The synthesis and characterization of side-chain liquid crystalline (LC) polyacrylates containing para-nitroazohenzene (Pn) as mesogenic groups were described. Homopolymers with 3 and 4 carbon atoms in the spacers were non-LC polymers; for homopolymers with 6 carbon atoms in the spacer, nematic LC b
β¦ LIBER β¦
Synthesis and properties of three novel series of monomers containing para -methoxyazobenzene as the mesogenic group
β Scribed by Wang, Guojie; Li, Min; Yu, Mingming; Guo, Chaowei; Chen, Xinfang; Li, Gao; Zhou, Enle
- Book ID
- 120494879
- Publisher
- Taylor and Francis Group
- Year
- 2000
- Tongue
- English
- Weight
- 305 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0267-8292
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## Abstract **Summary:** 1β(2β²,2β²,3β²,3β²βTetracyanocyclopropyl)β3,4βdiβ2β²βhydroxyethoxybenzene (4) was prepared by the reaction of bromomalononitrile with 3,4βdiβ(2β²βhydroxyethoxy)benzylidenemalononitrile (3). The dipole moment of diol 4, calculated by the ASEDβMO method, was 4.01 D. Diol 4 was cond