|
|||||
|
|
| 溶剂梯度淋洗法表征无规共聚聚丙烯管材专用树脂 | |
| 引用本文： | 郭梅芳,张京春,黄红红,侯莉萍,李前树.溶剂梯度淋洗法表征无规共聚聚丙烯管材专用树脂[J].石油化工,2005,34(2):173-175. |
| 作者姓名： | 郭梅芳 张京春 黄红红 侯莉萍 李前树 |
| 作者单位： | 1. 北京理工大学,理学院,北京,100081;北京化工研究院,北京,100013 2. 北京化工研究院,北京,100013 3. 北京理工大学,理学院,北京,100081 |
| 摘 要： | 采用溶剂梯度淋洗法(SGEF)对无规共聚聚丙烯管材专用树脂(PPR)进行了结构分级,用凝胶渗透色谱仪及核磁共振波谱仪分析了级分试样的相对分子质量及乙烯含量,并对级分加和后的相对分子质量分布与未分级的原样进行了对比,探讨了SGEF方法的可行性。得到的数据在一定程度上可以定量地给出PPR中乙烯的分布情况。 |
| 关 键 词： | 溶剂梯度淋洗 无规共聚聚丙烯 树脂 表征 |
| 文章编号： | 1000-8144(2005)02-0173-03 |
| 修稿时间： | 2004年9月25日 |
Characterization of Ethylene Distribution in Propylene Based Copolymer by Solvent - Gradient Elution Fractionation |
|
| Guo Meifang.Characterization of Ethylene Distribution in Propylene Based Copolymer by Solvent - Gradient Elution Fractionation[J].Petrochemical Technology,2005,34(2):173-175. | |
| Authors: | Guo Meifang |
| Affiliation: | Guo Meifang~ |
| Abstract: | Random ethylene-propylene copolymer resin(PPR) used in manufacturing pipes was fractionated by means of solvent-(gradient) elution fractionation(SGEF).Relative molecular mass distribution (MWD) of (graded) fractions were measured by gel permeation chromatography(GPC).MWD of original sample was (compared) with MWD of summation of fractions.Application of SGEF in fractionation of PPR was (acceptable.)Ethylene content in each fraction was given by ~(13)C nuclear magnetic resonance (NMR).Ethylene distribution in different graded fractions were not uniform. |
| Keywords: | solvent-gradient elution fractionation random ethylene-propylene copolymer resin (characterization) |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |