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Preparation of poly(glycolide-co-lactide)s through a green process: Analysis of structural, thermal, and barrier properties
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2016 (English)In: REACTIVE & FUNCTIONAL POLYMERS, ISSN 1381-5148, Vol. 109, p. 70-78Article in journal (Refereed) Published
Abstract [en]

We have successfully synthesized poly(lactide), poly(glycolide), and poly(lactide-co-glycolide) copolymers in bulk by ring-opening homo- and copolymerization of glycolide and L-lactide, using sodium hydride as the environmentally friendly and nontoxic initiator. Random copolymers were obtained, and the microstructure was characterized by nuclear magnetic resonance (H-1 and C-13 NMR) and matrix-assisted laser desorption ionization mass spectrometry (MALDI MS). The mechanism of reaction was elucidated by analysis cif the polymer end groups. Homopolymer and copolymers films and their blends were obtained, and structure and physical properties analyzed. Thermal degradation analysis showed superior Characteristics of copolymers with respect to the blends. Transport properties of water vapor were also evaluated and correlated to the copolymer composition.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 109, p. 70-78
Keywords [en]
Ring-opening polymerization, Poly(lactide), Poly(glycolide), Poly(lactide-co-glycolide), Barrier properties
National Category
Water Engineering
Identifiers
URN: urn:nbn:se:kth:diva-200231DOI: 10.1016/j.reactfunctpolym.2016.10.002ISI: 000390510200010Scopus ID: 2-s2.0-84994059876OAI: oai:DiVA.org:kth-200231DiVA, id: diva2:1073697
Note

QC 20170213

Available from: 2017-02-13 Created: 2017-02-13 Last updated: 2017-02-16Bibliographically approved

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Pappalardo, Daniela

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