Surface Grafting of Paper with Photochromic Spiropyran Ether Methacrylate
Surface Grafting of Paper with Photochromic Spiropyran Ether Methacrylate
复制标题
光致变色螺吡喃醚甲基丙烯酸酯表面接枝纸
DOI：
10.15376/biores.11.4.8627-8637
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发表时间：
2016-08
期刊：
影响因子：
1.5
通讯作者：
Chen Kefu
中科院分区：
文献类型：
--
作者：
Tian Xiaojun;Wang Bin;Li Jinpeng;Zeng Jinsong;Chen Kefu
结果表明，通过原子转移自由基聚合（ATRP）方法，将螺吡喃醚甲基丙烯酸酯（SPMA）接枝到纤维表面，可以制备光致变色纸。通过傅里叶变换红外光谱（FTIR）、X射线光电子能谱（XPS）和扫描电子显微镜-能谱仪（SEM-EDS）对接枝纸的表面成分和形貌进行了分析。接枝反应后还检查了纤维素纤维的晶体结构。接枝后在 FTIR 光谱中检测到的特征吸收带表明反应形成了新的官能团。 XPS和SEM结果证实SPMA成功接枝到纤维表面。当暴露于紫外光照射和可见光时，接枝的螺吡喃基团表现出可逆的光致变色性能。改性后的纸张在紫外光照射下呈现紫色，在可见光照射下又变回原来的颜色。这种使用 ATRP 的表面改性被证明是制备光致变色纸的可行方法。
It was demonstrated that a photochromic paper could be made through the atom transfer radical polymerization (ATRP) method by grafting spiropyran ether methacrylate (SPMA) onto the fiber surface. The surface composition and topography of the grafted paper were analyzed by Fourier Transform Infrared Spectroscopy (FTIR), X-ray photoelectron spectra (XPS), and scanning electron microscopy-energy dispersive spectrometer (SEM-EDS). Crystal structures of the cellulosic fibers were also examined after the grafting reaction. The characteristic absorption bands detected in the FTIR spectrum after grafting suggested that a new functional group was formed by the reaction. The XPS and SEM results confirmed that SPMA was grafted onto the surface of the fibers successfully. The grafted spiropyran groups exhibited reversible photochromic properties when exposed to UV light irradiation and visible light. The modified paper showed a purple color under UV light irradiation and changed back to its original color when exposed to visible light. This surface modification using ATRP was demonstrated to be a feasible way to prepare photochromic paper.
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6.2
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