Biomass-derived, functional step-growth polymers for coating applications

B.A.J. Noordover, R. Duchateau, C.E. Koning, R.A.T.M. Benthem, van

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Abstract

Polymers derived from biomass form a fascinating and increasingly important field of research, as such macromolecules offer differentiated material properties as compared to conventional polymers from fossil feedstock. We present a range of fully aliphatic step-growth polymers based on monomers from renewable resources, designed for thermosetting coating applications. For such coating systems, stringent requirements exist in terms of polymer functionality, mechanical performance and thermal stability. 1,4:3,6-dianhydrohexitols were successfully incorporated in amorphous polyesters and polycarbonates through several polycondensation methods, achieving molecular weights and thermal properties suitable for the envisioned application. In addition, the polymer functionality was controlled to facilitate efficient curing into thermosetting polyurethane networks. The polymers were subjected to detailed molecular characterization, affording information concerning reactivity differences between the different DAH isomers, chain topology and end-group structures. Curing of the polymer resins using various curing agents led to glossy, transparent, hard coatings having excellent chemical and mechanical stability.
Original languageEnglish
Title of host publicationProceedings of the 241st ACS National Meeting - Biobased monomers, polymers and materials, Anaheim, USA
Place of PublicationAnaheim, USA
Pages1-3
Publication statusPublished - 2011

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