| A STUDY ON RADIATION CROSSLINKING OFPOLYDIMETHYLSILOXANE （PDMS） RUBBER LATEX |
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| 作者姓名： | Yi-caiZhu Xiao-hongZhang Jin-liangQiao Gen-shuanWei |
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| 作者单位： | [1]DepartmentofAppliedChemistry,CollegeofChemistry,PekingUniversity,Beijing100871,China [2]SINOPEC,BeijingResearchInstituteofChemicalIndustry,Beejing100013,China |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | Polydimethylsiloxane (PDMS) rubber latex with two sorts of sensitizers, trimethylol propane tri-methacrylate (TMPTMA) and diethylene glycol di-acrylate (DEGDA), was irradiated with y-rays and electron beams in various conditions. The radiation crosslinking reaction of PDMS occurs in the inner phase of the latex and is relatively isolated from the water phase. Therefore the oxygen and the radicals produced by the radiolysis reaction of water almost have no effect on the crosslinking reaction of polymer. The experimental data correspond with the Charlesby-Pinner relationship in the main. The gelation doses, degree of crosslinking and degradation as well as G values of crosslinking were calculated. From them, the sensitization coefficients were derived to offer a quantitative measurement of the enhancing effect of sensitizer on the radiation crosslinking.
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| 关 键 词： | 辐射交联 聚二甲基硅氧烷 乳胶 感光剂 橡胶 |
| 收稿时间： | 2002-11-13 |
| 修稿时间： | 2003-03-13 |
A STUDY ON RADIATION CROSSLINKING OF POLYDIMETHYLSILOXANE (PDMS) RUBBER LATEX* |
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| Yi-caiZhu Xiao-hongZhang Jin-liangQiao Gen-shuanWei.A STUDY ON RADIATION CROSSLINKING OF POLYDIMETHYLSILOXANE (PDMS) RUBBER LATEX*[J].Chinese Journal of Polymer Science,2004,0(2):147-154. |
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| Authors: | Yi-cai Zhu |
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| Institution: | a.Department of Applied Chemistry, College of Chemistry, Peking University, Beijing 100871, China；b.SINOPEC, Beijing Research Institute of Chemical Industry, Beijing 100013, China |
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| Abstract: | Polydimethylsiloxane (PDMS) rubber latex with two sorts of sensitizers, trimethylol propane tri-methacrylate (TMPTMA) and diethylene glycol di-acrylate (DEGDA), was irradiated with γ-rays and electron beams in various conditions.The radiation crosslinking reaction of PDMS occurs in the inner phase of the latex and is relatively isolated from the water phase. Therefore the oxygen and the radicals produced by the radiolysis reaction of water almost have no effect on the crosslinking reaction of polymer. The experimental data correspond with the Charlesby-Pinner relationship in the main. The gelation doses, degree of crosslinking and degradation as well as G values of crosslinking were calculated. From them, the sensitization coefficients were derived to offer a quantitative measurement of the enhancing effect of sensitizer on the radiation crosslinking. |
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| Keywords: | Radiation crosslinking Polydimethylsiloxane (PDMS) Latex Sensitizer Charelsby-Pinner equation POLYDIMETHYLSILOXANE RADIATION CROSSLINKING STUDY PDMS LATEX sensitization coefficients derived quantitative measurement sensitizer radiation crosslinking degree degradation values gelation experimental data relationship oxygen radicals crosslinking reaction |
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