Note
  • Preparation and Properties of Biodegradable Hydrogels from Poly(2-hydroxyethyl aspartamide) and HMDI
  • Kim JH, Sim SJ, Lee DH, Kim D, Lee Y, Kim JH
  • HMDI 가교 폴리아스팔트아미드 수화젤의 제조 및 특성
  • 김정훈, 심상준, 이동현, 김덕준, 이영관, 김지흥
Abstract
Biodegradable polymers and hydrogels have been increasingly applied in a variety of biomedical applications including current drug delivery system and tissue engineering field. α,β-Poly(N-2-hydroxyethyl-DL-aspart-amide), PHEA, is one of poly(amino acids) with hydroxyethyl pendants, which is known to be biodegradable and potentially biocompatible. So that, the utilization and various chemical modifications of PHEA have been attempted for useful biomedical applications. In this work, chemical gels based on PHEA were prepared by crosslinking with diisocyanate compound in DMF in the presence of catalyst. Here, the PHEA was prepared from polysuccinimde, the thermal polycondensation product of aspartic acid, viaring-opening reaction with ethanolamine. The preparation of gels and their swelling behavior, depending on the different medium and pH, were investigated. Also the morphology by SEM and simple hydrolytic degradation were observed.

생분해성 고분자와 수화젤의 약물 전달 시스템과 조직 공학을 포함하는 다양한 생의학적인 응용이 점차확대되고 있다. 하이드록실 pendant group을 갖고 있는 폴리아미노산의 하나인 PHEA는 뛰어난 생분해성과 우수한 생체적합성을 갖는 고분자로 알려져 있다. PHEA 및 그 유도고분자를 제조하고 이를 다양한 생의학적인 응용에 적용하는 연구가 진행 되어 왔다. 본 연구에서는 유기용매에서 가교제인 HMDI를 사용하여 PHEA 수화젤을 제조하였다. PHEA는 아스팔트산의 열 축중합에 의해 합성한 polysuccinimide와 ethanolamine과의 고분자 반응으로부터 제조하였다. 제조한 수화젤에 대한 서로 다른 수용액과 pH 용액에서의 팽윤 거동을 조사하였고, SEM을 통한 수화젤의 모폴로지와 가수분해 거동을 관찰하였다.

Keywords: hydrogel; biodegradable; polyaspartamide; swelling behavior

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2005; 29(5): 518-521

    Published online Sep 25, 2005

  • Received on Jun 22, 2005
  • Accepted on Aug 24, 2005