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Enzymatic catalysis as a versatile tool for the synthesis of multifunctional, bio-based oligoester resins
KTH, School of Biotechnology (BIO), Industrial Biotechnology.ORCID iD: 0000-0003-2644-0752
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Coating Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Coating Technology.ORCID iD: 0000-0003-3201-5138
KTH, School of Biotechnology (BIO), Industrial Biotechnology.ORCID iD: 0000-0002-2993-9375
2016 (English)In: Green Chemistry, ISSN 1463-9262, E-ISSN 1463-9270, Vol. 18, no 7, 1923-1929 p.Article in journal (Refereed) PublishedText
Abstract [en]

The use of enzymes as selective catalysts for processing renewable monomers into added value polymers and materials has received increased attention during the last decade. In the present work Candida antarctica lipase B (CalB) was used as catalyst in one-pot routes to synthesise multifunctional oligoester resins based on an epoxy-functional omega-hydroxy-fatty acid (EFA) extracted from birch bark. The chemoselective enzymatic process resulted in three different EFA-based telechelic oligomers with targeted molecular weights; containing maleimide, methacrylate or oxetane as end-groups, respectively. The enzyme catalysed synthesis of the maleimide and the oxetane telechelic oligomers reached full conversion of monomers (>95%) after 2 h. In the case of methacrylate functional oligomer the EFA monomer reached full conversion (>98%) after 2 h but the integration of the methacrylate moiety took more than 10 h. This was due to a rate limiting reaction path using ethylene glycol dimethacrylate as substrate. The oligomer products were characterised by NMR, MALDI-TOF-MS and SEC.

Place, publisher, year, edition, pages
The Royal Society of Chemistry , 2016. Vol. 18, no 7, 1923-1929 p.
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-185665DOI: 10.1039/c5gc02597dISI: 000372981400012ScopusID: 2-s2.0-84962377189OAI: oai:DiVA.org:kth-185665DiVA: diva2:923404
Funder
EU, FP7, Seventh Framework Programme
Note

QC 20160426

Available from: 2016-04-26 Created: 2016-04-25 Last updated: 2016-04-26Bibliographically approved

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Semlitsch, StefanTorron, SusanaJohansson, MatsMartinelle, Mats
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