A Topology‐Defined Polyester Elastomer from CO2 and 1,3‐Butadiene: A One‐Pot‐One‐Step “Scrambling Polymerizations” Strategy
A Topology‐Defined Polyester Elastomer from CO2 and 1,3‐Butadiene: A One‐Pot‐One‐Step “Scrambling Polymerizations” Strategy
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拓扑 - 由 CO2 和 1,3 - 丁二烯定义的聚酯弹性体：One - Pot - One - Step - 加扰聚合 - 策略
DOI：
10.1002/anie.202213028
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Xufeng Ni
中科院分区：
文献类型：
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作者：
Kaihao Chen;Zhiqi Zhu;Tianwen Bai;Yixuan Mei;Tianlun Shen;Jun Ling;Xufeng Ni
利用CO2生产高分子材料，特别是烯烃材料，具有重要意义和挑战性。本文设计并实施了一种名为“混杂聚合”的新策略，用于CO2-和-1，3-丁二烯衍生的戊内酯，3-亚乙基-6-乙烯基四氢-2H-吡喃-2-酮（EVL）与ε-己内酯（CL）的共聚以制备聚酯。CL的阴离子开环聚合和EVL的共辄加成低聚分别发生以形成PCL和EVL低聚物。然后EVL低聚物通过酯交换插入PCL中，产生具有可调拓扑结构和组成的聚酯P（CL-co-EVL）。断裂伸长率> 600%的无细胞毒性和可降解聚酯网络可用作弹性体。我们首次提出了一种由CO2和烯烃制备聚酯弹性体的方法，并扩大了从可持续原料向聚合物材料转化的潜力。
It is significant and challenging to use CO2to produce polymeric materials, especially with olefins. Here, a novel strategy named “scrambling polymerizations” is designed and performed for the copolymerization of a CO2‐and‐1,3‐butadiene‐derived valerolactone, 3‐ethylidene‐6‐vinyltetrahydro‐2H‐pyran‐2‐one (EVL), with ϵ‐caprolactone (CL) to prepare polyesters. Anionic ring‐opening polymerization of CL and conjugated addition oligomerization of EVL take place individually to form PCL and EVL oligomers, respectively. Then EVL oligomers insert into PCL by transesterification resulting in polyester P(CL‐co‐EVL) with a tunable topology and composition. The non‐cytotoxic and degradable polyester network with elongation at break of >600 % can be used as an elastomer. We propose a method to provide polyester elastomers from CO2and olefins for the first time, and expand the potential of transformation from sustainable feedstocks to polymeric materials.