| γ-辐照乙烯-辛烯共聚物的固体核磁~(13)C谱研究 |
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| 引用本文： | 何涛,贾少晋,江平开,陈燕.γ-辐照乙烯-辛烯共聚物的固体核磁~(13)C谱研究[J].高分子学报,2006(4):624-626. |
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| 作者姓名： | 何涛 贾少晋 江平开 陈燕 |
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| 作者单位： | 上海交通大学化学化工学院,上海市电气绝缘与热老化重点实验室,上海,200240 |
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| 摘 要： | 乙烯-辛烯共聚物(ethylene-octene copolymerPOE)作为一种新型的弹性体,因其具有良好的弹性、韧性、生理惰性,使其在聚合物增韧改性、包装医用材料、电线电缆等方面获得了广泛的应用1~3].Li等4]曾对POE在氮气和氧气的环境下的γ辐照进行了研究,讨论了不同环境下辐照剂量与POE
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| 关 键 词： | γ辐射 乙烯-辛烯共聚物 固体核磁13C谱 降解 |
| 收稿时间： | 2005-09-06 |
| 修稿时间： | 2005-12-08 |
SOLID STATE 13C-NMR STUDY OF γ-IRRADIATED POE |
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| HE Tao,JIA Shaojin,JIANG Pingkai,CHEN Yan.SOLID STATE 13C-NMR STUDY OF γ-IRRADIATED POE[J].Acta Polymerica Sinica,2006(4):624-626. |
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| Authors: | HE Tao JIA Shaojin JIANG Pingkai CHEN Yan |
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| Institution: | School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai Key Lab of Electric Insulation and Thermal Aging, Shanghai 200240 |
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| Abstract: | Ethylene-octene copolymer (POE) samples exposed to γ-radiation under a series doses were investigated using solid state ~ 13 C-NMR.The chemical shifts of POE were assigned, and the peak evolution as a function of radiation dose was discussed.An obviously chain scission was found near the branch carbons, and the ~ 13 C-NMR spectra of the corresponding gels confirmed the result.Linewidths of irradiated POE samples of various absorbed doses were observed to which were related to the molecular mobility of the radiation-crosslinked polymer. |
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| Keywords: | Ethylene-octene copolymer (POE) γ-Radiation Solid-state ~ 13 C-NMR Degradation |
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