Mechanical properties, miscibility, thermal stability, and rheology of poly(propylene carbonate) and poly(ethylene-co-vinyl acetate) blends

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• 作者：Dandan Wu (1) (2)
  Wu Li (1) (2)
  Yanping Hao (1) (3)
  Zonglin Li (1)
  Huili Yang (1)
  Huiliang Zhang (1)
  Huixuan Zhang (2)
  Lisong Dong (1)
  
  1. Key Laboratory of Polymer Ecomaterials ; Chinese Academy of Sciences ; Changchun Institute of Applied Chemistry ; Changchun ; 130022 ; China
  2. Engineering Research Center of Synthetic Resin and Special Fiber ; Ministry of Education ; Changchun University of Technology ; Changchun ; 130012 ; China
  3. College of Chemistry ; Jilin University ; Changchun ; 130012 ; China
  
• 关键词：Biodegradability ; Poly(propylene carbonate) ; Poly(ethylene ; co ; vinyl acetate) ; Miscibility ; Thermal stability
• 刊名：Polymer Bulletin
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：72
• 期：4
• 页码：851-865
• 全文大小：382 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  Characterization and Evaluation Materials
  Soft Matter and Complex Fluids
  Physical Chemistry
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1436-2449

文摘

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.