Effect of the molecular weight on the plasticization properties of poly(hexane succinate) in poly(vinyl chloride) blends |
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| Authors: | Chuanhui Gao Bo Wang Zunfu Hu Yuetao Liu Huizi Wang Xinhua Zhang Yumin Wu |
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| Affiliation: | 1. Institute of Chemical Engineering, Qingdao University Science and Technology, Qingdao 266042, China;2. Institute of Chemical Engineering, Qingdao University Science and Technology, Qingdao 266042, China School of Materials Science and Engineering, Linyi University, Linyi, 276000 China |
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| Abstract: | Blends of poly(vinyl chloride) (PVC) and poly(hexane succinate) (PHS) with various molecular weights were analyzed with respect to their mechanical properties, durability, and thermal stability. We found that the molecular weight of PHS played an important role in the plasticizing process, and the single glass-transition temperature (T g) of the PVC blends measured by dynamic mechanical analysis supported the complete miscibility between PHS and PVC. The plasticizing efficiency of PHS increased as the molecular weight increased; this reflected the gradually increasing elongation at break and the decreased T g of the PVC blend. Meanwhile, the higher molecular weight of PHS also improved the resistance of migration and thermal stability but decreased the biodegradability of the PVC blends; this was due to the strong intermolecular interactions between PHS and PVC. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47081. |
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| Keywords: | biopolymers and renewable polymers composites polycondensation |
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