| 1 | Author | G. Erhard, Koßmehl* Bettina Labahn | Requires cookie* |
| Title | Liquid Crystalline Compounds in the Thiophene Series, Part 12+ Synthesis and Characterization of Side Chain Polysiloxanes with Low Transition Temperatures  | ||
| Abstract | Polysiloxanes as side chain polymers containing the 2.2'-bithiophene unit, hexyl and octyl terminal groups and spacer units with 3, 5. 6 and 10 m ethylene groups were prepared and characterized. These polymers have monotropic liquid crystalline phases with transition tem peratures below 0 °C (e. g. for polymer 6p: isotropic — * ■ liquid crystalline transition: -20 °C; liquid crystalline — * ■ solid transition: -43 °C). Polymers with a trimethylene spacer group must contain an octyl terminal group for forming liquid crystalline phase; a hexyl group does not form such a phase. | ||
| Reference | Z. Naturforsch. 51b, 286—2 (1996); received July 7 1995 | ||
| Published | 1996 | ||
| Keywords | Liquid Crystalline Thiophene Compounds, Liquid Crystalline Polysiloxanes, Bithiophene Derivatives, Liquid Crystalline Side Chain Polymers | ||
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