作者:David R. Medeiros、Michael A. Hale、Raymond J. P. Hung、Jeffrey K. Leitko、C. Grant Willson
DOI:10.1039/a809842e
日期:——
Chiral, smectogenic pendant groups have been covalently attached to cyclic oligosiloxanes by hydrosilylation. These materials and the olefinic compounds from which they were derived exhibit ferroelectric behavior. The mesomorphic range, and in particular the S
C
* phase, of these oligomers is greatly enhanced relative to the vinylogous parents. The electro-optic and thermal properties, in addition to the synthetic procedures used to prepare these materials, are described in detail. These compounds are seen as potential precursors to liquid crystalline polymers with desirable processing capabilities.
手性、致密侧基已通过氢化硅烷化共价连接到环状低聚硅氧烷上。这些材料和衍生它们的烯烃化合物表现出铁电行为。介晶范围,特别是 S
C
这些低聚物的*相相对于插烯亲本大大增强。除了用于制备这些材料的合成程序之外,还详细描述了电光和热性能。这些化合物被视为具有理想加工能力的液晶聚合物的潜在前体。