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Rheological and mechanical properties of polyurethane modified by BHET
Author(s) -
Lin ChenChong,
Yang BinZw
Publication year - 1980
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.1980.070250907
Subject(s) - polyurethane , polyester , polyol , elastomer , materials science , glass transition , amorphous solid , polymer chemistry , rheology , polymer , chemistry , composite material , organic chemistry
The chemical structure of polyurethane modified by BHET is correlated with its mechanical and dynamic mechanical properties. Evaluation of this amorphous elastomer by means of stress–strain tests and transition temperature measurements reveals that incorporation of the BHET structure into the soft polyester segment affects the domain structure and, in turn, the entire mechanical behavior of polyurethane. It is also shown that polyurethane has a wide range of T g and secondary transition temperature by varying the ratio of BHET to EG as well as the ratio of TDI to polyester polyol.