NEW FLUORINATED POLYSILOXANES CONTAINING AN ESTER FUNCTION IN THE SPACER .1. SYNTHESIS AND CHARACTERIZATION

Citation
E. Beyou et al., NEW FLUORINATED POLYSILOXANES CONTAINING AN ESTER FUNCTION IN THE SPACER .1. SYNTHESIS AND CHARACTERIZATION, Journal of polymer science. Part A, Polymer chemistry, 32(9), 1994, pp. 1673-1681
Citations number
18
Categorie Soggetti
Polymer Sciences
ISSN journal
0887624X
Volume
32
Issue
9
Year of publication
1994
Pages
1673 - 1681
Database
ISI
SICI code
0887-624X(1994)32:9<1673:NFPCAE>2.0.ZU;2-N
Abstract
Unsaturated perfluoroalkyl esters derived from undecylenic acid: CH2=C H-(CH2)8-COO-CH2-CH2-R(F) (with R(F) = C6F13, 2a and R(F) = C8F17, 2b) and C8F17-(CH2)10-COO-CH2-CH=CH2, 2c were prepared with excellent yie lds. Their hydrosilylation by methylhydrodimethylsiloxane copolymers o f various Si - H contents gives new fluorinated polysiloxanes which we re examined by H-1- and C-13-NMR, GPC, differential scanning calorimet ry, and optical polarizing microscopy. Polymers derived from compounds 2a and 2b exhibit mesomorphic structures. (C) 1994 John Wiley & Sons, Inc.