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首页> 外文期刊>Polymer Degradation and Stability >Dual-mode optical switching property of copolymers containing pendant nitro and cyano substituted azobenzenes and fulgimide units
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Dual-mode optical switching property of copolymers containing pendant nitro and cyano substituted azobenzenes and fulgimide units

机译：含侧基硝基和氰基取代的偶氮苯和富马酰亚胺单元的共聚物的双模光学开关性能

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摘要

Homo/co-poly(decyloxymethacrylate)s containing thermally reversible nitro and cyano substituted azobenzenes and thermally irreversible fulgimide units in the pendant respectively were synthesized by free radical addition polymerization method and investigated their photochromic property. The dual-mode optical switching property of copolymers F-co-N and F-co-C was investigated and revealed C-form of fulgimide in F-co-N altered the electron withdrawing nature of nitro group in the terminal azo-benzene. The UV exposed films of F-co-N and F-co-C were annealed around their T_ g and found that thermally reversible cis-form of azobenzene isomerized to trans-form and thermally irreversible C-form of fulgimide unaltered. Both photochromic units in the resultant film were converted into planar configurations with good fluorescence property.
机译：通过自由基加成聚合法合成了侧基中分​​别含有热可逆的硝基和氰基取代的偶氮苯和热不可逆的富马酰亚胺单元的均聚/共聚（甲基丙烯酸癸氧基酯），并研究了它们的光致变色性能。研究了共聚物F-co-N和F-co-C的双模光学开关性能，发现F-co-N中的富马酰亚胺的C型改变了末端偶氮苯中硝基的吸电子特性。 F-co-N和F-co-C的UV暴露薄膜在其T_g附近退火，发现偶氮苯的热可逆顺式异构化成三氟甲酰亚胺的转化形式和热不可逆C形式，未改变。所得膜中的两个光致变色单元都被转换成具有良好荧光性质的平面构型。

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