SYNTHESIS AND CHARACTERIZATION OF HYDROPHOBIC-HYDROPHILIC MULTIBLOCK COPOLYMERS FOR BIOMEDICAL APPLICATIONS

查看全文 作　　者：Yong Kiel [1]Sung;Yong Joo [1]Kim;Sung Wan [1]Kim 机构地区：[1]Department of Chemistry, College of Natural Science, Dongguk University, 3Ga 26, Phildong,Junggu, Seoul 100-715, Korea,Reliability Technology Division, NITQ, 2 Chungangdong, Kwachoncity Kyunggido 427-010, Korea,Center for Controlled Chemical Delivery, University of Utah, Salt Lake City, Utah 84112, U. S. A. 出　　处：《Chinese Journal of Polymer Science》索引1999年第17卷第2期,共10页 摘　　要：The synthesis and characterization of amphiphilic copolymers of poly(dimethyl siloxane)(PDMS),poly(ethylene oxide)(PEO), and heparin(Hep) were investigated. These multiblock copolymers wereidentified using ~1H-NMR, FTIR, end group analysis, and sulfur elemental analysis. The multiblockcopolymers were characterized by using DSC and X-ray diffractometry. The glass transition temperature,crystalline melting characteristics, annealing effect, and cold crystallization of the block copolymers weredetermined by DSC. The crystallinity of the block copolymers was also determined by X-ray diffractionmethod. 关 键 词：Heparinized BLOCK COPOLYMER BIOMEDICAL POLYMER Synthesis Characterization