Oxetane-Terminated Telechelic Epoxy-Functional Polyesters as Cationically Polymerizable Thermoset Resins: Tuning the Reactivity with Structural Design
2015 (English)In: Journal of Polymer Science Part A: Polymer Chemistry, ISSN 0887-624X, E-ISSN 1099-0518, Vol. 53, no 19, 2258-2266 p.Article in journal (Refereed) Published
A series of epoxy-functional telechelic oligomers containing oxetane end groups have been synthesized. The precursor monomer, extracted from outer Birch bark, was first polymerized through enzyme-catalyzed esterification to form oligomers having epoxy and/or oxetane groups in the structures. The oligoesters were subsequently crosslinked through cationic polymerization either by epoxy or oxetane homopolymerization or copolymerization when both functionalities were present. A study of the polymerizations of the resins was performed "in situ" using real-time Fourier transform infrared spectroscopy revealing a preferred copolymerization when compared with the homopolymerization. By tailoring the different structures, it was possible to control the final mechanical properties of the networks.
Place, publisher, year, edition, pages
[Torron, Susana; Johansson, Mats] KTH Royal Inst Technol, Div Coating Technol, Sch Chem Sci & Engn, Dept Fibre & Polymer Technol, SE-10044 Stockholm, Sweden., 2015. Vol. 53, no 19, 2258-2266 p.
biobased monomer, cationic polymerization, enzymatic catalysis, enzymes, epoxide, oxetane, telechelic polymers
IdentifiersURN: urn:nbn:se:kth:diva-174215DOI: 10.1002/pola.27673ISI: 000360729600008ScopusID: 2-s2.0-84942295531OAI: oai:DiVA.org:kth-174215DiVA: diva2:861442
QC 201510162015-10-162015-10-022015-10-21Bibliographically approved