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Methods for the Analysis of Hydrocarbon Polymers by Matrix‐assisted Laser Desorption/Ionization Time‐of‐flight Mass Spectrometry
Author(s) -
Danis Paul O.,
Karr Dane E.,
Xiong Yansan,
Owens Kevin G.
Publication year - 1996
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/(sici)1097-0231(199605)10:7<862::aid-rcm578>3.0.co;2-x
Subject(s) - chemistry , mass spectrometry , polymer , desorption , analytical chemistry (journal) , polyatomic ion , oligomer , isoprene , ionization , ion , gel permeation chromatography , matrix assisted laser desorption/ionization , matrix (chemical analysis) , time of flight mass spectrometry , hydrocarbon , chromatography , polymer chemistry , organic chemistry , copolymer , adsorption
With the addition of silver acetoacetonate to matrices of trans ‐3‐indoleacrylic acid or 1,4‐di‐(2‐(5‐phenyloxazolyl))benzene, methods have been developed for the analysis of hydrocarbon polymers by matrix‐assisted laser desorption/ionization time‐of‐flight (MALDI‐TOF) mass spectrometry. Silver‐cationized molecular ions were produced for polymers of styrene, butadiene and isoprene up to mass 125 000 Da. For lower‐mass styrene polymers, the resolved oligomer molecular ions provide information concerning the end group. Average molecular weights determined by MALDI‐TOF are in good agreement with values from gel‐permeation chromatography.