화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터)
권호 38권 1호
발표분야 의료용 고분자 부문위원회
제목 To characterize a unique diblock copolymers that have functional groups for network gel-forming system.
초록 We characterized a unique diblock copolymer network gel-forming system with controllable intra- and intermolecular interactions. FLA was synthesized with a benzyloxymethyl group at the 3-position of the lactide for subsequent derivatization. CL and fLA monomers were randomly copolymerized with varying feed ratios to prepare methoxy polyethylene glycol. PCL-ran-PfLA diblock copolymers. The diblock copolymers with varying PCL and PfLA ratios were further derivatized with benzyl, hydroxyl, or carboxylic acid groups. The MPEG-b-(PCL-ran-PfLA) diblock copolymer solutions exhibited sol-to-gel phase transitions upon a temperature increase which depended on both the type of functional pendant group on the PfLA and the PfLA content in the PCL segment. MCxLy-COOH diblock copolymer solutions immediately formed gels in vivo. and gradually degraded over a period of 0-6 weeks after injection. The MPEG-PCfLA diblock copolymer can be utilized as a potential injectable drug and cell carrier.
저자 박지훈, waqas iqbal, 심선우, 권진선, 권두연, 김재호, 김문석
소속 아주대
키워드 In situ forming gel; In situ forming gel; Phase transition; MPEG-b-(PCL-ran-PfLA) diblock copolymer; Crystallinity; Hydrophobicity
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