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Aliphatic polycarbonate resins for radiation curable powder coatings
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0003-3201-5138
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0002-9372-0829
2005 (English)In: Progress in organic coatings, ISSN 0300-9440, E-ISSN 1873-331X, Vol. 54, no 4, 269-275 p.Article in journal (Refereed) Published
Abstract [en]

Thermosetting resins based on semi-crystalline poly(dimethyl trimethylene carbonate) (PDTC) were synthesised and characterised. Polymers with linear and branched architectures were synthesised through cationic ring opening polymerisation (CROP) of dimethyl trimethylene carbonate (DTC) using a series of polyols as initiators and fumaric acid as catalyst. The best powders were stable during storage at 45 degrees C for one week and could subsequently form films at temperatures between 100 and 115 degrees C. Functionalisation of the resins with methacrylic anhydride enabled curing by UV-initiated radical polymerisation. Rheology measurements showed that the architecture had a significant effect on the melt viscosity, which shows that the rheological properties can be tuned for use as low temperature curing powder coatings.

Place, publisher, year, edition, pages
2005. Vol. 54, no 4, 269-275 p.
Keyword [en]
powder coatings, polycarbonate, UV-curing, hyperbranched polymers, semi-crystalline polymers, rheological properties, polyesters, viscosity, behavior
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:kth:diva-15180DOI: 10.1016/j.porgcoat.2005.06.005ISI: 000233314500001Scopus ID: 2-s2.0-27644571283OAI: oai:DiVA.org:kth-15180DiVA: diva2:333221
Note

QC 20100525

Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Johansson, Mats K. G.Hult, Anders

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