MOLECULAR ORDERING IN LANGMUIR-BLODGETT-FILMS OF TRIPLE CHAINED AMMONIUM AMPHIPHILES CONTAINING MESOGENIC MOIETIES

被引:8
作者
EVERAARS, MD [1 ]
MARCELIS, ATM [1 ]
SUDHOLTER, EJR [1 ]
机构
[1] WAGENINGEN UNIV AGR,ORGAN CHEM LAB,6703 HB WAGENINGEN,NETHERLANDS
关键词
AMPHIPHILES; LANGMUIR-BLODGETT FILMS; MESOGENIC MOIETIES; MOLECULAR ORDERING;
D O I
10.1016/0927-7757(95)03251-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A number of triple chained ammonium amphiphiles have been synthesized with cyano- and nitrobiphenyl, and azobenzene mesogenic moieties at the termini of their hydrophobic chains. These compounds exhibit liquid crystalline behaviour and form stable monolayers at the water-air interface. The monolayers give Z-type transfer onto hydrophilic quartz. However, the transferred material reorganizes and the morphology of the film appears to depend on the thermotropic properties. For the cyanoazobenzene containing Langmuir-Blodgett multilayers, molecular reorganization is observed upon irradiation with UV light or upon heating to give well ordered, centrosymmetric, homeotropically aligned assemblies.
引用
收藏
页码:117 / 126
页数:10
相关论文
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YOKOYAMA S, 1993, LANGMUIR, V19, P1086