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合成了分子结构中含活性C—Br键的N-乙基-9′-正溴丁氧基螺噁嗪(Br-SO),利用Br-SO分子结构中的化学基团C—Br与部分水解的聚甲基丙烯酸甲酯(hPMMA)反应制备含SO的PMMA高分子化合物(SO-hPMMA)。采用1 HNMR和IR对Br-SO结构进行了表征,研究了Br-SO、SO-hPMMA的光致变色性能及其影响因素。研究表明:Br-SO、SO-hPMMA均具有良好的光致变色性能,且SO-hPMMA的热稳定性明显高于Br-SO。
Synthesis of N-ethyl-9’-n-bromobutyloxyspirooxazine (Br-SO) with active C-Br bonds in the molecular structure was studied by using the chemical group C-Br in the molecular structure of Br- Hydrolyzed polymethylmethacrylate (hPMMA) to produce SO-containing PMMA polymer compound (SO-hPMMA). The structure of Br-SO was characterized by 1 H NMR and IR. The photochromic properties of Br-SO and SO-hPMMA and their influencing factors were studied. The results show that both Br-SO and SO-hPMMA have good photochromism, and the thermal stability of SO-hPMMA is obviously higher than that of Br-SO.