(Bio)degradable Ionomeric Polyurethanes Based on Xanthan: Synthesis, Properties, and Structure
| Autor: | V. I. Shtompel, N. V. Babkina, A.N. Brykova, Tamara Travinskaya, Yu. V. Savelyev |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Article Subject 02 engineering and technology Polymer Chemical interaction Biodegradation lcsh:Chemical technology 010402 general chemistry 021001 nanoscience & nanotechnology Polysaccharide 01 natural sciences Environmentally friendly 0104 chemical sciences chemistry.chemical_compound chemistry Degradation (geology) Organic chemistry lcsh:TP1-1185 0210 nano-technology Alkaline hydrolysis Polyurethane |
| Zdroj: | International Journal of Polymer Science, Vol 2017 (2017) |
| ISSN: | 1687-9422 |
| DOI: | 10.1155/2017/8632072 |
| Popis: | New (bio)degradable environmentally friendly film-forming ionomeric polyurethanes (IPU) based on renewable biotechnological polysaccharide xanthan (Xa) have been obtained. The influence of the component composition on the colloidal-chemical and physic-mechanical properties of IPU/Xa and based films, as well as the change of their properties under the influence of environmental factors, have been studied. The results of IR-, PMS-, DMA-, and X-ray scattering study indicate that incorporation of Xa into the polyurethane chain initiates the formation of a new polymer structure different from the structure of the pure IPU (matrix): an amorphous polymer-polymer microdomain has occurred as a result of the chemical interaction of Xa and IPU. It predetermines the degradation of the IPU/Xa films as a whole, unlike the mixed polymer systems, and plays a key role in the improvement of material performance. The results of acid, alkaline hydrolysis, and incubation into the soil indicate the increase of the intensity of degradation processes occurring in the IPU/Xa in comparison with the pure IPU. It has been shown that the introduction of Xa not only imparts the biodegradability property to polyurethane, but also improves the mechanical properties. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text