Smectic A liquid single crystal elastomers showing macroscopic in-plane fluidity
Smectic A liquid single crystal elastomers showing macroscopic in-plane fluidity
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DOI：
10.1002/marc.1997.030180201
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发表时间：
1997-02
影响因子：
4.6
通讯作者：
E. Nishikawa;H. Finkelmann;H. Brand
中科院分区：
文献类型：
--
作者：
E. Nishikawa;H. Finkelmann;H. Brand
本文描述了近晶A液晶单晶弹性体对垂直和平行于各层的应力作用下的力学响应。我们发现，垂直于层的静态模数比平行于层的模数大两个数量级，后者完全是由于交联剂的作用。在宏观上，当机械应力平行于薄膜时，近晶层的宽度不会缩小，而薄膜的长度增加了2倍，从而显示了近晶层的面内流动性。
The mechanical response of a smectic A liquid single crystal elastomer (LSCE) to stress applied perpendicular and parallel to the layers is described. We find that the static modulus perpendicular to the layers is two orders of magnitude larger than the modulus parallel to the layer direction, where the latter is completely due to the crosslinking. Macroscopically the width of the smectic A LSCE does not shrink when a mechanical stress is applied parallel to the layers while the length of the film increases by a factor of 2 thus demonstrating the in-plane fluidity of the smectic layering.