Fully renewable thermoplastic poly(ester urethane urea)s from bio-based diisocyanates

D. Tang, S. Thiyagarajan, B.A.J. Noordover, C.E. Koning, D.S. Es, van, J. Haveren, van

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

A series of fully renewable poly(ester urethane urea)s (PEUs) were synthesized from bio-based starting materials, e.g., the polyester diol, the diisocyanates including L-lysine diisocyanate (LDI) and isoidide diisocyanate (IIDI), the chain-extenders including 1,4-diaminobutane (bDA), diaminoisoidide (iDA) and di(aminobutyl) urea (b2DA). It is found that the PEU based on the novel diisocyanate, IIDI, exhibits satisfactory thermal and mechanical properties. The LDI-based PEUs show less favorable thermal and mechanical properties than the IIDI-based counterpart, since the chemical structure of LDI is less regular than that of IIDI. However, by introducing a urea-containing dimeric diamine (b2DA) instead of the monomeric diamines, the properties of the LDI-based PEU can be improved significantly. For instance, the flow temperature increases 100°C and the E-modulus also increases from 1 MPa to approximately 20 MPa. These fully renewable PEUs seem to be interesting materials and they can potentially be used in biomedical or packaging applications.
Original languageEnglish
Pages (from-to)222-229
JournalJournal of Renewable Materials
Volume1
Issue number3
DOIs
Publication statusPublished - 2013

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