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二氧化碳共聚物利用温室气体二氧化碳为原料,具备良好的生物降解性能,成本相对较低,是一种理想的全降解型塑料品种。近年来,随着催化剂技术的发展,二氧化碳共聚物工业化进程已经起步,但催化剂成本较高、聚合周期较长、聚合物的热学和力学性能不理想等因素限制了其推广和应用。本实验室制备的无机物负载稀土三元催化剂,催化活性提高了36%。同时利用提高分子量、交联和制备区域规整聚合物的方法成功地提高了聚碳酸丙烯酯的分子间相互作用力,实现了二氧化碳共聚物的热学、力学性能的改善。
Carbon dioxide copolymer using carbon dioxide as raw material, with good biodegradability, the cost is relatively low, is an ideal full degradation of plastic varieties. In recent years, with the development of catalyst technology, the industrialization of carbon dioxide copolymer has been started, but the catalyst cost is higher, the polymerization cycle is longer, the thermal and mechanical properties of the polymer are not ideal and other factors have limited their promotion and application. The rare earth-loaded ternary catalyst prepared by our laboratory has a catalytic activity of 36%. At the same time, the method of increasing molecular weight, crosslinking and preparation of regio-structured polymers has been successfully used to improve the intermolecular interaction of poly (propylene carbonate) and improve the thermal and mechanical properties of carbon dioxide copolymer.