Synthesis and Properties of Fully Biobased Plastics from Biuret and Diamines

Abstract

In this work, fully biobased polybiurets (PBUs) were prepared from the polymerizations of biuret, a green and environmentally friendly chemical derived from urea, with 1,10-decanediamine and 1,6-hexanediamine. No solvent and no catalyst is needed in such polymerizations. Both biuret and urea functions can be observed in the obtained products. The PBUs possess higher glass transition temperature than the corresponding polyureas (~40 °C higher). The strength at break achieves as high as 77 MPa. The mechanical and thermal properties of the PBUs can be feasibly tuned by altering the proportions of the two diamines. It is provided in this work a new strategy in the construction of biobased polymers with high performance.

Keywords

Biobased / Polybiuret / Solvent-free / Catalyst-free

Acknowledgments

The authors are grateful for the supports of the Fund of Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates (South China University of Technology, No.2023B1212060003).

Author Contributions

Conceptualization, D.T. and B.P.; Methodology, D.T., B.P. and Y.C.; Validation, D.T., B.P. and Y.C.; Formal Analysis, B.P. and Y.C.; Investigation, D.T.; Resources, D.T.; Data Curation, B.P. and Y.C.; Writing—Original Draft Preparation, Y.C.; Writing—Review & Editing, D.T. and Y.C.; Supervision, D.T.; Project Administration, D.T.; Funding Acquisition, D.T.

Ethics Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

Funding

This research was funded by the Fund of Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates (South China University of Technology, No. 2023B1212060003).

Declaration of competing interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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