Synthesis of Branched Poly(butylene succinate):Structure Properties Relationship

作     者：Marie Vandesteene Nicolas Jacquel Rene Saint-Loup Nadège Boucard Christian Carrot Alain Rousseau Francoise Fenouillot 

作者机构：Unive LyonINSA-LyonIngenierie des Materiaux PolymeresIMPUMR5223F-69621VilleurbanneFrance Univ LyonUniversite Jean MonnetIngenierie des Materiaux PolymeresIMPUMR5223F-42023 Saint-EtienneFrance Roquette Freres.Polymer Chemistry DepartmentF-62136 LestremFrance MBD TexinovF-38110 Saint-Didier-de-la-TourFrance 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2016年第34卷第7期

页      面：873-888页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：financially supported by the company MBD Texinov(France) the company Roquette Frères(France) the ANRT the framework of the collaborative project Agroboost funded by BPI France Rhone-Alpes Region Rhone-Alpes FEDER the Basse Normandie Regional Council 

主　　题：Poly(butylene succinate) Branching Crystallization Properties 

摘      要：A series of branched poly（butylene succinate）（PBS） were synthesized with several branching agents namely trimethylol propane（TMP）, malic acid, trimesic acid, citric acid and glycerol propoxylate. The structure of the branched polymers was analyzed by SEC and ~1H-NMR. The effect of branching agent structure on crystallization was also investigated and played a significant role. Isothermal studies showed that glycerol propoxylate could act as a nucleating agent. By contrast high content of TMP disturbed the regularity of the chain and hindered the crystallization of PBS. From the non-isothermal kinetic study, it was found that glycerol propoxylate increased noticeably the crystallization rate due to the flexible structure of the branching agent. A secondary nucleation was observed with glycerol propoxylate attributed to the crystallization of amorphous fraction included between crystallites formed at the primary crystallization. Chain topology was obtained through rheological investigations and the synthesized polymers showed a typical behavior of a mixture of linear and randomly branched PBS. The incorporation of branches improved the processability of PBS for film blowing application and the modulus and the stress at break of the resulting film were significantly increased.