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A new homologous series of linear aliphatic unsaturated hydroxypolyesters a polyol soft segments for polyurethanes: Synthesis and characterization
Author(s) -
Pourjavadi Ali,
Rezai Nasrin,
Zohuriaanm. M. J.
Publication year - 1998
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/(sici)1097-4628(19980411)68:2<173::aid-app1>3.0.co;2-n
Subject(s) - adipate , condensation polymer , diol , sebacic acid , polyurethane , polyol , polyester , polymer chemistry , materials science , dispersity , transesterification , adipic acid , chemistry , organic chemistry , polymer , catalysis
Synthesis and characterization of a new series of low molecular weight (MW = 500–3000) OH‐terminated linear aliphatic unsaturated polyesters based on cis ‐2‐butene‐1,4‐diol and oxalic to sebacic acid were investigated. Direct polycondensation and transesterification methods were used for the syntheses. The latter was recognized to be the preferable method due to its lower reaction temperature and time, lower diol/diacid ratio, absence of decarboxylation, and formation of a product with low polydispersity ( M w / M n = 1.3–2.7). Elemental analysis, GPC, FTIR, 1 H‐NMR, DSC, and WAXD were used for the investigations. A segmented polyurethane based on poly ( cis ‐2‐butylene adipate) glycol was also synthesized and spectroscopically identified. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 68: 173–183, 1998