New monomer liquid crystals containing a chiral 2,2-or 2,3-disubstituted oxirane ring

被引：3

作者：

Galli, Giancarlo ^{[1
]}

Saliva, Barbara ^{[1
]}

Lotz, Andreas ^{[1
]}

Komitov, Lachezar ^{[2
]}

Scherowsky, Guenter ^{[3
]}

Chiellini, Emo ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56126 Pisa, Italy

[2] Chalmers Tech Univ, Dept Microelect & Nanosci, S-41296 Gothenburg, Sweden

[3] Tech Univ Berlin, Inst Organ Chem, D-10623 Berlin, Germany

来源：

DESIGNED MONOMERS AND POLYMERS | 2000年 / 3卷 / 04期

关键词：

Monomer liquid crystals; chiral monomers; oxirane ring; electro-optics; flexoelectric effect;

D O I：

10.1163/156855500750206311

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two new families of chiral monomers were synthesized which consisted of a spaced biphenyl core and a 2,3-disubstituted or 2,2-disubstituted oxirane ring. The former monomers formed liquid crystal mesophases, whereas the latter monomers did not generate any mesophases independent of the spacer lengths investigated. The mesogenic propensity was enhanced in chiral liquid crystals based on the biphenyl benzoate core and either oxirane ring. A linear electro-optic response was detected in the chiral nematic phase and was attributed to the flexoelectric eftect.

引用

页码：463 / 477

页数：15

共 22 条

[1] DEVICE PHYSICS OF THE SOFT-MODE ELECTRO-OPTIC EFFECT [J].