Thermally stable, organosoluble of co-polynaphthalimides based on 1,4,5,8-naphthalene tetracarboxylicdianhydride, 9,9-bis(4-aminophenyl)fluorine, and various aromatic diamines

8^th International Conference and Exhibition on Materials Science and Engineering

May 29-31, 2017 Osaka, Japan

Yung-Chung Chen

National Kaohsiung University of Applied Sciences, Taiwan

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

A series of novel co-polynaphthalimides (IIIa-h) were synthesized from 1,4,5,8-naphthalene tetracarboxylicdianhydride with 9,9-bis(4-aminophenyl)fluorine and its equimolar mixtures with various aromatic diamines by high-temperature solution ploycondensation. Series III had inherent viscosity ranging from 0.77-1.17 dL/g, respectively. Most of the films were soluble in m-cresol and some of them were dissolve in 1-methyl-2-pyrrolidone (NMP). These polymers could afford transparent and tough films with Strength at Break of 77-100 MPa via casting relative m-cresol solutions. These PNIs also exhibited high thermal stability, with glass-transition temperatures of 218�239 oC, 10% weight loss temperatures above 500 oC in nitrogen or air, and char yields at 800 oC in nitrogen higher than 40%.

Biography :

Yung-Chung Chen received a Chemical Engineering PhD degree in 2009 from National Chung Hsing University, Taiwan (under supervision of Prof. Ru-Jong Jeng). After three years of postdoctoral fellow at the Institute of Chemistry, Academia Sinica (under supervision of Prof. Jiann T. Lin), he joined DuPont as an R&D Chemist. Currently, he was appointed as an assistant professor at National Kaohsiung University of Applied Sciences. His current research interest is focused on synthesis and characterization of organic and polymeric materials including optical materials, organic solar cells, photoresist and polyimide.

Email: chenyc@kuas.edu.tw