Methacrylated Dendrimers in Thiol-Methacrylate Networks and the Effect of Conversion on the Thermoset Properties
2009 (English)In: Journal of Polymer Science Part A: Polymer Chemistry, ISSN 0887-624X, E-ISSN 1099-0518, Vol. 47, no 21, 5815-5826 p.Article in journal (Refereed) Published
A series of well-defined methacrylate-functionalized polyester dendrimers based on 2,2-bis(methylol)propionic acid (bis-MPA) has been synthesized divergently. The thermal properties and conversion of the methacrylate functional dendrimers are investigated along with the structure-property relationship of networks composed of the methacrylate dendrimers and two commercially available trifunctional thiols, trimethylolpropane tri(3-mercaptopropanoate) (TRIS) and ethoxylated trimethylolpropane tri(3-mercaptopropanoate) (ETTMP). The thiol-methacrylate reactions were conducted at room temperature, under ambient conditions, and triggered by UV light in the presence of a photoinitiator. Crosslinked films were obtained and characterized with respect to conversion (FT-Raman) and thermal (DSC and TGA) properties.
Place, publisher, year, edition, pages
2009. Vol. 47, no 21, 5815-5826 p.
conversion, endrimers, networks, thermogravimetric analysis, thiol-methacrylate films, acrylate photopolymerizations, dendritic macromolecules, ene, photopolymerization, aliphatic polyesters, physical-properties, oxygen, inhibition, melt viscosity, kinetics, behavior, functionalization
IdentifiersURN: urn:nbn:se:kth:diva-18950DOI: 10.1002/pola.23625ISI: 000271669700023ScopusID: 2-s2.0-70349759683OAI: oai:DiVA.org:kth-18950DiVA: diva2:336997
QC 201005252010-08-052010-08-052011-02-03Bibliographically approved