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A Novel Mechanochromic and Photochromic Polymer Film: When Rhodamine Joins Polyurethane
Advanced Materials ( IF 27.4 ) Pub Date : 2015-09-24 , DOI: 10.1002/adma.201503424
Zhijian Wang 1 , Zhiyong Ma 1 , Yao Wang 1 , Zejun Xu 1 , Yiyang Luo 1 , Yen Wei 2 , Xinru Jia 1
Advanced Materials ( IF 27.4 ) Pub Date : 2015-09-24 , DOI: 10.1002/adma.201503424
Zhijian Wang 1 , Zhiyong Ma 1 , Yao Wang 1 , Zejun Xu 1 , Yiyang Luo 1 , Yen Wei 2 , Xinru Jia 1
Affiliation
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A rhodamine‐based molecule, Rh‐OH, is synthesized. Rh‐OH exhibits a reversible mechanochromic luminescent character but a passivating response to UV light. An elastomeric polymer film based on polyurethane with embedded Rh‐OH is prepared via a polycondensation reaction. The film shows mechanochromic and photochromic properties with reversible color change, which originates from the isomerization of the Rh‐OH molecule from a twisted spirolactam in the ring‐closed form to a planarized zwitterionic structure in the ring‐open state.
中文翻译:
新型的机械变色和光致变色聚合物膜:若丹明加入聚氨酯时
合成了基于罗丹明的分子Rh-OH。Rh-OH具有可逆的机械变色发光特性,但对紫外线具有钝化响应。通过缩聚反应制备基于聚氨酯并嵌入Rh-OH的弹性体聚合物薄膜。该膜显示了机械变色和光致变色特性,具有可逆的颜色变化,这是由于Rh-OH分子从闭环形式的螺螺内酰胺转变为开环状态的平面两性离子结构所致。
更新日期:2015-09-24
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中文翻译:
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新型的机械变色和光致变色聚合物膜:若丹明加入聚氨酯时
合成了基于罗丹明的分子Rh-OH。Rh-OH具有可逆的机械变色发光特性,但对紫外线具有钝化响应。通过缩聚反应制备基于聚氨酯并嵌入Rh-OH的弹性体聚合物薄膜。该膜显示了机械变色和光致变色特性,具有可逆的颜色变化,这是由于Rh-OH分子从闭环形式的螺螺内酰胺转变为开环状态的平面两性离子结构所致。
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