Analysis of poly(ethylene oxide)-b-poly(propylene oxide) block copolymers by MALDI-TOF mass spectrometry using collision induced dissociation

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dc.contributor.authorMaciejczek A.
dc.contributor.authorMass V.
dc.contributor.authorRode K.
dc.contributor.authorPasch H.
dc.date.accessioned2011-05-15T16:02:16Z
dc.date.available2011-05-15T16:02:16Z
dc.date.issued2010
dc.description.abstractMatrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) was used to analyse the block length of commercially available block copolymers of poly(ethylene oxide) and poly(propylene oxide) (PEO- b-PPO) based on the fragmentation behaviour in collision induced dissociation (CID) experiments. MALDI-CID-TOF2 analysis is a complex procedure depending on a number of different experimental parameters. Therefore, a step-by-step procedure was used starting with PEG and PPG standards, PEG-PPG blends and endgroup-functionalized PPGs, to understand the fragmentation behaviour of the different species. These results showed that characteristic fragment patterns of the homopolymers and PEG-PPG mixtures can be obtained that facilitate the interpretation of the fragment spectra of PEO-b-PPO di- and triblock copolymers. It was found that di- and triblock copolymers can be differentiated by their fragment spectra. In addition, the sequence of monomer units in the diblock copolymers could be determined. © 2010 Elsevier Ltd.
dc.description.versionArticle
dc.identifier.citationPolymer
dc.identifier.citation51
dc.identifier.citation26
dc.identifier.issn323861
dc.identifier.other10.1016/j.polymer.2010.10.031
dc.identifier.urihttp://hdl.handle.net/10019.1/12391
dc.subjectBlock lengths
dc.subjectCollision induced dissociation
dc.subjectComplex procedure
dc.subjectDiblock copolymer
dc.subjectEnd groups
dc.subjectExperimental parameters
dc.subjectFunctionalized
dc.subjectHomopolymers
dc.subjectMALDI TOF MS
dc.subjectMALDI-TOF mass spectrometry
dc.subjectMatrix-assisted laser desorption/ionization-time-of-flight mass spectrometry
dc.subjectMonomer units
dc.subjectStep by step procedure
dc.subjectTriblock copolymers
dc.subjectBlock copolymers
dc.subjectCopolymerization
dc.subjectDesorption
dc.subjectDissociation
dc.subjectEthylene
dc.subjectMass spectrometry
dc.subjectPlastic products
dc.subjectPolyethylene glycols
dc.subjectPolypropylene oxides
dc.subjectPropylene
dc.subjectPolyethylene oxides
dc.titleAnalysis of poly(ethylene oxide)-b-poly(propylene oxide) block copolymers by MALDI-TOF mass spectrometry using collision induced dissociation
dc.typeArticle
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