Open Access

ARTICLE

Fully Renewable Thermoplastic Poly(ester urethane urea)s from Bio-based Diisocyanates

by

1 Laboratory of Polymer Materials, Eindhoven University of Technology , P.O. Box 513, 5600 MB, Eindhoven, the Netherlands
2 Dutch Polymer Institute, P.O. Box 902, 5600 AX Eindhoven, the Netherlands
3 Food & Biobased Research, Wageningen University and Research Center, P.O. Box 17, 6700 AA, Wageningen, the Netherlands

* Corresponding Author:

Journal of Renewable Materials 2013, 1(3), 222-230. https://doi.org/10.7569/JRM.2013.634116

Received 26 March 2013; Accepted 29 April 2013;

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 (b2 DA). 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 (b2 DA) instead of the monomeric diamines, the properties of the LDI-based PEU can be improved signifi cantly. For instance, the fl ow 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.

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Keywords

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