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Reinforcement of polyurethane‐based shape memory polymer by hindered phenol compounds and silica particles
Author(s) -
Kuriyagawa Mizue,
Kawamura Takanobu,
Hayashi Shunichi,
Nitta KohHei
Publication year - 2010
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.32055
Subject(s) - polyurethane , materials science , glass transition , phenol , polymer , composite material , shape memory polymer , phenols , ultimate tensile strength , yield (engineering) , dynamic mechanical analysis , reinforcement , modulus , chemistry , organic chemistry
Reinforcement of polyurethane‐based shape memory polymer materials was investigated by adding hindered phenol compounds and silica particles. According to dynamic mechanical analysis, these fillers had no effect on the glass transition temperature and the activation energy of soft segments, indicating that the fillers have no ability to influence the molecular mobility of soft segments. It was found from the tensile tests that the yield stress was increased primarily by addition of the hindered phenols rather than the silica particles, whereas Young's modulus was enhanced by the silica particles rather than the hindered phenols. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010