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Matrix‐assisted laser desorption/ionization study of cationization of PEO‐PPP rod‐coil diblock polymers
Author(s) -
Chen Hui,
He Meiyu,
Wan Xinhua,
Yang Lifang,
He Haifeng
Publication year - 2002
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.890
Subject(s) - chemistry , desorption , polymer , matrix assisted laser desorption/ionization , lithium (medication) , alkali metal , ionization , mass spectrometry , matrix (chemical analysis) , ion , analytical chemistry (journal) , inorganic chemistry , polymer chemistry , chromatography , organic chemistry , adsorption , medicine , endocrinology
Five PEO‐PPP rod‐coil diblock polymers were synthesized and characterized using matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐TOFMS). By using a series of alkali chlorides as cation salts, relative cation affinities were studied. Different cation affinities and shifts in molecular weight distributions were found as a result of changing the cation type and size. Also, a study of lithium cationization resulted in determination of a recommended quantity of lithium to be used. Copyright © 2002 John Wiley & Sons, Ltd.