Normal photochromism of spiropyran in montmorillonite interlayer
Normal photochromism of spiropyran in montmorillonite interlayer
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DOI：
10.1016/j.colsurfa.2007.10.036
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发表时间：
2008-03-20
影响因子：
5.2
通讯作者：
Einaga, Yasuaki
中科院分区：
文献类型：
--
作者：
Saso, Naoki;Yamamoto, Takashi;Einaga, Yasuaki
采用LB法和插层法制备了螺吡喃-蒙脱石杂化材料。使用粘土矿物的LB方法可以应用于制备由非两亲性螺吡喃组成的杂化膜。结果表明，杂化LB膜具有层状结构，并在层状结构没有任何变化的情况下表现出“正常的光致变色”。在插层方法的情况下，杂化化合物也具有层状结构。有趣的是，插层杂化化合物表现出“反向光致变色”。有人建议，不同的过程中形成的层状结构的影响所观察到的光致变色。(C)2007 Elsevier B. V.保留所有权利。
Spiropyran-montmorillonitehybrid materials have been fabricated by the Langmuir-Blodgett(LB) and an intercalation method. The LB method using clay minerals could be applied to fabricate hybrid ultrathin films consisting of a non-amphiphilic spiropyran. It is confirmed that hybrid LB films possess the layered structure and exhibit "normal photochromism" without any changes in the layered structure. In case of the intercalation method, hybrid compounds also possess the layered structure. Interestingly, intercalation hybrid compounds exhibit "reverse photochromism". It is suggested that a different process in formation of the layered structure influences the observed photochromism. (C) 2007 Elsevier B.V. All rights reserved.