Premium
Characterization of silsesquioxanes by size‐exclusion chromatography and matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry
Author(s) -
Falkenhagen Jana,
Jancke Harald,
Krüger RalphPeter,
Rikowski Eckhard,
Schulz Günter
Publication year - 2003
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.911
Subject(s) - chemistry , silsesquioxane , mass spectrometry , desorption , ionization , matrix assisted laser desorption/ionization , size exclusion chromatography , characterization (materials science) , analytical chemistry (journal) , chromatography , time of flight mass spectrometry , ion , organic chemistry , polymer , adsorption , nanotechnology , enzyme , materials science
Liquid chromatography in combination with spectroscopic methods like matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐TOFMS) or nuclear magnetic resonance (NMR) spectroscopy is a powerful method to characterize silsesquioxanes and silsesquioxane mixtures. As new examples, the formation of silsesquioxyl‐substituted silsesquioxanes [(n‐octyl) 7 (SiO 1.5 ) 8 ] 2 O and [(n‐octyl) 7 (SiO 1.5 ) 8 O] 2 [(n‐octyl) 6 (SiO 1.5 ) 8 ] as well as the cage rearrangement of octa‐[(n‐heptyl)silsesquioxane] to larger structur es [(n‐heptyl)SiO 1.5 )] n up to n=28 are shown. Copyright © 2003 John Wiley & Sons, Ltd.