Preparation of Polystyrene-Polyimide Particles by Dispersion Polymerization of Styrene Using Poly(amic acid) as a Stabilizer

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概要

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• Dispersion polymerization of styrene (S) and a cationic comonomer, 4-(vinylbenzyl)trimethylammonium chloride (VBA) was conducted in alkaline aqueous ethanol using various aromatic poly(amic acid)s (PAA) as stabilizers. The monodisperse particles were obtained in high yield using the optimum composition of solvent mixture depending on the PAA structure. By using a cationic comonomer (VBA), PAA was incorporated quantitatively into the particles. On the other hand, using cationic methacrylates as a comonomer, PAA was not incorporated effectively. The imidization of PAA on the particles proceeded with acetic anhydride and 4-(dimethylamino)pyridine to form PS-polyimide (PS-PI) particles. The PS-PI particles were maintained in spherical shape by the thermal treatment up to 240℃. PI hollow particles were also obtained by washing PS-PI particles with toluene.

• 社団法人 高分子学会の論文
• 2006-05-15

著者

• Watanabe S

  Department Of Materials Science And Engineering Kitami Institute Of Technology

• Yuichi Masuda

  Department Of Chemistry Faculty Of Science Ochanomizu University

• Watanabe Shinji

  Kitami Inst. Of Technol. Kitami Jpn

• WATANABE Shinji

  Department of Orthopaedic Surgery, Miyazaki Medical College

• UENO Kenji

  Department of Materials Science and Engineering, Kitami Institute of Technology

• MURATA Miki

  Department of Materials Science and Engineering, Kitami Institute of Technology

• MASUDA Yuzuru

  Department of Materials Science and Engineering, Kitami Institute of Technology

• Masuda Yuzuru

  Department Of Industrial Chemistry Kitami Institute Of Technology

• Ueno Kenji

  Department Of Materials Science And Engineering Kitami Institute Of Technology

• Ueno Kenji

  Department Of Chemistry The University Of Tokyo

• Watanabe Shinji

  Department Of Applied Physics University Of Tokyo

• Murata Miki

  Department Of Materials Science And Engineering Kitami Institute Of Technology

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