Effects of polymer micro-structures on the thermo-optical properties of a flexible soft-mater film based on liquid crystals / polymer composite
Effects of polymer micro-structures on the thermo-optical properties of a flexible soft-mater film based on liquid crystals / polymer composite
复制标题
聚合物微结构对基于液晶/聚合物复合材料的柔性软材料薄膜热光性能的影响
DOI：
10.1016/j.polymer.2018.05.044
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发表时间：
2018-06-20
期刊：
影响因子：
4.6
通讯作者：
Yang, Huai
中科院分区：
文献类型：
--
作者：
Liang, Xiao;Chen, Mei;Yang, Huai
有机热致变色材料（例如水凝胶、共轭聚合物）是节能窗户、温度指示器和装饰物品等应用的有希望的候选者。与传统的热致变色材料相比，液晶（LC）/聚合物复合材料在大面积制造和易于加工方面更具优势。然而，聚合物微结构对这些液晶基热致变色材料的热光性能的影响仍不清楚，这对于高机械强度和优异的光学性能至关重要。为此，本文首次基于聚合物/温度响应液晶软物质复合材料对聚合物微框架与热光性能之间的关系进行了系统研究，最终在不影响调制对比度的情况下将复合材料的机械强度提高到约110 N/cm(2)，这为调控新型软物质复合材料的光学性能走向实际应用提供了新的见解。 (C) 2018 Elsevier Ltd. 保留所有权利。
Organic thermochromic materials (e.g. hydrogels, conjugated polymers) are promising candidates for applications, such as energy-saving windows, temperature indicators and decoration items. Compared with the traditional thermochromic materials, liquid crystals (LC)/polymer composites are more advantageous in large-area manufacturing and facile processing. However, the effects of polymer micro-structures on the thermal-optical properties of these LC based thermochromic materials, which is crucial for both high mechanical strength and excellent optical performance, still remain unclear. To this end, herein a systematic investigation on the relationships between the polymer micro-frameworks and the thermal-optical properties is conducted for the first time based on a soft-matter composite of polymer/temperature-responsive liquid crystals, and finally the mechanical strength of the composite material is enhanced to be as high as similar to 110 N/cm(2), without compromising the modulation contrast, which enlightens new insights in regulating the optical-properties of novel soft-matter composite materials towards practical applications. (C) 2018 Elsevier Ltd. All rights reserved.