Towards Truly Sustainable Polymers: A Metal-Free Recyclable Polyester from Biorenewable Non-Strained -Butyrolactone
Towards Truly Sustainable Polymers: A Metal-Free Recyclable Polyester from Biorenewable Non-Strained -Butyrolactone
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DOI：
10.1002/anie.201601092
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发表时间：
2016-03-18
影响因子：
16.6
通讯作者：
Chen, Eugene Y. -X.
中科院分区：
文献类型：
--
作者：
Hong, Miao;Chen, Eugene Y. -X.
报道了生物可再生的不可聚合丁内酯（-BL）首次有效地聚合成高分子量无金属可回收聚酯。发现超强碱tert-Bu-P-4通过-BL的去质子化直接引发这种聚合反应，产生反应性烯醇化物物种。当与合适的醇组合时，基于叔丁基-P-4的系统将-BL快速转化为具有高单体转化率（高达90%）、高分子量（M-n高达26.7kgmol（-1））和完全可再循环性（定量-BL回收）的聚酯。
The first effective organopolymerization of the biorenewable non-polymerizable -butyrolactone (-BL) to a high-molecular-weight metal-free recyclable polyester is reported. The superbase tert-Bu-P-4 is found to directly initiate this polymerization through deprotonation of -BL to generate reactive enolate species. When combined with a suitable alcohol, the tert-Bu-P-4-based system rapidly converts -BL into polyesters with high monomer conversions (up to 90%), high molecular weights (M-n up to 26.7kgmol(-1)), and complete recyclability (quantitative -BL recovery).