引用本文:
程镕时, 赵石林. 聚硅氧烷-g-聚苯乙烯与聚苯乙烯均聚物在硅胶SEC柱上的分离和分析[J]. 应用化学,
1990, 7(5): 80-82.
Citation: Cheng Rongshi, Zhao Shilin. SEPARATION AND ANALYSIS OF POLYDIMETHYLSLOXANE-g-POLYSTYRENE AND STYRENE HOMOPOLYMER BY SEC WITH SILICA COLUMN[J]. Chinese Journal of Applied Chemistry, 1990, 7(5): 80-82.
Citation: Cheng Rongshi, Zhao Shilin. SEPARATION AND ANALYSIS OF POLYDIMETHYLSLOXANE-g-POLYSTYRENE AND STYRENE HOMOPOLYMER BY SEC WITH SILICA COLUMN[J]. Chinese Journal of Applied Chemistry, 1990, 7(5): 80-82.
聚硅氧烷-g-聚苯乙烯与聚苯乙烯均聚物在硅胶SEC柱上的分离和分析
摘要:
在共聚产物的分析中,作者等提出了一种用体积排除色谱对共聚产物的各个组份作定量分析的方法[1]。但是当共聚物与均聚物的分子量相近时,需要先借助其他方法例如溶解分级使其分离。利用吸附效应的差异,选择适当的展开剂,在硅胶板上进行薄层色谱,常可使共聚物与均聚物作有效的分离[2-4]。但是用薄层色谱作准确的定量分析比较困难。近年来,利用在体积排除色谱柱中填料上的吸附等二次效应作共聚物的分离已经引起注意[5,6]。
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关键词:
- 体积排除色谱
- / 硅氧烷-苯乙烯接枝共聚物
English
SEPARATION AND ANALYSIS OF POLYDIMETHYLSLOXANE-g-POLYSTYRENE AND STYRENE HOMOPOLYMER BY SEC WITH SILICA COLUMN
Abstract:
A method is proposed to separate styrene homopolymer from polydimethylsiloxane-g-poly-styrene and to determine their contents by quantitative SEC with Porasil column and mixture of 1:5 tetrahydrofurane-cyclohexane.
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