title: Molecular level structure of novel synthetic analogues of aliphatic biopolyesters as revealed by multistage mass spectrometry.
abstract: The present study focuses on electrospray ionisation (ESI) tandem mass spectrometry of novel copolyesters obtained by anionic ring-opening copolymerisation of β-substituted β-lactones. Detailed analysis of these copolyesters, including molecular chain architecture as well as the structures of the end groups, was performed using ESI-MS/MS collision-induced dissociation spectra. The random arrangement of comonomeric units along the copolyester chains was demonstrated by comparison of ESI-MS(n) fragmentation spectra and fragmentation pathways. Sequence distribution analysis of comonomeric units confirmed the copolymer's random structure. ESI-MS(n) proved to be a promising technique for structural analysis of copolyesters obtained via anionic ROP.
authors.affiliation: Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland.
authors.forename: Grażyna
authors.initials: G
authors.lastname: Adamus
authors.affiliation: Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland.
authors.forename: Iwona
authors.initials: I
authors.lastname: Kwiecień
authors.affiliation: Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Maksymiak
authors.affiliation: Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Bałakier
authors.affiliation: Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland.
authors.forename: Janusz
authors.initials: J
authors.lastname: Jurczak
authors.affiliation: Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland. Electronic address: cchpmk@poczta.ck.gliwice.pl.
authors.forename: Marek
authors.initials: M
authors.lastname: Kowalczuk
mesh_terms: D000838:Anions / Q000737:chemistry; D002849:Chromatography, Gas; D006885:Hydroxybutyrates / Q000737:chemistry; D007783:Lactones / Q000737:chemistry; D011091:Polyesters / Q000032:analysis* / Q000138:chemical synthesis / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D000838:Anions; D006885:Hydroxybutyrates; D007783:Lactones; D011091:Polyesters
keywords: Anionic copolymerisation of β-substituted β-lactones; Copolymer sequence distribution; Polyhydroxyalkanoate analogues; Polymer mass spectrometry