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Chemical End-group Derivatization of Poly(ethyleneglycol)—Investigation by Matrix-assisted Laser Desorption/Ionization Mass Spectrometry

✍ Scribed by St. Weidner; G. Kühn

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
392 KB
Volume
10
Category
Article
ISSN
0951-4198

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✦ Synopsis

The hydroxy end-groups of poly(ethyleneglyco1) polymers PEG lo00 and 4000) were derivatized by etherification using methyl, ethyl and triphenylmethyl (trityl) halogenides. During the derivatization the molecular mass distribution of monoand disubstituted polymers as well as unsubstituted polymers could be obtained by means of matrix-assisted laser desorption/ionization mass spectrometry (MALDYMS). For the first time MALDYMS was used to investigate the kinetics of a chemical reaction involving synthetic polymers.

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