Title: A BIOBASED IMINE DILUENT FOR BISMALEIMIDE: SYNTHESIS, BLEND CHARACTERIZATION, AND CURE CHALLENGES

Authors: Daniel C. Struble, Sean T. Ryan, John M. Misasi

DOI: 10.33599/nasampe/s.23.0136

Abstract: The use of renewable resource derived chemicals in materials is one of the many needed methods to improve the sustainability, and potentially circularity, of high-performance composites. This research sought to utilize green chemistry principles to develop a biobased diluent that contained imine functionality and was able to cure into bismaleimide thermosets. The biobased imine diluent was synthesized from cinnamaldehyde and furfurylamine, and characterized via NMR and FTIR. The diluent was then mixed with an unformulated bismaleimide monomer at four concentrations to study the uncured properties as a function of imine diluent concentration. Cure characteristics from DSC (cure exotherm and endotherms), TGA (thermal degradation and char yield), and rheometry (complex viscosity) are reported. Finally, an analysis of the diluent’s degradation during cure is discussed in terms of TGA-FTIR and FTIR to better understand the degradation mechanism and limitations of this imine-containing diluent.

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Conference: SAMPE 2023

Publication Date: 2023/04/17

SKU: TP23-0000000136

Pages: 14

Price: $28.00