| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5203964 | Polymer Degradation and Stability | 2007 | 12 Pages |
Abstract
Blends of two biodegradable polymers: natural pectin and synthetic poly(ethylene oxide) at different weight-ratios were obtained by physical mixing in aqueous solutions, and evaporation of the solvent. The macromolecular order in the composites was investigated by applying X-ray diffraction, while the surface morphology was observed using atomic force microscopy. The photooxidative degradation of the blends was studied by viscometry, FTIR spectroscopy and UV-vis spectroscopy. It has been found that the susceptibility of the studied composites to UV radiation depends on an appropriate ratio of components, and the most sensitive to UV-irradiation among the samples studied was the equal weight-ratio blend of poly(ethylene oxide)/pectin.
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Authors
Halina Kaczmarek, Krzysztof Bajer, Piotr GaÅka, Barbara Kotnowska,