Synthesis and copolymerisation of fluorinated monomers bearing a reactive lateral group Part 21. Radical copolymerisation of vinylidene fluoride with 2-hydroperfluorooct-1-ene

The synthesis and the radical copolymerisation of 2-hydroperfluorooct-1-ene (HPO) with vinylidene fluoride (VDF), initiated by tertiobutyl peroxypivalate (TBPPI) at 75 8C, are presented. That fluorinated alkene (HPO) was synthesised in two steps starting from the thermal or redox telomerisation of V...

Full description

Saved in:
Bibliographic Details
Published inJournal of fluorine chemistry Vol. 126
Main Authors Otazaghine, Belkacem, Sauguet, L., Ameduri, Bruno
Format Journal Article
LanguageEnglish
Published Elsevier 01.07.2005
Subjects
Chemical Sciences
Polymers
Vinylidene fluoride
2-Hydroperfluorooct-1-ene
NMR spectroscopy
Radical copolymerisation
Reactivity ratio
Online AccessGet full text

Cover

More Information
Summary:The synthesis and the radical copolymerisation of 2-hydroperfluorooct-1-ene (HPO) with vinylidene fluoride (VDF), initiated by tertiobutyl peroxypivalate (TBPPI) at 75 8C, are presented. That fluorinated alkene (HPO) was synthesised in two steps starting from the thermal or redox telomerisation of VDF with C6F13I (after purification of the monoadduct compound by rectification) followed by a dehydroiodination in the presence of various alkalies. Their influences are discussed toward the yield of the reaction. The compositions of the resulting random-type copolymers were calculated by means of 19F NMR spectroscopy and allowed one to quantify the respective amounts of each monomeric unit in the copolymer. From the Tidwell and Mortimer method, the reactivity ratios (ri) of both comonomers for this copolymerisation were determined showing a higher incorporation of VDF: rVDF = 12.0 +- 3.0 and rF2C-CHC6F13 = 0:9 +- 0:4 at 74 °C.
ISSN:0022-1139
DOI:10.1016/j.jfluchem.2005.03.006