A liquid crystalline polysiloxane (LCP), having an ether bond in the spacer between its siloxane main chain and its mesogenic-group side chains, exhibited a very small electrorheological (ER) effect or increase in shear stress upon application of an electric field, but mixtures of the LCP and polydi
Electrorheological Effect of “Side-on” Liquid Crystalline Polysiloxane
✍ Scribed by Kosuke Kaneko; Toshiaki Kawai; Naotake Nakamura
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 237 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1439-4235
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📜 SIMILAR VOLUMES
Large increases in shear stress upon application of a 2.0 kV/mm electric field were observed in homogeneous fluids composed of polysiloxane-based liquid crystalline polymers (LCPs) in dimethyl silicone at a shear rate of 200 s-\*. The increase was largest (about 3,000 Pa at 50°C) with LCP consisting
## Abstract **Summary:** Biaxial side‐on cholesteric copolysiloxanes with laterally attached mesogenic groups were investigated in mixtures with a low molar mass liquid crystal. While mixtures with a low concentration of the polymer exhibit the conventional fingerprint texture, for concentrations a
Well-defined side-chain liquid-crystalline polysiloxanes
## Abstract A route to well‐defined side‐chain liquid‐crystalline polysiloxanes (ratio of weight‐to number‐average molar masses __M̄__~w~/__M̄__~n~ < 1.2 is reported. Anionic ring‐opening polymerization of pentamethylvinylcyclotrisiloxane yielded a poly(dimethylsiloxane‐__co__‐methylvinylsiloxane)