - 1142
Database
ISI
SICI code
0887-624X(1995)33:7<1133:SONPBD>2.0.ZU;2-C
Abstract
The reaction of various substituted bis(2-pyrone)s with bismaleimides in dilute solution was carried out to produce linear soluble polymers with coronand structure. The number-average molecular weights of the p olymers ranged from 7000 to 18,000 (vapor pressure osmometry). Polymer structures were identified by NMR spectroscopy and model reactions. T he stereochemistry and the mechanism are discussed. (C) 1995 John Wile y and Sons, Inc.