The mesophase behavior and structure of 1, 1-bis (perfluoroalkyl)-2-vinylcyclopropane polymers

E Martinelli, E Pucci, G Galli, B Gallot

Index: Martinelli, Elisa; Pucci, Elena; Galli, Giancarlo; Gallot, Bernard Molecular Crystals and Liquid Crystals, 2007 , vol. 465, # 1 p. 81 - 92

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Abstract

We introduced new poly (2-vinylcyclopropane) s carrying two perfluoroalkyl mesogens per repeat unit at the same main chain carbon atom. The relative lengths of the hydrocarbon- fluorocarbon segments were varied. Copolymers with a non-mesogenic 2-vinylcyclopropane were also prepared. X-ray diffraction studies proved the formation of smectic mesophases, the type of which depended on the chemical nature of the polymers: SmB2, SmI2 (or ...

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