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Thermal degradation study of interpenetrating polymer network based on modified bismaleimide resin and cyanate ester
Author(s) -
Fan Jing,
Hu Xiao,
Yue Chee Yoon
Publication year - 2003
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.962
Subject(s) - cyanate ester , thermogravimetric analysis , thermal stability , materials science , curing (chemistry) , thermal decomposition , cyanate , polymer , char , interpenetrating polymer network , degradation (telecommunications) , composite material , activation energy , polymer chemistry , pyrolysis , chemical engineering , chemistry , organic chemistry , telecommunications , computer science , epoxy , engineering
Interpenetrating polymer networks (IPNs) based on different ratios of a modified bismaleimide resin (BMI/DBA) and cyanate ester (b10) have been synthesized via prepolymerization followed by thermal curing. A systematic thermal degradation study of these new BMI/DBA‐CE IPN resin systems was conducted by thermogravimetric analysis at different heating rates both in N 2 (thermal stability) and in air (thermal‐oxidative stability). The cured BMI/DBA‐CE IPN resin systems show excellent thermal stability, which could be demonstrated by 5% weight loss temperature ( T 5% ) ranging between 409 and 423 °C, maximum decomposition rate temperature ( T max ) ranging between 423 and 451 °C, and the char yields at 800 °C ranging from 37% to 41% in nitrogen at a heating rate of 10 °C min −1 . The apparent activation energy associated with the main degradation stage of the cured BMI/DBA‐CE IPN resin systems was determined using the Kissinger method. The obtained results provide useful information in drawing correlation between thermal properties and structure. © 2003 Society of Chemical Industry