| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Synthesis and Rheological Properties of PBSu/PBAu Polyester Ureide Multiblock Copolymer |
| DAI Hong1,2, LIU Yuejun1,2, CUI Lingna2, LI Qiuai2
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1 Key Laboratory of Polymer Processing Principle and Application, Xiamen University of Technology, Xiamen 361024
2 Key Laboratory of New Materials and Technology for Packaging, Hunan University of Technology, Zhuzhou 412007 |
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Abstract Anovel biodegradable polymer material — polyester ureide multiblock copolymers (PBSu-b-PBAu) composed of poly(butylene-succinate-urea) (PBSu) and poly(butylene-adipate-uera) (PBAu) was synthesized with toluene-2,4-diisocyanate (TDI) as a chain extender by melt polymerization. The optimum chain-extending reaction condition was obtained by conducting the synthesis experiment under varied reaction duration, reaction temperatures and chain extender adding amounts, and by applying the single factor analysis method. According to the optimum polymerization condition, we synthesized a series of PBSu-b-PBAu block copolymers, differing in feed composition, and determined their mole-cular weight and rheological propertied by means of GPC, rotational rheometry and capillary rheometry, respectively. The results showed that the multiblock copolymers possess higher viscosity and superior elastic effect compared to either PBSu or PBAu.
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Published: 31 January 2019
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| Fund:This work was financially supported by the Science and Technology Planning Project of Fujian Province (2018H6024). |
| About author:: Hong Dai received her M.S. degrees in June 2017 from Hunan University of Technology, focusing on the research of the synthesis and modification of polyester acylurea.Yuejun Liu received his Ph.D. degree in Material Processing Engineering from South China University of Technology. Professor Liu has been working in the area of polymer rheology, polymer processing and packaging materials, and has extended his research into nanocomposites and degradable polymers. He has published over 100 peer-reviewed technical paper and over 20 patents until now. |
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2019, Vol. 33 
