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Issue 26, 2019
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An efficient and mild route to highly fluorinated polyolefins via copolymerization of ethylene and 5-perfluoroalkylnorbornenes

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Abstract

A series of fluorinated polyolefins have been efficiently synthesized via the copolymerization of ethylene with 5-(perfluoro-n-alkyl)norbornenes by employing a class of [ONS] titanium catalysts, which possess an open coordination space environment and exhibit excellent tolerance towards fluorine atoms and excellent catalytic activity (up to 1.60 × 106 g (mol h atm)−1). Fluorinated polyolefins with high fluorine contents (up to 44.0 wt%) and high molecular weights (3.5–15.9 × 104 g mol−1) could be obtained under mild conditions. DSC analysis indicated that incorporation of the fluorinated comonomers into polyethylene significantly influences the crystallinity of the polymers (Tm), while it has little influence on the polymer stability.

Graphical abstract: An efficient and mild route to highly fluorinated polyolefins via copolymerization of ethylene and 5-perfluoroalkylnorbornenes

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Article information


Submitted
03 Jan 2019
Accepted
20 May 2019
First published
23 May 2019

Polym. Chem., 2019,10, 3604-3609
Article type
Paper

An efficient and mild route to highly fluorinated polyolefins via copolymerization of ethylene and 5-perfluoroalkylnorbornenes

L. Ji, J. Liu, X. Wang, J. Li, Z. Chen, S. Liao, X. Sun and Y. Tang, Polym. Chem., 2019, 10, 3604
DOI: 10.1039/C9PY00009G

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