CHARACTERIZATION OF OLIGOMERS IN POLY(ETHYLENE-TEREPHTHALATE) BY MATRIX-ASSISTED LASER-DESORPTION IONIZATION MASS-SPECTROMETRY

被引：39

作者：

WEIDNER, S

KUHN, G

JUST, U

机构：

[1] Federal Institute of Materials Research and Testing (BAM), Berlin, 12205

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1995年 / 9卷 / 08期

关键词：

D O I：

10.1002/rcm.1290090813

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Matrix-assisted laser desorption/ionization mass spectrometry was used for the characterization of extracted and synthesized oligo(ethylene terephthalate)s. Generally, cyclic oligomers [GT](n) could be found in technical yarns and tiles, whereas our synthesized model oligomers mainly consisted of linear chains H-[GT](n)-G. In addition, some other distributions could be identified as H-[GT](n)-OH and H-[GGT](1)-[GT](n-1)-G linear oligomers and H-[GGT](1)-[GT](n-1) cyclic oligomers, where G is an ethylene glycol unit, GG is a diethylene glycol unit, caused by impurities of ethylene glycol, and T is a terephthalic acid unit. NMR and IR investigations were carried out to verify these results.

引用

页码：697 / 702

页数：6

共 18 条

[1] ANALYSIS OF POLYETHYLENE TEREPHTHALATE PREPOLYMER BY TRIMETHYLSILYLATION AND GAS CHROMATOGRAPHY [J].