Reaction of solvated electron with poly(methyl methacrylate) and substituted poly(methyl methacrylate) in hexamethylphosphoramide studied by pulse radiolysis
Reaction of solvated electron with poly(methyl methacrylate) and substituted poly(methyl methacrylate) in hexamethylphosphoramide studied by pulse radiolysis
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脉冲辐解研究六甲基磷酰胺中溶剂化电子与聚甲基丙烯酸甲酯和取代聚甲基丙烯酸甲酯的反应
DOI：
10.1021/j100288a034
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
H. Yoshida
中科院分区：
文献类型：
--
作者：
M. Ogasawara;Migaku Tanaka;H. Yoshida
研究了聚（甲基丙烯酸甲酯）、聚（甲基丙烯酸乙酯）、聚（甲基丙烯酸正丁酯）和聚（甲基丙烯酸异丁酯）在六甲基磷酰胺中的溶液的脉冲辐射分解产生的短寿命反应中间体。在持续时间为 20 ns 的电子脉冲之后，立即在所有检查的溶液中观察到在紫外光和可见光较长波长侧（> 600 nm）具有吸收带的瞬态吸收光谱。前一个和后一个谱带分别归属于聚合物的阴离子基团和溶剂化电子。研究了溶剂化电子与聚合物之间的反应以及聚合物阴离子的衰变反应。
Short-lived reaction intermediates produced by pulse radiolysis of solutions of poly(methyl methacrylate), poly(ethyl methacrylate), poly(n-butyl methacrylate), and poly(isobutyl methacrylate) in hexamethylphosphoramide have been investigated. Immediately after an electron pulse of 20-ns duration, transient absorption spectra which have absorption bands in the UV and in the longer wavelength side of the visible (>600 nm) were observed in all the solutions examined. The former and the latter bands are assigned to the anion radical of the polymers and the solvated electron, respectively. Reactions between the solvated electrons and the polymers and the decay reactions of the polymer anions were studied.