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研究领域

1功能性有机-无机杂化及复合材料的制备与性能 通过分子设计合成和制备带有官能基团如带有不饱和双键、羧基、氨基、环氧基团、有机金属基团、稀土元素等的新型有机-无机纳米杂化材料。将其作为大分子单体或组分通过共聚或共混制备新型的,获得高耐热、发光、增强、介电、磁性等杂化高分子材料。 2 大规模有序纳米结构自组装材料 纳米材料的发展目前已从纳米颗粒的制备向着更高层次的大规模纳米有序组装材料发展。双嵌段共聚物根据双组分分子量的不同经过微相分离可以形成球形、圆柱形、球形等相态结构,根据这一特点,本研究方向选择和制备新型的双嵌段共聚物,并与新型纳米材料、量子点材料结合,在硅晶片等基体上形成纳米膜结构,通过溶剂、热、电、纳米印刷等方法“梳理”分子链结构,使之成为长程有序的纳米序列结构材料。为开发下一代的超大容量存储器、太阳能电池、传感器、催化材料等打下基础。 3 新型生物杂化材料研究 通过制备新型的纳米结构材料,如官能化的多面硅备半氧烷、量子点材料与蛋白质药物、多肽物质相结合,制备新型的可控药物释放材料、病变细胞探测材料,研究其中存在的科学问题。

近期论文

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1)Qifang Li, Jinbo He, Elizabeth Glogowski, Xuefa Li, Jin Wang, Todd Emrick, Thomas P. Russell,Advanced Materials, in press. Responsive Assemblies: Gold Nanoparticles with Mixed Ligands in Microphase separated Block Copolymers 2)张锐,李齐方,六聚笼型硅倍半氧烷的合成及解离研究,化学通报,2007,4,299 3)Xiao Yan SONG, Hai Ping GENG, Qi Fang LI,Synthesis and Characterization of Ferrocenyl SubstitutedStyryl Octasilsesquioxane, Chinese Chemical Letters,2006,17(4),427-430 4)Qi Fang Li,1, Kun Lu, QingQuan Yang,Riguang Jin, The Effect of Different Metallic Catalysts on the Coreaction of Cyanate/Epoxy,Journal of Applied Polymer Science, 2006,100,2293-2302 5)Qi Fang Li Kun Lu Qing Zhou Doo Hyuan Baik, A study on interfacial mechanisms and structure of poly(ethylene-co-methacrylic acid)/copper with reflection–absorption infrared spectroscopy, J Mater Sci, 2006, 41:8271–8275 6)Xiao Yan Song , Hai Ping Geng, Qi Fang Li,The synthesis and characterization of polystyrene/magnetic polyhedral oligomeric silsesquioxane (POSS) nanocomposites ,Polymer, 2006,47,3049–3056 7)姚旭霞,李齐方,沈之荃,多面齐聚硅倍半氧烷进展,化学通报,2006,3,161 8)Qifang Li, Ming Tian, Liqun Zhang, Donggil Kim, Riguang Jin, ”Compatibility and thermal properties of poly(acrylonitrile-butadiene-styrene) copolymer blend with PMMA and SMA”, J. Appl. Polym. Sci. 85(13),2652-2660,2002. 9)Qifang Li, Donggil Kim, Dezhen Wu, Kun Lv, Riguang Jin,”Effect of Maleic Grafting Ratio on Mechanical Properties and Morphology of Nylon11/Ethylene-Octene Copolymer Blend”, Polym.Eng.Sci. 41(12),2155,2001 10)ifang Li, Ming Tian, Donggil Kim, Dezhen Wu, Riguang Jin, ”Fracture and Impact Properties of Modified Nylon11”, J. Appl. Polym. Sci. 83(7),1600,2002.

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