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High Glass Transition Temperature Fluoropolymers for Hydrophobic Surface Coatings via RAFT Copolymerization

Citation

Rowe, M and Teo, GH and Horne, J and Al-Khayat, O and Neto, C and Thickett, SC, High Glass Transition Temperature Fluoropolymers for Hydrophobic Surface Coatings via RAFT Copolymerization, Australian Journal of Chemistry, 69 pp. 725-734. ISSN 0004-9425 (2016) [Refereed Article]

Copyright Statement

Journal compilation Copyright CSIRO 2016

DOI: doi:10.1071/CH15787

Abstract

The preparation of polymer thin films or surface coatings that display a static water contact angle >95° often requires hierarchical roughness features or surface functionalization steps. In addition, inherently hydrophobic polymers such as fluoropolymers often possess low glass transition temperatures, reducing their application where thermal stability is required. Herein, the first reported synthesis of 2,3,4,5,6-pentafluorostyrene (PFS) and N-phenylmaleimide (NMI) via reversible addition–fragmentation chain-transfer (RAFT)-mediated free radical polymerization is presented, with a view towards the preparation of inherently hydrophobic polymers with a high glass transition temperature. A suite of copolymers were prepared and characterized, and owing to the inherent rigidity of the maleimide group in the polymer backbone and π–π interactions between adjacent PFS and NMI groups, very high glass transition temperatures were achieved (up to 180°C). The copolymerization of N-pentafluorophenylmaleimide was also performed, also resulting in extremely high glass transition temperature copolymers; however, these polymers did not exhibit characteristics of being under RAFT control. Thin films of PFS-NMI copolymers exhibited a static contact angle ~100°, essentially independent of the amount of NMI incorporated into the polymer.

Item Details

Item Type:Refereed Article
Keywords:RAFT polymerization, copolymers, wettability, glass transition temperature
Research Division:Chemical Sciences
Research Group:Macromolecular and Materials Chemistry
Research Field:Synthesis of Materials
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Teo, GH (Mr Guo Teo)
Author:Horne, J (Dr James Horne)
Author:Thickett, SC (Dr Stuart Thickett)
ID Code:109378
Year Published:2016
Deposited By:Chemistry
Deposited On:2016-06-10
Last Modified:2017-03-14
Downloads:0

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