Living coordination-insertion copolymerization of 1-hexene and ligated α-olefins using an α-diimine nickel catalyst and preparation of metal-ligand coordination crosslinked polymers
Living coordination-insertion copolymerization of 1-hexene and ligated α-olefins using an α-diimine nickel catalyst and preparation of metal-ligand coordination crosslinked polymers
复制标题
α-二亚胺镍催化剂1-己烯与配位α-烯烃活性配位插入共聚及金属配体配位交联聚合物的制备
DOI：
10.1039/d0py00224k
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发表时间：
2020-04-14
影响因子：
4.6
通讯作者：
Zhang, Xuequan
中科院分区：
文献类型：
--
作者：
Zhao, Wenpeng;Dong, Bo;Zhang, Xuequan
本文公开了一种通过1-己烯和连接α -烯烃的配位插入共聚获得含金属配体聚合物的新替代方法。为了克服杂原子对活性物质的失活，本研究采用了亲电性较低的晚期过渡金属配合物，并成功地实现了高效的共聚，得到了含有高达5.77%的苯并咪唑喹啉配体的聚（1-己烯）弹性体。此外，共聚表现出活性，表现出对分子量和分子量分布的控制能力。所获得的连接聚（1-己烯）弹性体与金属离子的配位产生了以配体-金属配合物为交联剂的聚合物网络，从而导致所得材料的机械性能显著增强。
A new alternative for accessing metal-ligand containing polymers via coordination insertion copolymerization of 1-hexene and ligated alpha-olefin is disclosed herein. To overcome the deactivation of active species by heteroatoms, the present study employed a less electrophilic late transition metal complex, and efficient copolymerizations were successfully achieved, giving rise to poly(1-hexene) elastomers containing a benzimidazolyl quinoline ligand up to 5.77%. Moreover, the copolymerization displayed a living nature, demonstrating a capability of control over the molecular weights and molecular weight distribution. Coordination of the obtained ligated poly(1-hexene) elastomers with metal ions produced polymer networks with the ligand-metal complexes as crosslinkers and thus led to a significant enhancement of the mechanical properties of the resultant materials.