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作 者:黄鑫 赵婷婷 肖敏 王拴紧 韩东梅 黄盛 孟跃中 Xin Huang;Tingting Zhao;Min Xiao;Shuanjin Wang;Dongmei Han;Sheng Huang;Yuezhong Meng(Key Laboratory of Low-carbon Chemistry&Energy Conservation of Guangdong Province,School of Materials Science and Engineering,Sun Yat-sen University,Guangzhou 510006,China)
机构地区:[1]中山大学材料科学与工程学院,广东省低碳化学与过程节能重点实验室,广州510006
出 处:《科学通报》2024年第20期2923-2934,共12页Chinese Science Bulletin
基 金:国家自然科学基金(22179149);山东联欣环保科技有限公司项目(HT-99982020-0538);茂名天源石化有限公司项目(HT-99982021-0264);河北中煤旭阳能源有限公司项目(HT-99982021-0681);沧州临港丰亚化工有限公司项目(HT-99982022-0067);中化泉州能源科技有限公司项目(HT-99982023-0011)资助。
摘 要:二氧化碳(CO_(2))是一种来源丰富、价格低廉、无毒的可再生资源,以其为原料合成高附加值产品是二氧化碳固定领域备受关注的课题.其中,利用二氧化碳与环氧化物的共聚反应合成二氧化碳基聚碳酸酯多元醇,进而制备二氧化碳基聚氨酯材料,这一路线作为绿色高分子化学的重要组成部分,正成为符合国家碳中和目标的前沿热点.本文主要介绍了近年来二氧化碳基聚碳酸酯多元醇的合成方法,着重关注链转移剂存在下二氧化碳和环氧化物不朽聚合成聚碳酸酯多元醇的研究进展,从非均相催化剂、均相金属催化剂和均相非金属催化剂三个方面进行分类和综述,并比较了它们的优缺点.同时,重点探讨了二氧化碳基多元醇在环保型热塑性聚氨酯、水性聚氨酯、发泡材料等领域的广泛应用,并对其未来发展趋势进行了预测.The copolymerization of carbon dioxide and epoxides is utilized to synthesize carbon dioxide-based polycarbonate polyols,which are used to prepare carbon dioxide-based polyurethane materials. This approach is becoming an integral part ofgreen polymer chemistry. It is also at the forefront of the national carbon neutrality strategy. This review primarily focuseson the synthesis methods of carbon dioxide-based polycarbonate polyols in recent years. Emphasis is placed on theresearch progress of immortal polymerization of carbon dioxide and epoxides in the presence of chain transfer agents,which is further classified and reviewed based on heterogeneous catalysts, homogeneous metal catalysts, and homogeneousnon-metallic catalysts. Furthermore, the extensive applications of carbon dioxide-based polyols in environmentallyfriendly polyurethanes and other fields are discussed, and the future development trends are predicted. Carbon dioxidebased(CO_(2)-based) copolymers as environmentally friendly materials are highly promising due to their excellentbiodegradability. These copolymers effectively utilize carbon dioxide gas, which is abundant, non-toxic, and cost-effective,as one of their raw materials. Given that CO_(2) is emitted as a waste gas in numerous economic activities, leading to globalwarming, the chemical fixation of CO_(2) presents a compelling and effective approach to alleviating environmental andenergy pressures. The direct utilization of CO_(2) in the production of degradable low molecular weight polycarbonate polyolsor oligo(carbonate-ether) polyols via epoxides/CO_(2) copolymerization has attracted much attention to both academicresearches and industrial productions over the past decades due to the following advantages: First, there is no toxicphosgene generated, so it is totally eco-friendly;second, CO_(2) is one of the main and renewable materials to reducedependence on petroleum resources;third, CO_(2) as feedstocks is abundant, and inexpensive, which cuts down the cost ofproduced polyurethane (PU). Reg
关 键 词:二氧化碳 环氧化物 催化剂 聚碳酸酯多元醇 聚氨酯
分 类 号:TQ323.8[化学工程—合成树脂塑料工业]
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