Premium
Characterization of oligomers in poly(ethylene terephthalate) by matrix‐assisted laser desorption/ionization mass spectrometry
Author(s) -
Weidner St.,
Kühn G.,
Just U.
Publication year - 1995
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290090813
Subject(s) - chemistry , ethylene glycol , terephthalic acid , diethylene glycol , mass spectrometry , desorption , ethylene , polymer chemistry , oligomer , matrix assisted laser desorption/ionization , adipic acid , chromatography , organic chemistry , polyester , catalysis , adsorption
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.