Radical formation induced by γ radiation in poly(vinyl chloride) powder

L. Costa; V. Brunella; M.C. Paganini; S. Baccaro; A. Cecilia

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Radical formation induced by γ radiation in poly(vinyl chloride) powder

机译：γ射线在聚氯乙烯粉中引起的自由基形成

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Poly(vinyl chloride) powders were submitted to γirradiation in the dose range 25-150 kGy in vacuum, argon and air atmosphere conditions. The free radicals induced by radiation were investigated by EPR measurements performed at different times from the end of irradiation. Obtained results confirmed that at room temperature the poly(vinyl chloride) degradation process causes the formation of polyenil radicals, which can react with the oxygen diffused into the polymer giving rise to peroxyl radical species. The ratio of polyenil and peroxyl radicals is a function of the experimental condition atmosphere.

机译：将聚（氯乙烯）粉末在真空，氩气和空气条件下以25-150 kGy的剂量范围进行γ辐射。通过从辐射结束起在不同时间进行的EPR测量研究了辐射诱导的自由基。所得结果证实，在室温下，聚（氯乙烯）降解过程导致形成多烯基，其可与扩散到聚合物中的氧发生反应，从而产生过氧自由基。多烯基和过氧自由基的比率是实验条件气氛的函数。

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《Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms》 |2004年第4期|p.471-478|共8页
作者
L. Costa; V. Brunella; M.C. Paganini; S. Baccaro; A. Cecilia;
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作者单位

Department of Chemistry IFM, University of Turin, Via P. Giuria 7, 10125 Turin, Italy;

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原文格式 PDF
正文语种 eng
中图分类原子核物理学、高能物理学;原子能技术;
关键词
poly(vinyl chloride); high energy radiation; EPR; oxygen diffusion;

机译：聚氯乙烯;高能辐射;EPR;氧扩散;

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1. Radiation-induced conductance in the blends of poly(aniline-base) with poly(vinyl chloride) and poly[(vinylidene chloride)-co-(vinyl acetate)] [J] . Bodugoz H., Guven O., Sevil UA. Macromolecular symposia . 2001,第0期

机译：聚（苯胺基）与聚（氯乙烯）和聚[（偏二氯乙烯）-共-（乙酸乙烯酯）的混合物中的辐射诱导电导
2. Processability and Characterization of Poly(vinyl chloride)-b-Poly(n-butyl acrylate)-b-Poly(vinyl chloride) Prepared by Living Radical Polymerization of Vinyl Chloride.Comparison With a Flexible Commercial Resin Formulation Prepared With PVC and Dioc [J] . Jorge F.J.Coelho, Mafalda Carreira, Pedro M.O.F.Goncalves Journal of Vinyl & Additive Technology . 2006,第4期

机译：氯乙烯活性自由基聚合制备聚（氯乙烯）-b-聚（丙烯酸正丁酯）-b-聚（氯乙烯）的加工性能和表征。与PVC和Dioc制备的灵活商业树脂配方的比较
3. Synthesis of poly(vinyl chloride)-b-poly(2-ethylhexyl acrylate)-b-poly(vinyl chloride) by the competitive single-electron-transfer/degenerative-chain-transfer mediated living radical polymerization of vinyl chloride initiated from alpha,omega-di(iodo [J] . Percec V, Popov AV, Ramirez-Castillo E, Journal of Polymer Science, Part A. Polymer Chemistry . 2005,第11期

机译：由α引发的氯乙烯的竞争性单电子转移/变性链转移介导的活性自由基聚合反应合成聚（氯乙烯）-b-聚（丙烯酸2-乙基己酯）-b-聚氯乙烯，欧米茄二（碘
4. Effects of Poly(Vinyl Chloride)-grafted-Maleic Anhydride on the Poly(Vinyl Chloride)/Epoxidized Natural Rubber/Kenaf Core Powder Composite [C] . ROHANI Abdul Majid, HANAFI Ismail, RAZAINA Mat Taib Advanced Materials Conference . 2016

机译：聚（氯乙烯） - 移植 - 马来酸酐对聚（氯乙烯）/环氧化天然橡胶/ kENAF芯粉复合材料的影响
5. RADIATION-INDUCED GRAFTING OF BUTADIENE TO CHLORINATED POLYETHYLENE AND POLY(VINYL CHLORIDE). [D] . BLOCK, IRA. 1971

机译：丁二烯的辐射诱导接枝为氯化聚乙烯和聚氯乙烯。
6. Influence of Polyphosphates on the Physicochemical Properties of Poly (Vinyl Chloride) after Irradiation with Ultraviolet Light [O] . Gamal A. El-Hiti, Dina S. Ahmed, Emad Yousif, 2020

机译：紫外线照射后聚磷酸盐对聚氯乙烯理化性质的影响
7. Processability and characterization of poly(vinyl chloride)-b-poly(n-butyl acrylate)-b-poly(vinyl chloride) prepared by living radical polymerization of vinyl chloride. Comparison with a flexible commercial resin formulation prepared with PVC and dioctyl phthalate [O] . Coelho Jorge F. J., Carreira Mafalda, Gonçalves Pedro M. O. F., 2006

机译：通过氯乙烯的活性自由基聚合制备的聚（氯乙烯）-b-聚（丙烯酸正丁酯）-b-聚氯乙烯的可加工性和表征。与由PVC和邻苯二甲酸二辛酯制备的柔性市售树脂配方的比较
8. Thermally Stimulated Current Characterization of the Degradation of Poly(Vinyl Chloride) Cable Material in Radiation and Thermal Environments. [R] . Kurtz, S. R. 1983

机译：辐射和热环境中聚氯乙烯电缆材料降解的热刺激电流表征。

Radical formation induced by γ radiation in poly(vinyl chloride) powder

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