Article
  • Synthesis of Aromatic Polysmide from N-Methyl Carbazole-3,6-Diamine and Diacid Chloride
  • Kim SH, Hong SI
  • N-Methyl Carbazole-3,6-Diamine과 Diacid Chloride로부터 바향족 폴리아미드의 합성
  • 김수현, 홍성일
Abstract
N-methylcarbazole -3, 6-diamine was synthesized from the carbazole by N-methylation, nitration and reduction of nitro groups. Aromatic polyamides containing carbazole unit were synthesized by the solution polycondensation of N-methylcarbazole-3, 6- diamine with terephthaloyl and isophthaloyl chloride at the low temperature. The monomer and polymers sysnthesized were identified by means of IR, NMR and MS. The optimum polymerization conditions were as follows; Reactants concentration: 0.12 mole/l for N-methylcarbazoleterephthalamide(NMCTA) and 0.32 mole/1 for N- methylcarbazole isophthalamide(NMCIA). Polymerization temperature : 25℃, Solvent: NMP+5% LiCl. NMCTA and NMCIA did not melt but decomposed above 420℃. The weight loss of NMCTA was 10% at 475℃ and 50% at 670℃. On the whole, NMCTA showed better thermal stability than NMCIA.

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1985; 9(3): 219-229

    Published online Jun 25, 1985

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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