Photoinduced Bending Behaviour of Cross-linked Liquid Crystalline Polymers with High Cross-linking Densities
Photoinduced Bending Behaviour of Cross-linked Liquid Crystalline Polymers with High Cross-linking Densities
复制标题
高交联密度交联液晶聚合物的光致弯曲行为
DOI：
10.1071/ch13526
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发表时间：
2014-04
影响因子：
1.1
通讯作者：
Yanlei Yu
中科院分区：
文献类型：
--
作者：
Jia Wei;Yanlei Yu;Yanlei Yu;Yanlei Yu
制备了具有长间隔基和偶氮苯发色团（不同浓度和不同位置）的高度交联液晶聚合物（CLCP）薄膜。探讨了各种因素对高 CLCP 光致弯曲行为的影响。与文献中报道的具有较短间隔基团和较小交联密度的薄膜相比，长间隔基团和高交联密度导致 CLCP 薄膜的弯曲速度要快得多。相对于侧链处的偶氮苯发色团，交联点处的偶氮苯发色团显着影响 CLCP 薄膜的光致弯曲行为。此外，与在交联点处掺入发色团的CLCP薄膜相比，偶氮苯发色团浓度的降低使在侧链处含有发色团的CLCP薄膜产生更快的弯曲和更大的光致应力。此外，偶氮苯浓度相对较低、厚度较小的CLCP薄膜在连续紫外照射下表现出最大弯曲后的反向弯曲，从而显示出该材料体系的光移动行为。
Highly cross-linked liquid crystalline polymer (CLCP) films with a long spacer and azobenzene chromophores (of varying concentrations and positioned differently) were prepared. The effects of various factors on the photoinduced bending behaviour of the highly CLCPs were explored. Long spacer groups and high cross-linking density resulted in considerably faster bending of the CLCP films relative to those reported in the literature that feature shorter spacer groups and smaller cross-linking densities. The azobenzene chromophores at the cross-linking points significantly influenced the photoinduced bending behaviour of the CLCP films relative to those at side chains. Furthermore, reduced concentrations of the azobenzene chromophores produced faster bending and larger photoinduced stress of the CLCP films that contained chromophores at the side chains as opposed to those incorporating chromophores at the cross-linking points. Moreover, the CLCP film with relatively low azobenzene concentration and small thickness exhibited bending in the reverse direction following maximum bending under continuous UV irradiation, thereby showing that photomobile behaviour of the material system.
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影响因子：
29.4
作者：
Taiki Yoshino;M. Kondo;J. Mamiya;Motoi Kinoshita;Yanlei Yu;T. Ikeda
通讯作者：
Taiki Yoshino;M. Kondo;J. Mamiya;Motoi Kinoshita;Yanlei Yu;T. Ikeda
影响因子：
5.8
作者：
A. Priimagi;Aki Shimamura;M. Kondo;T. Hiraoka;S. Kubo;J. Mamiya;Motoi Kinoshita;T. Ikeda;A. Shishido
通讯作者：
A. Priimagi;Aki Shimamura;M. Kondo;T. Hiraoka;S. Kubo;J. Mamiya;Motoi Kinoshita;T. Ikeda;A. Shishido
影响因子：
2.5
作者：
L. Angiolini
通讯作者：
L. Angiolini
影响因子：
15
作者：
Morimoto, Masakazu;Irie, Masahiro
通讯作者：
Irie, Masahiro
影响因子：
16.6
作者：
Kondo, M;Yu, YL;Ikeda, T
通讯作者：
Ikeda, T