• Hydrolysis Degradation of Star-shaped Poly-L-lactide
  • Kim SH, Kim YH
  • 스타형 폴리락티드의 가수분해 거동
  • 김수현, 김영하
Abstract
The poly-L-lactide was synthesized by ring-opening polymerization of L-lactide with stannous octoate. Star-shaped poly-L-lactide was also prepared by the addition of pentaerythritol. The hydrolysis degradation behavior of linear and star-shaped poly-L-lactides was investigated. The star polymer showed a lower decrease rate of molecular weight than the linear one in the initial stage since it has multi chain arms.

락티드를 stannous octoate촉매로서 개환중합하여 선형 폴리락티드를 중합하였고, 펜타에 리트리톨을 첨가하여 스타형 폴리락티드를 제조하였다. 스타형 및 선형 폴리락티드의 가수분해 거동을 분석한 결과, 스타형 구조는 chain arm의 수가 많으므로 초기에는 직선형 수조보다 분자량의 감소가 지연되었으나 어느 시점 이후에는 오히려 가수분해가 가속되는 현상이 관찰되었다.

Keywords: polyactide; hydrolysis; star-shaped

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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

  • 1996; 20(3): 528-534

    Published online May 25, 1996