ISSN:
0887-624X
Keywords:
polymethylhydrosiloxanes
;
hydrosilylation
;
perfluoroalkyl esters
;
liquid crystals
;
fluorinated polysiloxanes
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Unsaturated perfluoroalkyl esters derived from undecylenic acid: CH2=CH—(CH2)8—COO—CH2—CH2—RF (with RF=C6F13, 2a and RF=C8F17, 2b) and C8F17—(CH2)10—COO—CH2—CH=CH2, 2c were prepared with excellent yields. Their hydrosilylation by methylhydrodimethylsiloxane copolymers of various Si—H contents gives new fluorinated polysiloxanes which were examined by 1H- and 13C-NMR, GPC, differential scanning calorimetry, and optical polarizing microscopy. Polymers derived from compounds 2a and 2b exhibit mesomorphic structures. © 1994 John Wiley & Sons, Inc.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pola.1994.080320909
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