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Investigations on the synthesis and properties of biodegradable poly(ester-carbonate-urea-urethane)s Cover

Investigations on the synthesis and properties of biodegradable poly(ester-carbonate-urea-urethane)s

Open Access
|Dec 2013

Abstract

A new method of the synthesis of oligo(tetramethylene succinate-co-carbonate) diols using dimethyl succinate, 1,4-butanediol and tetramethylene bis(methyl carbonate) was elaborated. The resultant oligomerols (Mn = 2600- 3700) were characterized by FTIR, 1H NMR, GPC and DSC analysis. Depending on the content of carbonate units in the polymer molecules, the melting point of the crystalline phase changes significantly. The synthesis of poly(ester-carbonate-urea-urethane)s was carried out with two aliphatic diisocyanates - cyclic IPDI or linear HDI. The resultant products exhibited very good mechanical properties - tensile strength up to 60 MPa and elongation at break about 500%. Preliminary studies confirmed that the presence of ester units in the soft segments as well as lack of crystalline phase significantly enhances the biodegradability of the PUR in comparison to that of polyurethanes based on carbonate oligomers.

Language: English
Page range: 80 - 88
Published on: Dec 31, 2013
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open

© 2013 Magdalena M. Mazurek, Gabriel Rokicki, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons License.

Volume 15 (2013): Issue 4 (December 2013)