硝化纤维素键合螺噁嗪光致变色材料的制备与研究

Synthesis and characterizatation of photochromic nitrocellulose material containing spirooxazine pendant group

通过接枝共聚方式,将螺噁嗪类光致变色基团引入硝化纤维素,得到了一种均相光致变色功能高分子材料。利用核磁共振碳谱、红外光谱对其结构进行了表征。利用紫外-可见吸收光谱研究发现,产物在丙酮溶液中具有良好的光致变色性质,并且显色体消色热稳定性显著增强。新材料良好的脂溶性和光致变色性使其更具实用潜力。

A homogeneous photochromic functional polymer was prepared by graft copolymerization of spironaph- thoxazine moiety onto nitrocellulose. The structure of target polymer was characterized by IR and la CNMR. The photochro- mism of the polymer was investigated by UV-Vis spectroscopy, and the results showed the polymer had good photochromic properties in acetone solution and the thermal stability of open form of target polymer had been significant improved. The excellent organic-solubility and photochromism made it had more extensive applications in practice.