Synthesis of polycarbonate polyol-based non-isocyanate polyurethane
발표자
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초록
내용
Mitigating global climate change while creating economic opportunities and providing affordable, secure, resilient, and reliable clean energy is one of the preeminent challenges of our time. Carbon capture, utilization, and storage has been considered as an important part of economically sustainable route to the emissions cuts needed to limit global warming. We have developed a promising approach for the synthesis of non-isocyanate polyurethane(NIPU) using polycarbonate polyol precursors. The polycarbonate polyols were first synthesized via terpolymerization of CO2 with cyclohexene oxide and vinyl cyclohexene oxide using a double metal cyanide catalyst. Then, the cyclic carbonate-terminated derivatives were prepared via epoxidation and carbonation of the polycarbonate containing vinyl groups. The precursors were then reacted with amine to produce NIPUs. The intermediates and resultant NIPUs were characterized by nuclear magnetic resonance spectroscopy, and gel permeation chromatography.