{"title":"聚丙烯酸中光自由基反应的机理和动力学","authors":"E.N. Seropegina, G.G. Kochetkova, N.V. Fock, M.Ya. Mel'nikov","doi":"10.1016/0144-2880(85)90024-7","DOIUrl":null,"url":null,"abstract":"<div><p>Photochemical conversion of paramagnetic centres formed under γ-irradiation of polyacrylic acid (PAA) at 77 K has been studied. Middle macroradicals of PAA are involved in the photodissociation reaction to form hydroxyl radicals. They are also found to be capable of recombining. A scheme for the photoradical processes in PAA at 77 K is proposed.</p></div>","PeriodicalId":101036,"journal":{"name":"Polymer Photochemistry","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0144-2880(85)90024-7","citationCount":"6","resultStr":"{\"title\":\"Mechanism and kinetics of photoradical reactions in polyacrylic acid\",\"authors\":\"E.N. Seropegina, G.G. Kochetkova, N.V. Fock, M.Ya. Mel'nikov\",\"doi\":\"10.1016/0144-2880(85)90024-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Photochemical conversion of paramagnetic centres formed under γ-irradiation of polyacrylic acid (PAA) at 77 K has been studied. Middle macroradicals of PAA are involved in the photodissociation reaction to form hydroxyl radicals. They are also found to be capable of recombining. A scheme for the photoradical processes in PAA at 77 K is proposed.</p></div>\",\"PeriodicalId\":101036,\"journal\":{\"name\":\"Polymer Photochemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1985-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0144-2880(85)90024-7\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Polymer Photochemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0144288085900247\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Photochemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0144288085900247","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
摘要
研究了聚丙烯酸(PAA)在77 K γ辐照下形成的顺磁中心的光化学转化。PAA的中间自由基参与光解反应形成羟基自由基。它们也被发现能够重组。提出了77 K下PAA光化过程的一种方案。
Mechanism and kinetics of photoradical reactions in polyacrylic acid
Photochemical conversion of paramagnetic centres formed under γ-irradiation of polyacrylic acid (PAA) at 77 K has been studied. Middle macroradicals of PAA are involved in the photodissociation reaction to form hydroxyl radicals. They are also found to be capable of recombining. A scheme for the photoradical processes in PAA at 77 K is proposed.
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