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课题组刘东涛副研究员等人的研究成果在Angewande chemie上发表,恭喜!
来源:崔冬梅研究员个人网站 发布日期:2017-06-29


Angew. Chem. Int. Ed., 201756(10), 2714-2719 



Abstract

Styrene underwent unprecedented coordination–insertion copolymerization with naked polar monomers (ortho-/meta-/para-methoxystyrene) in the presence of a pyridyl methylene fluorenyl yttrium catalyst. High activity (1.26×106 g?molY?1 h?1) and excellent syndioselectivity were observed, and high-molecular-weight copolymers (24.6×104 g?mol?1) were obtained. The insertion rate of the polar monomers could be adjusted in the full range of 0–100?% simply by changing the loading of the polar styrene monomer. Strikingly, the copolymers had tapered, gradient, and even random sequence distributions, depending on the position of the polar methoxy group on the phenyl ring and thus on its mode of coordination to the active metal center, as shown by tracking the polymerization process and DFT calculations.


文章链接:http://onlinelibrary.wiley.com/doi/10.1002/anie.201611066/full


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