Release Time:2019-03-13  Hits:

Indexed by: Journal Article

Date of Publication: 2016-08-01

Journal: ACS CATALYSIS

Included Journals: Scopus、EI、SCIE

Volume: 6

Issue: 8

Page Number: 4907-4913

ISSN: 2155-5435

Key Words: 2-vinylpyridine; stereoselectivity; yttrium catalyst; coordination polymerization; DFT

Abstract: Poly(2-vinylpyridine) with highly isotactic (P-m = 0.97) and high-molecular-weight (similar to 10(5) g/mol) characteristics was obtained for the first time using novel yttrium bis(phenolate) ether catalysts. These catalysts also showed high activity and tolerance to low loadings. Computational studies and kinetic experiments provided a fundamental understanding of the initiation, propagation, and stereocontrol mechanism governing the polymerization reactions mediated by yttrium catalysts.