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Polymers 2017, 9(4), 122; doi:10.3390/polym9040122

Direct Synthesis of Branched Carboxylic Acid Functionalized Poly(1-octene) by α-Diimine Palladium Catalysts

1
School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
2
Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Marinos Pitsikalis
Received: 28 February 2017 / Revised: 22 March 2017 / Accepted: 23 March 2017 / Published: 27 March 2017
(This article belongs to the Special Issue Metal Complexes-Mediated Catalysis in Polymerization)
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Abstract

In this work, we studied propylene polymerization using some α-diimine palladium catalysts with systematically varied ligand sterics. In propylene polymerization, the ligand steric effect exhibits significant variations on the catalytic activity, polymer molecular weight, and branching density. However, the regio control for the polymer microstructure is poor. Furthermore, copolymerization of 1-octene with the highly challenging and biorenewable comonomer acrylic acid was investigated. High copolymer molecular weights and high comonomer incorporation ratios could be achieved in this system. This study provides a novel access for the direct synthesis of branched carboxylic acid functionalized polyolefins. View Full-Text
Keywords: α-diimine; palladium; α-olefins (co)polymerization; acrylic acid; steric effect α-diimine; palladium; α-olefins (co)polymerization; acrylic acid; steric effect
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Guo, L.; Zou, C.; Dai, S.; Chen, C. Direct Synthesis of Branched Carboxylic Acid Functionalized Poly(1-octene) by α-Diimine Palladium Catalysts. Polymers 2017, 9, 122.

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