| 乙烯—醋酸乙烯酯(EVA)共聚物组成及结构分析 |
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| 引用本文： | 陈广美 黄毅萍. 乙烯—醋酸乙烯酯(EVA)共聚物组成及结构分析[J]. 安徽大学学报(自然科学版), 1997, 21(3): 86-91 |
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| 作者姓名： | 陈广美 黄毅萍 |
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| 作者单位： | 安徽大学化学系 |
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| 摘 要： | 利用 FT-IR、NMR 对 EVA 的组成、序列结构进行分析,结果准确度高,分析过程方便、快速。
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| 关 键 词： | 乙烯-醋酸乙烯酯 序列分布 数均序列长度 模型化合物 |
Analysis on the Components and the Constructions of EVA(ethylene-vinylacetate copolymers) |
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| Abstract: | This paper introduced the analysis of EVA(ethylene -vinylacetate copolymers)structures.The compn,of EVA were detd.by FT-IR and ~1H-NMR,the sequence distribution and the number-average sequence length in EVA were detd.by ~(13)C - NMR.A few papers described the distribution of branchings in EVA.This thesis got a method to analyze the distribution of branchings in EVA.Using the model compounds such as polyproplylene,α-ethyl hexanel and poly -α-hexene,we obtained the total branchings, ethyl -branching,butyl -branching and long -chain branchings compn,respectively by FT -IR.The number of total branchings obtained by FT-IR agreed with the results from ~1H -NMR. |
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| Keywords: | EVA(ethylene-vinylacetate copolyrners) sequence distribution number-average sequence length the distribution of branchings model compounds |
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