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贾叙东,教授
 

Email: jiaxd@nju.edu.cn

Tel: 0086-25-89683041/89686981

Fax: 0086-25-83621337

 

贾叙东 教授

Prof. Xudong Jia

2007-present                Professor, Nanjing University

1996-2006          Lecturer (96-98) and Associate professor (99), Nanjing University

2001                         Visiting Scholar in University of Georgia

1999-2000                    Visiting Scholar in University of Tuebingen

1992-1996                    PhD in Polymer Chemistry and Physics, Nanjing University

1989-1992                    MSc. in Polymer Chemistry and Physics, Nanjing University

1985-1989                    B.Sc. in Chemistry, Nanjing University

贾叙东 教授、博士生导师。19891992年分别获南京大学化学化工学院化学专业学士和高分子化学与物理硕士学位,1996年获南京大学化学化工学院高分子化学与物理博士学位。1999-2000年在德国Tuebingen大学访问进修,2001年在美国Georgia大学访问进修。2007年起任南京大学化学化工学院教授,研究方向为多相高分子、有机-无机杂化材料及光电功能聚合物。2005 年被评为江苏省优秀科技工作者,第九届挑战杯飞利浦全国大学生课外学术科技作品竞赛(一等奖)优秀指导教师,2013年被评为江苏省333工程中青年科技带头人。现担任江苏省复合材料学会副理事长,江苏省化学化工学会副秘书长。

Research Interests

Organic-inorganic Hybrid Materials

1)       POSS

Polyhedral oligosilsesquioxane (POSS) plays an important role as building block for inorganic-organic hybrid materials containing the cage structure of POSS monomers. Interestingly, functional substitutions at POSS framework not only bring the diversity but also make POSS easily compatible and well dispersed in organic polymers. Through this approach, many inorganic-organic hybrid materials enhanced their macroscopic properties compared with their nonhybrid counterparts, such as increased thermooxidative, and ultraviolet stability, enhanced abrasion resistance and hardness, reduced flammability, and viscosity during processing. 

2)       Graphene

Graphene, which consists of a two-dimensional (2D) sheet of covalently bonded carbon atoms, possesses a layered structure with a remarkably high specific surface area (calculated value, 2630 m2g_1) and Young's modulus (~1100 GPa). In recent years, there has been an enormous interest in fabricating graphene-based nanocomposites, resulting in greatly enhanced mechanical, crystal and electrical properties of the host polymers.

3)       Carbon dots

Fluorescent carbon nanoparticles (CNPs) or carbon dots (CDs) are commonly thought to consist of carbogenic cores passivated by other compounds or themselves. To date, emerging CNPs with fluorescence have been a potential alternative to traditional semiconducting quantum dots (SQDs) in bio-imaging and biological labeling for their low toxicity, excellent photoluminescence, environmental friendliness and good chemical stability.

Photoelectric Functional Polymer

1)       PLED

Semiconductor light-emitting polymers have attracted extensive attention on account of their great application prospect in the fields of organic photovoltage(OPV), polymer light-emitting diode (PLED), biological imaging, photodynamic therapy, etc. PLED, the most promising name in the field of display technology has received tremendous attention from various research groups. Being an interdisciplinary area of research, there has been challenging experiments on material science, device physics and chemistry of this organic display.

2) Semiconducting Polymer Dots (Pdots)

Semiconducting polymer dots (Pdots) represent a new class of fluorescent probes because of their exceptional brightness and their nontoxic features. There are still several challenges associated with Pdots as in vivo probes. Firstly, the fluorescence brightness of Pdots in the red and near infrared (NIR) is generally limited by their low quantum yields. Secondly, it is unclear whether Pdot-based probes can be specifically delivered to diseased tissues in vivo.

Multiphase Polymer

The semiconductor industry will qualify and ship 22 nm technology node, very large scale integrated (VLSI) circuits in 2012, as announced by Intel. It has brought increasingly significant challenges to conventional optical lithography. Integrated circuit (IC) layouts consist of patterned lines and holes: the lines define the active device regions, gate electrodes, and the wiring between the devices, and the holes define the electrical contact between the wires and the transistors. Patterning randomly distributed contact holes with tight pitches remains a challenge. Extreme ultraviolet lithography (EUV) can reach a resolution of 28 nm, but if the resolution is scaled further, excessive line-width roughness (LWR), high cost, and high light-source power will become significant issues. The rising cost and limited resolution of current lithography technologies have opened up opportunities for alternative patterning approaches. Among the emerging patterning approaches, block copolymer directed self-assembly (DSA) stands out as a simple but promising candidate for next-generation device fabrication with low-cost, sub-20 nm features.

Selected Publications

1.     Greatly enhanced mechanical properties and heat distortion resistance of poly(L-lactic acid) upon compositing with functionalized reduced grapheneoxide, Pengpeng Chen, Yuan Wang, Teng Wei, Zhen Meng, Xudong Jia* and Kai Xi*, Journal of Materials Chemistry A, 2013, 1: 9028-9032.

2.     A novel Au-Pt@PPy(polypyrrole) coral-like structure: Facile synthesis, high SERS effect, and good electro catalytic activity, Weina Wang, Yingchun Gao, Xudong Jia*, Kai Xi*, Journal of Colloid and Interface Science, 2013, 396: 23-28.

3.     Synthesis of fluorescent carbon nanoparticles from polyacrylamide for fast cellular endocytosis, Jiangjiang Gu, Weina Wang, Qiuhong Zhang, Zhen Meng, Xudong Jia* and Kai Xi*, RSC Advances, 2013, 3: 15589-15591.

4.     Preparation of novel benzoxazine monomers containing ferrocene moiety and properties of polybenzoxazines, Weizhi Li, Teng Wei, Yinchun Gao, Kai Xi, Xudong Jia*, Polymer, 2012, 53: 1236-1244.

5.     Synthesis of N-Phenylaminomethyl POSS and Its Utilization in Polyurethane, Qiuhong Zhang, Hui He, Kai Xi, Xin Huang, Xuehai Yu, Xudong Jia*, Macromolecules, 2011, 44: 550-557.

6.     Development of Chitosan-Coated Gold nanoflowers as SERS-Active Probes, Dan Xu, Wang Weina, Gu Jiangjiang, Kai Xi, Xuehai Yu, and Xudong Jia*, Nanotechnology, 2010, 21: 375101.

7.     Preparation of Highly Monodisperse Hybrid Silica Nanospheres Using a One-Step Emulsion Reaction in Aqueous Solution Zhen Meng, Chunyan Xue, Qiuhong Zhang, Xuehai Yu, Kai Xi and Xudong Jia*, Langmuir, 2009, 25: 7879–7883.

 



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