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Interpenetrating polymer networks of bismaleimide and polyether polyurethane–crosslinked epoxy
Author(s) -
Han J. L.,
Li K. Y.
Publication year - 1998
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/(sici)1097-4628(19981226)70:13<2635::aid-app9>3.0.co;2-n
Subject(s) - polyurethane , epoxy , materials science , thermogravimetric analysis , differential scanning calorimetry , composite material , dynamic mechanical analysis , izod impact strength test , interpenetrating polymer network , ultimate tensile strength , polymer , thermomechanical analysis , thermal analysis , polymer chemistry , chemical engineering , thermal , thermal expansion , physics , meteorology , engineering , thermodynamics
In this work, we prepared the interpenetrating polymer networks of bismaleimide and polyether‐type polyurethane(polyoxypropylene)–crosslinked epoxy (BMI/PU(PPG)–EP IPNs) by employing the simultaneous bulk polymerization technique. The polyurethane (PU)–crosslinked epoxy was identified via infrared (IR) spectra analysis. Also investigated herein were the mechanical properties, including tensile strength, Izod impact strength, and fracture energy ( G IC ) of the IPNs with various BMI contents in PU–crosslinked epoxy matrix. In addition, differential scanning calorimetry (DSC) analysis and the thermogravimetric analysis (TGA) were performed to examine the thermal properties of the BMI/PU(PPG)–EP IPNs. In addition, morphology and dynamic mechanical analysis (DMA) of the BMI/PU(PPG)–EP IPNs were also studied. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 2635–2645, 1998