美国Florida State University的曾长春博士来访

    应化学工程国家重点实验室（浙江大学）邀请，美国Florida State University的曾长春博士于2007年7月20日访问本室，并作学术报告。

    报告题目：Polymer Nanoengineering for Industrial and Biomedical Applications

       报告时间： 2007年7月20日（星期五）上午 9:00

       报告地点：玉泉校区 教十 2104

    欢迎有兴趣的师生参加！

曾长春博士简历：

Dr Zeng Changchun obtained his PhD in Chemical Engineering from The Ohio State University, and BS from Zhejiang University. For the past several years, Dr Zeng was a Senior Research Engineer at Hexcel Corporation, a US composite company. Dr Zeng recently accepted a faculty position in Department of Industrial and Manufacturing Engineering at Florida State University. Dr Zeng's main research interest is polymeric materials, composite materials and processing, nanoparticles and nanotechnlogy.  

报告摘要

Polymer Nanoengineering for Industrial and Biomedical Applications

Nanotechnology involves research and development at length scales of less than 100 nm to create materials, structures, devices and systems, which possess novel properties as the direct result of the small sizes. This talk focuses on the development of polymer based nanomaterials and nanostructures. Emphasis is given to employment of nanoparticles to synthesize and fabricate engineered nanostructured polymeric materials and devices for advanced technology needs. Several examples will be discussed. The first example deals with synthesis of high performance polymer nanocomposites and nanocomposite foams. A novel surface modification chemistry and polymerization technology is developed to achieve nanoscale uniform dispersion of clay nanoparticles in polymer matrices. Furthermore, polymer nanocomposite foams are developed. The effect of nanoparticle dispersion and surface properties on the nanocomposite foam morphology and properties are discussed in details. The nanocomposite foams exhibit superior properties compared to the neat polymer foams and have tremendous potential in a variety of industries. The second example concerns synthesis of highly porous silica nanoparticles and its polymer nanocomposites. A unique toughening effect is observed for this nanocomposite system. The last example discusses combing “top down” polymer nanomanufacturing and “bottom up” assembly to fabricate polymer nanochannels for biomedical applications. The polymer channel array can be fabricated by sacrificial template imprinting (STI) technology to achieve near mono dispersed channel size. A novel concept, dynamic assembly, is introduced for the “bottom up” assembly of nanostructures. Electrokinetic force is utilized to guide silica formation within the submicron polymer channel arrays. Formation of silica nanostructure leads to the reduction of channel size, at the same time, provide substantial reinforcement to the polymer structure. Nanochannels of size ~50 nm were successfully synthesized. Such devices have great potential in applications such as drug and gene delivery.

    化学工程国家重点实验室（浙江大学）
2007年7月16日