Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Synthesis and Characterization of Novel Aromatic Polyimides from Bis (3-aminophenyl) 3,5-bis (trifluorormethyl) phenyl Phosphine Oxide

  • Jeong, Kwang-Un (department of Materials Science and Engineering, Kwangju Institute of Science and Technology) ;
  • Kim, Jang-Joo (department of Materials Science and Engineering, Kwangju Institute of Science and Technology) ;
  • Yoon, Tae-Ho (department of Materials Science and Engineering, Kwangju Institute of Science and Technology)
  • Published : 2000.10.01
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Abstract

A novel diamine monomer, containing fluorine and phosphine oxide, bis(3-aminophenyl) 3,5-bis(trifluoromethyl)phenyl phosphine oxide (mDA6FPPO), was prepared via Grignard reaction, and utilized to prepare polyimides with dianhydrides such as PMDA, 6FDA, BTDA or ODPA, by the conventional two-step route; preparation of poly(amic acid), followed by solution imidization. The polyimides were characterized by FT-IR, NMR, and DSC with intrinsic viscosity and refractive index also being evaluated. A phosphine oxide containing monomer, bis(3-aminophenyl)phenyl phosphine oxide (mDAPPO) and a commercial 3,3-diaminodiphenyl sulfone (mDDS) were also used for comparison. The polyimides derived from mDA6FPPO exhibited high T$\sub$g/, excellent solubility and low birefringence.

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