Unsaturated, biobased polyesters and their cross-linking via radical copolymerization

Lidia Jasińska-Walc; Cor E. Koning

doi:10.1002/pola.24067

Unsaturated, biobased polyesters and their cross-linking via radical copolymerization

Abstract

Biobased, unsaturated polyesters derived from isosorbide, maleic anhydride and succinic acid were synthesized and characterized. The presence of maleic anhydride units in the structure of the polyesters allowed converting them into cured coatings by radical copolymerization with cross-linking agents such as 2-hydroxyethyl methacrylate, N-vinyl-2-pyrrolidinone, acrylic acid or methacrylamide. The investigated polyesters were obtained via bulk polycondensation, catalyzed by titanium(IV) n-butoxide. 2D NMR and MALDI-Tof-MS spectroscopy proved that this polymerization resulted in isomerization of maleic acid units into fumaric ones and in the formation of slightly branched structures by the reaction of isosorbide (end) groups with main chain unsaturated bonds. Moreover, some double bonds proved to have reacted with the condensation by-product water. The resulting polyesters displayed the expected correlation between variables such as molecular weight and content of unsaturated bonds and their Tg values. Since the thermal properties of the obtained polyesters were appropriate for coating applications, the polymers were cross-linked with unsaturated monomers by radical copolymerization. The cross-linking process was studied using FT-IR spectroscopy and by measurements of the soluble part of the cured coatings.

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Authors (2)

Lidia Jasińska-Walc dr hab. inż.
Cor E. Koning

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Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY no. 48, pages 2885 - 2895,
ISSN: 0887-624X
Language:: English
Publication year:: 2010
Bibliographic description:: Jasińska-Walc L., Koning C.: Unsaturated, biobased polyesters and their cross-linking via radical copolymerization// JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY. -Vol. 48, nr. iss. 13 (2010), s.2885-2895
DOI:: Digital Object Identifier (open in new tab) 10.1002/pola.24067
Verified by:: Gdańsk University of Technology