Preparation of the Biphenyl-containing Polyarylethers with Highly Fluorinated Contents

doi:10.7503/cjcu20170197

Chem. J. Chinese Universities ›› 2017, Vol. 38 ›› Issue (7): 1107.doi: 10.7503/cjcu20170197

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Preparation of the Biphenyl-containing Polyarylethers with Highly Fluorinated Contents

ZHANG Hanyu¹, LUO Wu², LIU Zhenchao¹, LI Xiaobai¹, Guan Shaowei¹, LIU Baijun¹

1. College of Chemistry, Jilin University, Changchun 130012, China;
2. China Nuclear Power Engineering Co. Ltd., Shenzhen 518049, China

Received:2017-03-31 Revised:2017-06-07 Online:2017-07-10 Published:2017-06-07
Supported by:
Supported by the International Science and Technology Cooperation Program of Changchun City, China(No.14GH003) and the Science and Technology Development Plan of Jilin Province, China(Nos. 20170101110JC, 20140204016GX).

Abstract

Abstract:

A trifluoromethyl-activated dichloro-monomer was synthesized via a two-step procedure including a formation of (4-chloro-3-trifluoromethyl)phenyldiazonium chloride and a coupling reaction. Derived from the dichloro-monomer, five fluorinated polyarylethers were prepared via a nucleophilic aromatic substitution polycondensation in the presence of K₂CO₃. The fluorinated polymers exhibited excellent thermal stability, and the temperatures at a 5% mass loss(T_d,5%) of several polymers were above 500 ℃. A highly fluorinated polyarylether had strong hydrophobicity, judging by its contact angle of 104.7°. Also, these fluorine-containing polymers showed low refractive index and low dielectric constants. These highly-fluorinated polymers may be potential materials using as high-temperature coatings or thin films in optical and microelectronic fields.

Key words: Polyaryether, Fluorine-containing polymer, Solubility, Dielectric constant

CLC Number:

O631

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ZHANG Hanyu, LUO Wu, LIU Zhenchao, LI Xiaobai, Guan Shaowei, LIU Baijun. Preparation of the Biphenyl-containing Polyarylethers with Highly Fluorinated Contents[J]. Chem. J. Chinese Universities, 2017, 38(7): 1107.

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Preparation of the Biphenyl-containing Polyarylethers with Highly Fluorinated Contents

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