Abstract
This work used maleimide-terminated polyurethane-grafted epoxy, or epoxy-graft-maleimide-terminated polyurethane (EGMPU) based on poly (butylene adipate) (EGMPU(PBA)) and poly(propylene oxide) (EGMPU(PPG)) as a coupling agent to synthesize graft interpenetrating polymer networks of bismaleimide (BMI) and the diglycidyl ether of bisphenol A (epoxy) (BMI/epoxy/graft(EGMPU)-IPN). Infrared (IR) analysis was performed to characterize the coupling agents EGMPU. The stress-strain properties of the BMI/epoxy/graft(EGMPU)-IPNs were studied. Dynamic mechanical analysis (DMA) showed that the EGMPU(PBA) coupling agent has better grafting effect due to higher compatibility between the BMI and epoxy networks than the EGMPU(PPG) coupling agent in BMI/epoxy/graft(EGMPU)-IPNs.
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Han, JL., Li, KY. Graft Interpenetrating Polymer Networks of Bismaleimide and Epoxy Based on Maleimide-Terminated Polyurethane-Grafted Epoxy. Polym J 31, 401–405 (1999). https://doi.org/10.1295/polymj.31.401
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DOI: https://doi.org/10.1295/polymj.31.401