Mechanochromic polymer blends
Mechanochromic polymer blends
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DOI：
10.1039/c0jm03653f
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发表时间：
2011-01-01
影响因子：
--
通讯作者：
Ruggeri, Giacomo
中科院分区：
文献类型：
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作者：
Pucci, Andrea;Ruggeri, Giacomo
机械致色聚合物共混物，即对机械刺激具有光学响应性的聚合物共混物，近年来引起了人们的极大兴趣并取得了重大进展。据报道，各种显色材料由功能染料与聚合物链共价连接或物理分散在连续的大分子基质中，后者似乎是这些材料工业规模扩大的更可持续的途径。本文考察了不同热塑性聚合物与非共价结合的聚合色染料制备的各种机械致变色材料的性能。更具体地说，介绍了光学现象的一般机制，并提出了用于获得显色材料的不同方法，并考虑了染料特性和聚合物特性。混合组分性质的组合通常会导致材料显色响应性的巨大差异。最后对这类聚合物器件作为一种新型先进材料的应用进行了评述和讨论，并对其发展前景进行了展望。
Mechanochromic polymer blends, i.e. polymer blends characterised by optical responsiveness to mechanical stimuli, have evoked major interest and experienced significant progress in recent years. Various examples are reported of chromogenic materials composed of a functional dye covalently linked to the polymer chains or physically dispersed in the continuous macromolecular matrix, the latter appears to be a more sustainable route for the industrial scale-up of these materials. This feature article examines the properties and performances of various mechanochromic materials prepared by using different thermoplastic polymers with non-covalently incorporated aggregachromic dyes. More specifically, the general mechanism underlying the optical phenomenon is introduced and the different approaches used to obtain chromogenic materials are presented and discussed considering both dye features and polymer characteristics. The combination of the properties of the blend components can often result in drastic differences in the material chromogenic responsiveness. The article concludes commenting and discussing the application of these kind of polymer devices as a new type of advanced materials and the perspective thereof.