Nickel Catalyst with a Hybrid P, N Ligand for Kumada Catalyst Transfer Polycondensation of Sterically Hindered Thiophenes.
Nickel Catalyst with a Hybrid P, N Ligand for Kumada Catalyst Transfer Polycondensation of Sterically Hindered Thiophenes.
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DOI：
10.1021/mz500282j
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发表时间：
2014-06
影响因子：
5.8
通讯作者：
Daniel Schiefer;T. Wen;Yingyi Wang;Pierre Goursot;H. Komber;R. Hanselmann;P. Braunstein;G. Reiter-G.
中科院分区：
文献类型：
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作者：
Daniel Schiefer;T. Wen;Yingyi Wang;Pierre Goursot;H. Komber;R. Hanselmann;P. Braunstein;G. Reiter-G.
首次成功地将一种含P，N杂化配体的高活性镍催化剂用于含空间要求很高侧基的噻吩类单体的聚合。这种催化剂的性能是商业化的标准催化剂所无法达到的。因此，具有特殊侧链结构的聚噻吩可制得具有预定相对分子质量、低分散性和高区域规整性的聚合物，这使得能够在没有π-π相互作用的情况下制备用于研究各向异性光电性质的各种大的结晶超结构。
A highly active nickel catalyst with a hybrid P,N ligand is successfully used for the first time for the polymerization of a thiophene monomer with sterically very demanding side groups. The performance of this catalyst is by far not achievable with commercially available standard catalysts. Polythiophenes with special side chain patterns can thus be made with predetermined molecular weight, low dispersity, and high regioregularity, which enable the preparation of various large crystalline superstructures for the investigation of anisotropic optoelectronic properties in the absence of π-π interactions.