New Ferroelectric Liquid Crystal with Large Spontaneous Polarization
New Ferroelectric Liquid Crystal with Large Spontaneous Polarization
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具有大自发极化的新型铁电液晶
DOI：
10.1143/jjap.28.l1269
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发表时间：
1989
影响因子：
1.5
通讯作者：
Mamoru Yamane
中科院分区：
文献类型：
--
作者：
A. Yoshizawa;I. Nishiyama;Mitsuo Fukumasa;T. Hirai;Mamoru Yamane
本文报道了新型铁电液晶4-（2-甲基烷醇基）苯基4′-烷基氧基联苯-4-羧酸盐的制备及其物理性质的测定。观察到自发极化的大小与烷基链长度的关系。4-（2-甲基辛氧基）苯基4′-辛氧基联苯-4-羧酸盐表现出极大的自发极化，在62℃时为293 nC/cm2，在39℃时为403 nC/cm2。
We report the preparation of new ferroelectric liquid crystals, 4-(2-methylalkanoyl)phenyl 4'-alkyloxybiphenyl-4-carboxylates, and the measurements of their physical properties. The dependence of the magnitude of the spontaneous polarization on the alkyl chain length is observed. 4-(2-Methyloctanoyl)phenyl 4'-octyloxybiphenyl-4-carboxylate shows extremely large spontaneous polarization, 293 nC/cm2 (at 62°C) and 403 nC/cm2 (at 39°C).