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 language | English |
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Title of host publication | Proceedings of the 241st ACS National Meeting - Biobased monomers, polymers and materials, Anaheim, USA |
Place of Publication | Anaheim, USA |
Pages | 1-3 |
Publication status | Published - 2011 |