Investigation of Temperature Dependency of Morphological Properties of Thermoplastic Polyurethane using WAXS and SAXS Monitoring
- Polyether and polyether/ester based TPU (thermoplastic polyurethanes) were investigated with wide-angle XRD (X-ray diffraction) and SAXS (small angle X-ray scattering). Furthermore, SAXS measurements were performed in the temperature range of 30 °C to 130 °C. Polyether based polymers exhibit only one broad diffraction signal in a region of 2 θ 15° to 25°. In case of polyurethanes with ether/ester modification, the broad diffraction signal arises with small sharp diffraction signals. SAXS measurements of polymers reveal the size and shape of the crystalline zones of the polymer. Between 30 °C and 130 °C the size of the crystalline zone changes significantly. The size decreases in most of investigated TPU. In the case of Desmopan 9365D an increase of the particle size was observed.
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| Document Type: | Article |
|---|---|
| Language: | English |
| Author: | Steffen Thomas Witzleben, Katharina Walbrueck, Stephanie Elisabeth Klein, Margit Schulze |
| Parent Title (English): | Journal of Chemistry and Chemical Engineering |
| Volume: | 9 |
| Issue: | 8 |
| First Page: | 494 |
| Last Page: | 499 |
| ISSN: | 1934-7375 |
| URN: | urn:nbn:de:hbz:1044-opus-23370 |
| DOI: | https://doi.org/10.17265/1934-7375/2015.08.002 |
| Publisher: | David Publishing |
| Publishing Institution: | Hochschule Bonn-Rhein-Sieg |
| Date of first publication: | 2015/08/28 |
| Funding Information: | The authors thank the German Ministry for Education and Research (BMBF) for financial support (Project LignoBau, funding number 03FH013IX4). |
| Note: | This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
| Keyword: | SAXS; Thermoplastic polyurethanes; WAXS; crystallinity; mechanical properties; morphology; temperature influence |
| Departments, institutes and facilities: | Fachbereich Angewandte Naturwissenschaften |
| Institut für Technik, Ressourcenschonung und Energieeffizienz (TREE) | |
| Projects: | LignoBau - IngenieurNachwuchs 2014: Lignin-basierte Polymere für bauchemische Anwendungen (DE/BMBF/03FH013IX4,13FH013IX4) |
| Dewey Decimal Classification (DDC): | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
| Entry in this database: | 2016/03/10 |
| Licence (German): |  Creative Commons - CC BY-NC - Namensnennung - Nicht kommerziell 4.0 International |
