Yang Zhi-fan
2012
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Journal
Journal of Guangxi University
Abstract
Researchers have paid high attention to photochromic polymer materials in recent years,and research objects are mainly graft polymer,copolymerization and polymer blend.In this article 4-hydrazinobenzoic acid was synthesized from p-aminobenzoic acid by diazotization,restoration and neutralization.And then N-methyl-5-carboxyl-9-hydroxyl spirooxazine,namely SO-1,were also synthesized.Furthermore,3-bromopropionic acid was synthesized from acrylic acid and hydrobromic acid.N-Carboxy ethyl-9'-hydroxy spirooxazine,namely SO-2,were synthesized from 3-bromopropionic acid that was in place of the traditional 3-iodopropionic acid.The structure of SO-2 was proved with melting point test and nuclear magnetism.Two compounds,SO-1 and SO-2,which had not been reported in literature,both contain two kinds of functional groups,can self-condense or graft different polymers to obtain better photochromic properties.