通过水溶液接枝共聚,将螺噁嗪类光致变色基团引入羧甲基纤维素,得到了键合螺噁嗪基团的水溶性光致变色功能材料。利用红外光谱、热重分析等手段对其结构进行表征,结果表明:新材料是以羧甲基纤维素大分子为骨架,侧链接枝有螺噁嗪类光致变色基团。对新材料显色体在水溶液中的热褪色过程通过紫外-可见吸收光谱研究,结果表明:其具有良好的光致变色性能,且显色体热消色稳定性显著增强。新材料良好的水溶性和光致变色性使其更具实用价值。
A water-solubile photochromic functional polymer was prepared by graft copolymerization of spironaphthoxazine moiety onto carboxymethyl cellulose in water-solution.The structure of target polymer was characterized by IR and TGA.The photochromism of the target polymer was investigated by UV-Vis spectroscopy.The results showed that the target polymer had good photochromic properties in water solution,and the thermal bleaching stability of color body of target polymer was significant improved.The excellent water-solubility and photochromism made it more extensive applications.
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基金资助
陕西省教育厅专项科研计划项目(14JK1062);西安理工大学优秀博士学位论文研究基金(207-002J1303)
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