Sequence Analysis of an Isocyanate Oligomer by MALDI-TOF Mass Spectrometry Using Collision Induced Dissociation

Autor:	Wolfgang Dr Schrepp, Harald Pasch, Bernhard von Vacano, Valentina Mass
Rok vydání:	2009
Předmět:	Telechelic polymer Polymers and Plastics Collision-induced dissociation Organic Chemistry Matrix isolation Sequence (biology) Condensed Matter Physics Oligomer Isocyanate chemistry.chemical_compound Monomer chemistry Polymer chemistry Materials Chemistry Molecule Physical and Theoretical Chemistry
Zdroj:	Macromolecular Chemistry and Physics. 210:1957-1965
ISSN:	1022-1352
Popis:	A TDI–MDI oligomer obtained by hydrolysis of a crosslinked polyurethane (PU) was analysed regarding the oligomer distribution by standard MALDI-TOF-MS and the monomer sequence in the different oligomers by collision induced dissociation (CID) experiments. The CID experiments produced product ions that were selective towards the monomer sequences in different oligomer molecules. By selecting suitable oligomer precursor ions with different monomer sequences out of the total oligomer distribution and conducting CID experiments, specific product mass peaks were identified that were characteristic for random and blocky monomer sequences. Therefore, a mass spectrometric method has become available for the important class of PUs that is not only selective towards the number and type of monomer units but also towards their sequence in the oligomer chain.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::760a2a7a8194576d490825bf02184d69 https://doi.org/10.1002/macp.200900236 Zobrazit plný text záznamu Plný text