Application of GPC coupled with diode-array detector for the study of oxidative changes in styrene-butadiene copolymers

作     者：Pulda, J Cihak, P 

作者机构：Kaucuk SV Lebedev Synthet Rubber Res Inst Kralupy 27852 Czech Republic Kaucuk SV Lebedev Synthet Rubber Res Inst Vitavou Czech Republic 

出 版 物：《INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION》 (国际聚合物分析与特性杂志)

年 卷 期：1998年第4卷第3期

页      面：247-262页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

主　　题：gel permeation chromatography diode array detection styrene-butadiene copolymer oxidation derivatization 

摘      要：The combination of GPC with a diode-array detector (DAD) was utilized for the determination of the oxidation course of styrene-butadiene copolymers. This article describes the use of a facile GPC-DAD technique to determine the relative contents of hydroxyl and carbonyl functional groups formed during oxidation along the molecular weight distribution. Hydroxyl and carbonyl groups detection is based on derivatization of these groups resulting in uniquely strongly UV-visible absorbing derivatives. The relative changes in molecular weight distribution were determined simultaneously. The results from the analysis can be valuable information for elucidation of degradation and branching processes during polymer oxidation.