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Characterization and Biocompatibility with Dispersed Solutfon of PLA-POE-PLA Block Copolymer  

Lee, Chan-Woo (Department of Innovative Industrial & Technology, Hoseo University)
Kim, Hong (Department of Innovative Industrial & Technology, Hoseo University)
Song, Kyung-Hun (Department of Clothing & Textiles, Paichai University)
Moon, Sung-Il (Department of Polymer Science and Engineering, Kyoto Institute of Technology)
Publication Information
Polymer(Korea) / v.26, no.2, 2002 , pp. 174-178 More about this Journal
Abstract
PLLA-POE-PLLA block copolymers were prepared using PLLA and POE with different compositions. Copolymers were obtained in high yield and the polydispersity of the copolymers was very narrow. A dispersed solution of 0.1 g/mL of PLLA-POE-PLLA copolymer was mixed with a dispersed solution of 0.1 g/mL of PDLA-POE-PDLA copolymer. Gel formation was observed from the mixed product obtained at the human body temperature of $37^{\circ}C$. The mixed product comprising PDLA-POE-PDLA and PLLA-POE-PLLA was found to have higher cloud points than that of PLLA-POE-PLLA copolymer. The cloud points decreased with increasing the concentration of the mixed copolymer dispersed solution.
Keywords
block copolymer; polydispersity; dispersed solution; cloud point;
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