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首页> 外文期刊>Journal of Applied Polymer Science >Scission of the poly(methyl methacrylate-co-methacrylic acid) chain by excited-state acridine
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Scission of the poly(methyl methacrylate-co-methacrylic acid) chain by excited-state acridine

机译：激发态a啶裂解聚（甲基丙烯酸甲酯-共-甲基丙烯酸）链

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摘要

A photochemical reaction between acridine and poly(methyl methacrylate-co-methacrylic acid) (PMCA) was studied in benzene to build a recyclable polymer photodegradation system. The illumination of acridine in the presence of PMCA with 365-nm light induced the bleaching of acridine and the degradation of PMCA. The average molecular weight of the degraded polymer decreased rapidly for the first 30 min of the photolysis. A nonvolatile product of this reaction was found to have a 2-methyl-2-properyl end group. The efficiency of the PMCA scission by this method was 30 times as large as that of poly(methyl methacrylate). These results suggest that an efficient photochemical polymer decomposition system can be built by adding the mixing process of a little methacrylic acid into the synthetic processes of general vinyl polymers. (c) 2005 Wiley Periodicals, Inc.
机译：研究了a啶与聚（甲基丙烯酸甲酯-共-甲基丙烯酸）（PMCA）在苯中的光化学反应，建立了可回收的聚合物光降解体系。在存在PMCA的情况下，用365 nm光照射啶，会导致of啶的漂白和PMCA的降解。降解的聚合物的平均分子量在光解的前30分钟迅速降低。发现该反应的非挥发性产物具有2-甲基-2-丙烯酰基端基。通过这种方法进行PMCA切割的效率是聚（甲基丙烯酸甲酯）的30倍。这些结果表明，可以通过将少量甲基丙烯酸的混合过程添加到普通乙烯基聚合物的合成过程中来构建有效的光化学聚合物分解系统。 （c）2005年Wiley Periodicals，Inc.

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