| 乙烯与甲基丙烯酸二甲氨基乙酯共聚物序列结构与结晶结构关系的研究 |
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| 引用本文： | 陈群,徐端夫.乙烯与甲基丙烯酸二甲氨基乙酯共聚物序列结构与结晶结构关系的研究[J].高分子学报,1996(6):750-752. |
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| 作者姓名： | 陈群 徐端夫 |
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| 作者单位： | [1]华东师范大学分析测试中心 [2]中国科学院化学所 |
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| 基金项目： | 国家自然科学基金,上海市教委曙光计划项目 |
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| 摘 要： | 乙烯与甲基丙烯酸二甲氨基乙酯共聚物序列结构与结晶结构关系的研究＊陈群罗会浚杨光（华东师范大学分析测试中心上海２０００６２）徐端夫（中国科学院化学所北京１０００８０）关键词乙烯共聚物，高分辨核磁共振，序列结构，最小可结晶序列长度乙烯与甲基丙烯酸二甲氨基...
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| 关 键 词： | 乙烯共聚物，高分辨核磁共振，序列结构，最小可结晶序列长度 |
RELATIONSHIP BETWEEN CHAIN STRUCTURE AND CRYSTALLINE STRUCTURE OF ETHYLENE-DIMETHYLAMINOETHYL METHACRYLATE COPOLYMERS |
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| CHEN Qun,LUO Huijun,YANG Guang.RELATIONSHIP BETWEEN CHAIN STRUCTURE AND CRYSTALLINE STRUCTURE OF ETHYLENE-DIMETHYLAMINOETHYL METHACRYLATE COPOLYMERS[J].Acta Polymerica Sinica,1996(6):750-752. |
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| Authors: | CHEN Qun LUO Huijun YANG Guang |
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| Abstract: | The comonomer sequence distributions of a series of ethylene -dimethylamino-ethyl methacrylate copolymers(EDAM) were determined by high-resolution 13 C NMR spectroscopy quantitatively. It was found that the crystallinities and the lamellar thickness of EDAM samples reported by Ohmae et al. vary linearly with the numerical average sequence lengths of ethylene sequence. It was demonstrated that only ethylene chains longer than a critical number (25) can enter the crystalline region. This critical number is found to be independent of the molecular weights and the DAM contents of the copolymers under the same crystallization condition. |
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| Keywords: | Ethylene copolymer High-resolution NMR Sequence distribution Minimum crystallizable ethylene sequence length |
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