SEPARATION AND CHARACTERIZATION OF A VISCOSITY INDEX IMPROVER COPOLYMER BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY

被引：8

作者：

BLANCOGOMIS, D

LEBOURGEOIS, JM

ROSSET, R

机构：

[1] ECOLE SUPER PHYS & CHIM IND,CHIM ANALYT LAB,10 RUE VAUQUELIN,F-75005 PARIS,FRANCE

[2] UNIV OVIEDO,FAC QUIM,DEPT QUIM FIS & ANAL,OVIEDO,SPAIN

来源：

CHROMATOGRAPHIA | 1991年 / 31卷 / 1-2期

关键词：

COLUMN LIQUID CHROMATOGRAPHY; SIZE EXCLUSION CHROMATOGRAPHY; STYRENE-METHACRYLATE POLYMERS; IR AND UV SPECTROSCOPY; LUBRICATING OILS ADDITIVES;

D O I：

10.1007/BF02290500

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Characterization of a poly(styrene-alkyl methacrylate) viscosity index improver according to its chemical composition distribution and molecular weight distribution was carried out by liquid adsorption chromatography, size exclusion chromatography and infrared and ultraviolet spectrophotometry. The industrial polymer was fractionated by liquid chromatography using silica gel as adsorbent and a mixture of 1,2-dichloroethane and methanol as mobile phase. Each fraction was analyzed by size exclusion chromatography and infrared and ultraviolet spectroscopy. The number average molecular weight ranged from 10000 to 36000 and the weight average molecular weight from 19000 to 264000. The styrene content of the various fractions analysed was between 29.5 % and 72.2 %.

引用

页码：71 / 74

页数：4

共 13 条

[1]

AMOS R, 1979, CHROMATOGRAPHY PETRO, pCH17

[2] NON-AQUEOUS REVERSED-PHASE LIQUID-CHROMATOGRAPHIC FRACTIONATION OF POLYSTYRENE [J].