Chemical end-group derivatization of poly(ethyleneglycol)-investigation by matrix-assisted laser desorption/ionization mass spectrometry

被引:0
作者
Weidner, S
Kuhn, G
机构
关键词
D O I
10.1002/(SICI)1097-0231(19960610)10:8<942::AID-RCM599>3.3.CO;2-B
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
The hydroxy end-groups of poly(ethyleneglycol) polymers (PEG 1000 and 4000) were derivatized by etherification using methyl, ethyl and triphenylmethyl (trityl) halogenides, During the derivatization the molecular mass distribution of mono- and disubstituted polymers as well as unsubstituted polymers could be obtained by means of matrix-assisted laser desorption/ionization mass spectrometry (MALDI/MS). For the first time MALDI/MS was used to investigate the kinetics of a chemical reaction involving synthetic polymers.
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页码:942 / 946
页数:5
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