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Unsaturated polyesters, III. Polyester from maleic anhydride and 1,4‐butylene glycol
Author(s) -
Larez V. Cristobal J.,
Mendoza Gilberto A. Perdomo
Publication year - 1991
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.1991.070430903
Subject(s) - maleic anhydride , polyester , gel permeation chromatography , polymer chemistry , isomerization , steric effects , succinic anhydride , maleic acid , chemistry , organic chemistry , materials science , catalysis , copolymer , polymer
The polyesterification reaction of maleic anhydride and 1,4‐butylene glycol was carried out, using p ‐toluensulphonic acid as catalyst. The resulting material was characterized by IR and H 1 ‐NMR spectroscopy, end group analysis, and gel permeation chromatography. It is shown that there is a relationship between maleate to fumarate isomerization and steric interaction among condensed groups on the one hand and the tendency of the reacting system to crosslink or gel.