{"title":"辐射诱导丙烯腈在液态乙烯中的聚合","authors":"Y. Tabata, H. Sobue, A. Harã","doi":"10.1246/NIKKASHI1898.65.5_735","DOIUrl":null,"url":null,"abstract":"The mixed system of 2 unsaturated compounds were irradiated by Co/sup 60/ gamma -rays at-78 deg C at the rate of 7 x 10/sup 4/ r/hr up to 6.4 x 10/sup 6/ r. Only acrylonitrile polymerized. The results indicated that both C = C and C/ sup -/=N bonds of acrylonitrile polymerized; however, the ratio of the 2 types varied with different concentrations of the monomer. Polymerization of the former occurred only in a bulk 100% monomer, while the latter occurred predominantly in a dilute monomer solution. This type of polymerization, C/sup -/ =N, would be an ionic mechanism, and probably anionic. It was concluded that polymerization of such a mixture was partially by the ionic mechanism in medium concentration of the monomer. The structures of the products are described. (OID)","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"5 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Radiation-Induced Polymerization of Acrylonitrile in Liquid Ethylene\",\"authors\":\"Y. Tabata, H. Sobue, A. Harã\",\"doi\":\"10.1246/NIKKASHI1898.65.5_735\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The mixed system of 2 unsaturated compounds were irradiated by Co/sup 60/ gamma -rays at-78 deg C at the rate of 7 x 10/sup 4/ r/hr up to 6.4 x 10/sup 6/ r. Only acrylonitrile polymerized. The results indicated that both C = C and C/ sup -/=N bonds of acrylonitrile polymerized; however, the ratio of the 2 types varied with different concentrations of the monomer. Polymerization of the former occurred only in a bulk 100% monomer, while the latter occurred predominantly in a dilute monomer solution. This type of polymerization, C/sup -/ =N, would be an ionic mechanism, and probably anionic. It was concluded that polymerization of such a mixture was partially by the ionic mechanism in medium concentration of the monomer. The structures of the products are described. (OID)\",\"PeriodicalId\":374032,\"journal\":{\"name\":\"Kogyo Kagaku Zasshi\",\"volume\":\"5 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Kogyo Kagaku Zasshi\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1246/NIKKASHI1898.65.5_735\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Kogyo Kagaku Zasshi","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1246/NIKKASHI1898.65.5_735","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Radiation-Induced Polymerization of Acrylonitrile in Liquid Ethylene
The mixed system of 2 unsaturated compounds were irradiated by Co/sup 60/ gamma -rays at-78 deg C at the rate of 7 x 10/sup 4/ r/hr up to 6.4 x 10/sup 6/ r. Only acrylonitrile polymerized. The results indicated that both C = C and C/ sup -/=N bonds of acrylonitrile polymerized; however, the ratio of the 2 types varied with different concentrations of the monomer. Polymerization of the former occurred only in a bulk 100% monomer, while the latter occurred predominantly in a dilute monomer solution. This type of polymerization, C/sup -/ =N, would be an ionic mechanism, and probably anionic. It was concluded that polymerization of such a mixture was partially by the ionic mechanism in medium concentration of the monomer. The structures of the products are described. (OID)
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