Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (7): 1475.

• Articles • Previous Articles     Next Articles

Structure and Miscibility on the Composites of Polysilsesquioxane and Hyperbranched Polyester

WU Jie-Li1,2, ZHAO Hui-Peng1,3, CHEN Qun1, HE Lin2, XU Min1*   

  1. 1. Shanghai Key Laboratory of Magnetic Resonance, Department of Physics, East China Normal University, Shanghai 200062, China;
    2. Instrumental Analysis Center, Shanghai Jiaotong University, Shanghai 200240, China;
    3. Research Center for Analysis and Measurement, Donghua University, Shanghai 200051, China
  • Received:2009-09-14 Online:2010-07-10 Published:2010-07-10
  • Contact: XU Min. E-mail: xumin@phy.ecnu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20874029)和上海市启明星计划(批准号: 07QA14018)资助.

Abstract:

A hydroxyl group ended hyperbranched polyester generation 4(G4) with trimethylolpropane(TMP) as a core and 2,2-dimethylol propionic acid(DMP) as a branched monomer weighted about 12100 was synthesized by a semi-one pot method. G4 was introduced into polymethyl silsesquioxane(PMSQ) system, and a series of G4/PMSQ composite membranes were prepared. Solid state NMR was used to characterize the structures of the composites. By measuring the 1H T1ρ, the miscibility of the two components of the composite was also studied.

Key words: Hyperbranched polyester; Polysilsesquioxane; Solid state NMR; Miscibility

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