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首页> 外文期刊>Journal of Applied Polymer Science >Photoinduced birefringence properties of poly-Schiff bases containing triphenylamine
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Photoinduced birefringence properties of poly-Schiff bases containing triphenylamine

机译：含三苯胺的多席夫碱的光诱导双折射特性

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摘要

Anisotropy was induced in poly-Schiff bases containing triphenylamine with linearly polarized light at 488 nm. Both writing and relaxation processes were described with a biexponential function. The alignment process involved two response modes: a fast response mode and a slow one. The fast response mode was associated with angular-dependent trans-cis photoisomerization, whereas the slow one was attributed to the position adjustment of the rigid main chains used to obtain well-aligned monodomains. The writing rate increased with an increase in the light intensity at a low intensity of the irradiation light. Structural factors such as main-chain rigidity seemed to play important roles in the remaining stored information. The two polymers had large photoinduced birefringence values (0.01 and 0.0015, respectively). (C) 2004 Wiley Periodicals, Inc.
机译：在含有三苯胺的聚席夫碱中，在488 nm的线性偏振光下诱发了各向异性。书写和松弛过程都用双指数函数描述。对齐过程涉及两种响应模式：快速响应模式和慢速响应模式。快速响应模式与角度依赖性反式顺式光异构化相关，而慢响应模式则归因于用于获得排列良好的单畴的刚性主链的位置调节。在低照射光强度下，写入率随着光强度的增加而增加。主链刚度等结构性因素似乎在剩余的存储信息中起着重要作用。两种聚合物具有较大的光致双折射值（分别为0.01和0.0015）。 （C）2004年Wiley Periodicals，Inc.

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