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Dangling polymer networks: Glass transition of PU elastomers
Author(s) -
Lee YngLong,
Sung PoHou,
Liu HsinTzu,
Chou LainChing,
Ku WenHsiung
Publication year - 1993
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.1993.070490607
Subject(s) - prepolymer , isocyanate , elastomer , glass transition , polyurethane , polyol , polymer , materials science , polymer chemistry , polymer science , dynamic mechanical analysis , activation energy , chemical engineering , composite material , chemistry , organic chemistry , engineering
Polyurethane elastomers possessing dangling chains were prepared by partial substitution of the multifunctional polyol with a monohydroxyl alcohol in the reaction with an isocyanate terminated prepolymer. The dynamic mechanical spectroscopy showed that created dangling segements resulted in a broader glass‐transition region. This indicated material with potentially good energy absorbing properties might be prepared from a ‘dangling polymer’ system. © 1993 John Wiley & Sons, Inc.
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