共搜索到846条信息,每页显示10条信息,共85页。用时:0小时0分0秒269毫秒
Synthesis and Applications of Tetra- functional Branched Poly(ethylene glycol) Derivative for the Decellularized Valve Leaflets Cross-linking胡行健1,董念国1,SHI Jiawei1,LI Huadong1,DENG Cheng1,LU Cuifen21...="ChDivSummary">To investigate the effects of polyethylene glycol cross-linking on the mechanical properties, 80 porcine aortic valves were harvested, decellularized, and introduced with sulfhydryl......
Trans. Nonferrous Met. Soc. China 25(2015) 314-318 Flotation of carbonaceous copper shale-quartz mixture with poly(ethylene glycol) alkyl ethers Przemyslaw B. KOWALCZUK, Emilia ZALESKA, Oliver DANCZAK Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, Wroclaw 50-370, Poland Received 21 February 2014; accepted 7 June 2014 Abstract: The influence of different poly(ethylene glycol) alkyl......
......
Solid State Structure and Lyotropic Mesomorphism of Rare-Earth Trisdodecylsulphates in the Water-Ethylene Glycol System Koen Binnemans1,Liesbet Jongen1 (1.Katholieke Universiteit Leuven, Department... technique was investigated. The lyotropic phase behaviour of lanthanide(Ⅲ) dodecylsulphates in ethylene glycol water in mixtures hereof, depends on the composition of the solvent. For pure ethylene......
熔融缩聚合成聚乳酸-聚乙二醇共聚物及其性能研究 娄维1,袁华1 (1.同济大学材料科学与工程学院纳米与生物高分子研究所,上海,200092) 摘要:采用羧基封端乳酸预聚物与聚乙二醇熔融缩聚合成了聚乳酸-聚乙二醇共聚物,并用GPC,FTIR,1H-NMR等方法表征了预聚物与共聚物,结果表明,预聚物的羧基封端率高于95%,预聚物的相对分子质量可由投料比(物质的量比)控制.热分析结果表明,共聚物中聚乳酸链段呈无规分布,而聚乙二醇链段能够形成结晶微区.力学性能测试结果表明,共聚物的断裂伸长率达371%,有望在聚乳酸韧性改性方面得到应用. 关键词:聚乳酸; 生物可降解; 聚乙二醇; 熔融缩聚; poly(L-lactic acid); biodegradable; poly(ethylene glycol); melt co-polycondensation; [全文内容正在添加中] ......
Effect of polyethylene glycol on electrochemically deposited trivalent chromium layers Joo-Yul LEE, Man KIM, Sik-Chol KWON Department of Surface Technology, Korea Institute... in the plating solution with and without polyethylene glycol molecules were observed by using various electrochemical methods such as cyclic voltammetry, open circuit potential transition......
of elements on Ir-Sn oxide coatings prepared from inorganic salt solution((a), (b), (c)) and inorganic salt solution modified by citric acid and ethylene glycol((d), (e), (f)) 2.2 对涂层电催化性能的影响 2.2.1 .... Effect of citric acid and ethylene glycol on structure and properties of IrO2-SnO2 coatings prepared by thermal decomposition of inorganic salt solution JIANG Yu-si, XIAO Fang-ming, YANG Rui (Guangdong......
-L-glutamate); poly (ethylene glycol); photo-crosslinking; hydrophility; antithrombogenicity; [全文内容正在添加中] ......
that the direct esterification reaction of terephthalate acid(TPA) with ethylene glycol(EG) can be accelerated by the addition of Ln3+ containing compound, which acts as a promoter of the catalyst Sb2O3......
crystallinity, high contrast and thin wall were prepared in the solutions of poly(ethylene glycol) (PEG) and oleic acid(OA) associations at the refluxed temperature. The complexes of Sb3... and associations of poly(ethylene glycol) (PEG) and oleic acid(OA) as precursors and templates, respectively. 2 Experimental 2.1 Preparation of hollow antimony microspheres Antimony chloride(SbCl3......