Photopolymerization of maleimide perfluoropolyalkylethers without a photoinitiator. Issue 6 (21st December 2018)

• Record Type: Journal Article
• Authors: Bonneaud, Céline; Burgess, Julia M.; Bongiovanni, Roberta; Joly‐Duhamel, Christine; Friesen, Chadron M.
• Is Part Of: Journal of polymer science. Volume 57:Issue 6(2019)
• Page Start: 699
• Page End: 707
• Publication Date: 2018-12-21
• Subjects: perfluoropolyalkylethers -- photopolymerization -- maleimides -- omniphobicity; 547
• DOI: 10.1002/pola.29311
• Languages: English
• ISSNs: 0887-624X

Abstract

ABSTRACT: Perfluoropolyalkylethers derived from hexafluoropropylene oxide were functionalized with maleimide groups. Irradiated by UV‐light, the new maleimide macromonomers demonstrated very fast polymerization kinetics with a curing time as fast as 8 s. The effect on photopolymerization of different features such as the molecular weight of the fluorinated chain and the chain length of the hydrogenated spacer were studied, as well as the influence of the type of photoinitiator and the presence of air. Thermal and surface properties of the UV‐cured polymers were examined and were typical to fluoropolymers in view of water–oil repellent coatings. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem.2019, 57, 699–707 Abstract : The polymerization under UV‐light of maleimide perfluoropolyalkylethers (PFPAEs) is very fast. The example shown in the figure demonstrates a curing time of 8 seconds. After UV‐curing, the maleimide PFPAEs reveal excellent thermal stability. Moreover, hydrophobicity and oleophobicity are exhibited with contact angle values up to 124° with water and up to 82° with hexadecane.