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MALDI-TOF MS Reveals the Molecular Level Structures of Different Hydrophilic-Hydrophobic Polyether-esters
KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknologi.ORCID-id: 0000-0002-7790-8987
KTH, Skolan för kemivetenskap (CHE), Fiber- och polymerteknologi.
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2009 (engelsk)Inngår i: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 10, nr 6, s. 1540-1546Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Multi- and triblock copolymers based on 1,5-dioxepan-2-one/epsilon-caprolactone (DXO/CL) were investigated by MALDI-TOF MS to determine the influence of copolymer composition and architecture on the molecular structures at the individual chain level. The copolymer compositions, average block lengths, and molecular weights were determined by H-1 and C-13 NMR and by SEC, respectively. The structures of polyether-ester oligomers (linear, cyclic) as well as the chemical structures of their end groups were established on the basis of their MALDI-TOF mass spectra. The mass spectrum of PDXO homopolymer was relatively simple, however, complex mass spectra were obtained in the case of multi- and triblock copolymers and the mass spectra clearly discerned the molecular level effect of copolymer composition and copolymer type.

sted, utgiver, år, opplag, sider
2009. Vol. 10, nr 6, s. 1540-1546
Emneord [en]
degradation-product patterns, flight mass-spectrometry, synthetic-polymers, epsilon-caprolactone, 1, 5-dioxepan-2-one, copolymers, polymerization, copolyesters, networks
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Identifikatorer
URN: urn:nbn:se:kth:diva-18499DOI: 10.1021/bm9001415ISI: 000266860700028Scopus ID: 2-s2.0-67049100520OAI: oai:DiVA.org:kth-18499DiVA, id: diva2:336546
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QC 20150723

Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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Hakkarainen, Minna

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