Abstract
Biodegradable polymeric blends are expected to be widely used by industry due to their environmental friendliness and comparable mechanical and thermal properties. In this study, blends of poly(propylene carbonate) (PPC) and poly(ethylene-co-vinyl acetate) (EVA) were prepared. Fourier transform infrared (FTIR) analysis revealed that there were some possible specific interactions between PPC and EVA. The differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) results showed a single temperature peak of T g between that of pure PPC and that of pure EVA, which suggested that PPC and EVA were compatible. Because of the interfacial interaction between PPC and EVA, EVA could greatly improve the tensile strength, the glass transition temperature and the thermal stability of PPC matrix. Rheological investigation demonstrated that there was a significantly dependence of viscosity on composition. When the EVA content increased, the viscosity began to increase. The PPC/EVA blends could be used as a common biodegradable material for a wide application.
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This work was supported by the fund of Science & Technology Bureau of Jilin Province of China (No. 20126023), the National High Technology Research and Development Program of China (863 Program) (No. 2012AA062904) and the National Science Foundation of China (51021003).
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Wu, D., Li, W., Hao, Y. et al. Mechanical properties, miscibility, thermal stability, and rheology of poly(propylene carbonate) and poly(ethylene-co-vinyl acetate) blends. Polym. Bull. 72, 851–865 (2015). https://doi.org/10.1007/s00289-015-1310-y
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DOI: https://doi.org/10.1007/s00289-015-1310-y