US EPA

3860612 

Journal Article 

Novel perfluoropolyethers containing 2,2,4-trifluoro-5-trifluoromethoxy-1,3-dioxole blocks: synthesis and characterization 

Avataneo, M; Navarrini, W; De Patto, U; Marchionni, G 

2009 

Yes 

Journal of Fluorine Chemistry
ISSN: 0022-1139
EISSN: 1873-3328 

130 

10 

933-937 

10.1016/j.jfluchem.2009.07.007 

WOS:000271345400011 

Peroxidic perfluoropolyethers (PFPEs) are industrial intermediates used by Solvay Solexis for the preparation of different classes of (per)fluoropolyethers (Fomblin (R), Galden (R), Solvera (R), Fluorolink (R)). The chemistry of these peroxidic compounds has been recently exploited for the synthesis of novel PFPE block copolymers. In the present work we report the synthesis, the structural and physical-chemical characterization of block copolymers obtained by the reaction of peroxidic PFPEs with 2,2,4-trifluoro-5-trifluoromethoxy-1,3-dioxole, a cyclic homopolymerizable perfluoroolefin. These block copolymers combine the most attractive properties of the PFPEs, like the excellent lubrication, the high thermal stability and the optical transparency, with new specific properties which are related to the perfluorodioxolenic blocks. (C) 2009 Elsevier B.V. All rights reserved. 

Peroxidic perfluoropolyether; Fluorinated copolymer; 2,2,4-trifluoro-5-trifluoromethoxy-1,3-dioxole; Optical transparency