Preparation and characterization of polyurethanes from spinifex resin based bio-polymer

Mondal, Subrata, Memmott, Paul and Martin, Darren (2012) Preparation and characterization of polyurethanes from spinifex resin based bio-polymer. Journal of Polymers and the Environment, 20 2: 326-334.


Author Mondal, Subrata
Memmott, Paul
Martin, Darren
Title Preparation and characterization of polyurethanes from spinifex resin based bio-polymer
Journal name Journal of Polymers and the Environment   Check publisher's open access policy
ISSN 1566-2543
1572-8900
Publication date 2012-01-28
Sub-type Article (original research)
DOI 10.1007/s10924-012-0417-6
Volume 20
Issue 2
Start page 326
End page 334
Total pages 9
Place of publication New York, United States
Publisher Springer
Collection year 2013
Language eng
Abstract In this paper we explore the preparation of polyurethanes from spinifex resin biopolymer. Polyurethanes were prepared by both one-shot and pre-polymer (two step) processes. Attenuated total reflection—Fourier transform infrared analysis revealed urethane bond formation in both processes, and the peak intensity for N–H stretching was more sharp when the network was prepared by the pre-polymer method. Gel permeation chromatography revealed that the molecular weight of synthesized polyurethane increased with respect to the resin starting material, and the molecular weight was further increased when polyurethane was synthesized by the pre-polymer method. The glass transition temperature was also increased for the polyurethanes as compared with the starting resin. Thermo-gravimetric analysis revealed that the thermal stability of the PU-spinifex resin was reduced at intermediate temperatures due to the urethane bond formation. However, thermal degradation properties were superior at higher temperatures due to the cyclization degradation reaction of spinifex-polyurethane.
Keyword Bio-polymer
Polyurethane
Spinifex resin
Synthesis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Mon, 23 Apr 2012, 10:27:27 EST by Miss Susan Theiss on behalf of School of Biological Sciences