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| PGC-MS鉴别乙烯-辛烯共聚物 | |
| 引用本文： | 吴惠勤,黄晓兰,黄芳,林晓珊. PGC-MS鉴别乙烯-辛烯共聚物[J]. 分析测试学报, 2005, 24(2): 45-47,50 |
| 作者姓名： | 吴惠勤 黄晓兰 黄芳 林晓珊 |
| 作者单位： | 中国广州分析测试中心,广东省化学危害应急检测技术重点实验室,广东,广州,510070;中国广州分析测试中心,广东省化学危害应急检测技术重点实验室,广东,广州,510070;中国广州分析测试中心,广东省化学危害应急检测技术重点实验室,广东,广州,510070;中国广州分析测试中心,广东省化学危害应急检测技术重点实验室,广东,广州,510070 |
| 基金项目： | 科技部国家重点新产品项目 |
| 摘 要： | 乙烯-辛烯共聚物与聚乙烯性能、价格差别很大，但无鉴别二者的检验方法。我们采用裂解气相色谱一质谱(PGC-MS)方法研究这两种聚合物的热裂解产物的组成，发现两者裂解产物的成分相同，均为不同碳数的烷烃、烯烃化合物；但含量有区别，主要区别在辛烯。乙烯-辛烯共聚物裂解产物中辛烯(C8)的相对含量明显高于聚乙烯，C8峰可作为鉴别乙烯-辛烯共聚物的特征峰，据此建立了鉴别两种聚合物的方法，并在进出口商品检验中得到很好的应用。 |
| 关 键 词： | PGC-MS 乙烯-辛烯共聚物 聚乙烯 鉴别 |
| 文章编号： | 1004-4957(2005)02-0045-03 |
Identification of Ethylene-Octene Copolymer by Pyrolysis GC-MS |
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| WU Hui-qin,HUANG Xiao-lan,HUANG Fang,LIN Xiao-shan. Identification of Ethylene-Octene Copolymer by Pyrolysis GC-MS[J]. Journal of Instrumental Analysis, 2005, 24(2): 45-47,50 | |
| Authors: | WU Hui-qin HUANG Xiao-lan HUANG Fang LIN Xiao-shan |
| Abstract: | A new method for the identification of ethylene-octene copolymer and polyethlene by pyrolysis GC-MS,which could not be distinguished before,was established.The major pyrolysis products were C 6 -C 25 olefine and alkane.The results showed that the chemical constituents of pyrolysis products were similar,but their relative contents were different.The content of octene in ethylene-octene copolymer was higher than that in polyethylene.The octene peak was used as the characteristic peak to identify ethylene-octene copolymer,and its relative content was used for the determination of octene proportion in the copolymer.This method is rapid,simple and has been applied in the identification of ethylene-octene copolymer and polyethene. |
| Keywords: | PGC-MS |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |