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A study of toluene diisocyanate‐based polyurethanes of various isomer ratios
Author(s) -
Nierzwicki W.,
Walczynski B.
Publication year - 1990
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.1990.070410503
Subject(s) - glass transition , toluene diisocyanate , toluene , materials science , polyurethane , ultimate tensile strength , elastomer , composite material , relaxation (psychology) , polymer , polymer chemistry , polymer science , chemical engineering , organic chemistry , chemistry , psychology , social psychology , engineering
Several urethane elastomers based on poly(oxytetramethylene glycol), butanediol 1,4 and various mixtures of 2,4 and 2,6 toluene diisocyanates were prepared. The tensile strength, moduli, glass transition temperatures, flow temperatures and relaxation properties were measured. These properties are discussed with reference to changes in microphase separation.