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Effect of physical aging on fracture behavior of polyphenylquinoxaline films
Author(s) -
Liu Wanjun,
Shen Jingshu,
Lu Fengcai,
Xu Mao
Publication year - 2000
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 - 10.1002/1097-4628(20001107)78:6<1275::aid-app140>3.0.co;2-f
Subject(s) - differential scanning calorimetry , scanning electron microscope , materials science , glass transition , composite material , fracture (geology) , endothermic process , ultimate tensile strength , morphology (biology) , polymer , chemistry , thermodynamics , physics , adsorption , genetics , biology
The influence of physical aging on the tensile fracture behavior of notched Polyphenylquinoxaline (PPQ‐E) samples has been studied. The dependence of fracture stress and strain on physical aging has been explained. The glass transition temperature (T g ) and the endothermic peak at the end of T g transition with different physical aging were characterized using differential scanning calorimetry (DSC) and the results have also been explained. The morphology of fracture surface was observed by scanning electron microscopy (SEM). © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 1275–1279, 2000