• Synthesis and Physical Properties of Hyperbranched Aromatic Polyamide
  • Ok CY, Kim JY, Huh W, Lee SW
  • 고차가지구조 방향족 폴리아미드의 합성 및 물성
  • 옥창율, 김장엽, 허완수, 이상원
Abstract
The aromatic hyperbranche dpolyamide was synthesized from 5-aminoisophthalic acid by direct polycondensation with triphenylphosphite (TPP) catalyst as a condensing agent. The modification of end-groups in the resulting hyperbranched polymer (HBP) with various alkyl alcohols were conducted. The modification of end-groups of HBP by alkyl groups resulted in an improved solubility in the THF comparing to that of the carboxylic acid-terminated aromatic HBP. Also, 10 wt% weight loss temperature decreased by increasing the length of alkyl group.

AB2형 단량체인 5-aminoisophthalic acid로부터 TPP를 촉매를 이용한 축중합 반응을 통하여 고차가지구조 방향족 폴리아미드를 합성하엿다. 합성된 고차가지구조 고분자의 카복시 말단을 에탄올, 헥산올, 도데칸올로 에스테르화하여 그 특성을 연구하였다. 카복시 말단의 고차가지구조 고분자에 비해 알킬기가 차환된 고차가지구조 고분자의 용해도가 증가하였다. 또한 말단의 알킬기의 길이가 길어짐에 따라 10 wt% 무게 감소 온도가 감소하였다.

Keywords: hyperbranched polyamide; 5-aminoisophthalic acid; thermal property; solubility

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2024 Impact Factor : 0.6
  • Indexed in SCIE

This Article

  • 2005; 29(6): 571-574

    Published online Nov 25, 2005

  • Received on Aug 19, 2005
  • Accepted on Nov 1, 2005