New thermoplastic poly(carbonate-urethane) elastomers

• Authors: Anna Kultys , Magdalena Rogulska
• Languages of publication: EN

Abstracts

EN

Two series of novel thermoplastic poly(carbonate-urethane) elastomers, with different hard-segment content (30 - 60 wt %), were synthesized by melt polymerization from poly(hexane-1,6-diyl carbonate) diol of Mn = 2000 as a soft segment, 4,4'-diphenylmethane diisocyanate (MDI) or hexane-1,6-diyl diisocyanate (HDI) and 6,6'-[methylenebis(1,4-phenylenemethylenethio)]dihexan-1-ol as a chain extender. The structure and basic properties of the polymers were examined by Fourier transform infrared spectroscopy, X-ray diffraction analysis, atomic force microscopy, differential scanning calorimetry, thermogravimetric analysis, Shore hardness and tensile tests. The resulting TPUs were colorless polymers, showing almost amorphous structures. The MDI-based TPUs showed higher tensile strengths (up to 21.3 MPa vs. 15.8 MPa) and elongations at break (up to 550% vs. 425%), but poorer low-temperature properties than the HDI-based analogs.

Keywords

EN

thermoplastic polyurethane elastomers; poly(hexane-1,6-diyl carbonate) diol; 4,4'-diphenylmethane diisocyanate; hexane-1,6-diyl diisocyanate; thermal and mechanical properties; atomic force microscopy

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2011
• Volume: 13
• Issue: 1
• Pages: 23-30

Dates

published

1 - 1 - 2011

online

17 - 3 - 2011

Contributors

author

Anna Kultys

• Department of Polymer Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, ul. Gliniana 33, 20-614 Lublin, Poland

author

Magdalena Rogulska

• Department of Polymer Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, ul. Gliniana 33, 20-614 Lublin, Poland

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Identifiers

DOI

10.2478/v10026-011-0005-x