Synthesis and properties of novel selenium containing polyimides with various dianhydrides


Koytepe S. , SECKIN T. , CETINKAYA E., GOK Y.

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS, cilt.15, ss.269-279, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 15 Konu: 2
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1007/s10904-005-5544-2
  • Dergi Adı: JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
  • Sayfa Sayıları: ss.269-279

Özet

Novel selenium-containing polyimides were prepared from bis(1,3-di-p-dimethylaminobenzylpyrimidine-2- selenon) and bis(1,3-di-p-dimethylaminobenzyldiazepane-2-selenon) and with various aromatic dianhydrides in a one-stage polycondensation at high temperature in N-methyl-2-pyrrolidone. The polyimides have inherent viscosities that range from 1.55 to 2.05 dL/g in NMP at 30 degrees C. These polymers showed glass transition temperatures between 188 and 268 degrees C, and an initial decomposition temperature from 421 to 502 degrees C with a 10% mass loss occurring from 480 to 547 degrees C in air.