화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2003년 봄 (04/11 ~ 04/12, 연세대학교)
권호 28권 1호, p.304
발표분야 고분자 합성
제목 Novel Hydrophobically Modified Polyelectrolytes: Synthesis and Characterization of Phospholipid-Containing Polyampholytes
초록 The phosphatidyl derivatives of ethyl 3-aminocrotonate were synthesized for the first time from acetoacetic ester and phosphatidylethanolamine in the bulk, ethanol, and chloroform under mild conditions. They were involved ina Michael addition reaction with acrylic acid followed by radical polymerization. The polymers bearing both hydrophobic tails and betaine groups were characterized by FTIR, NMR, and UV-Vis spectroscopy as well as by TGA and DSC. The phase transition temperatures from the crystalline to the liquid crystalline as well as from the liquid crystalline to the isotropic state were determined. The conformational transition from the globular structure to the coiled one was evaluated from potentiometric titration and viscometry. The ability of phospholipid-containing polymers to solubilize hydrophobic molecules was shown.
저자 Dhriti Nepal;Sarkyt E. Kudaibergenov;Kurt E. Geckeler
소속 광주과학기술원 신소재공학과;광주과학기술원 신소재공학과;광주과학기술원 신소재공학과
키워드 Polyampholytes; Phospholipid; Hydrophobically Modified Polyelectrolytes
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