Abstract：To study the reaction of amine with dairylide yellow pigment (PY14) used in electrophoretic display, especially the reaction mechanism between polyisobutylene imide (PIBI) and PY14, some amines were selected to react with PY14. At the same time, tetraethylene pentamine was treated with HCl. The zeta potential and IR of the above products were tested. Based on the zeta potential and IR frequency, the charge control intensities of different amines on PY14 were compared, and it is confirmed that the reaction of PY14 with amines is Lewis reaction, the charge control of secondary and primary amines with less steric obstacle is stronger. The PY14 zeta potential value reverse is due to the adsorption of bigger reverse ion.
Key words：Electrophoretic display;Charge control agent;Lewis reaction;Zeta potential
[1] LI Lu-hai, ZHANG Shu-fen，YANG Jin-zong，et al(李路海，张淑芬, 杨锦宗, 等). Electron Devices (电子器件)，2003，(2): 148. [2] Comiskey Barrett, Albert J D, Yoshizawa Hidekazu. Nature, 1998，394：253. [3] CHEN Zong-qi, DAI Min-guang(陈宗淇，戴敏光). Colloid Chemistry(胶体化学). Beijing: High Education Press(北京：高等教育出版社)，1985. 234. [4] ZHOU Chun-long, MU Zhen-yi(周春隆，穆振义). Structure, Property and Application of Organic Pigments(有机颜料结构、特性及其应用). Beijing: Chemical Industry Press(北京：化学工业出版社)，2002. 224. [5] Schubert Frederic E. Suspension for Use in Electrophoretic Image Display Systems，USP5380362, January 10, 1995. [6] ZHOU Zu-kang, GU Ti-ren, MA Ji-ming(周祖康，顾惕人，马季铭). Basic Colloid Chemistry(胶体化学基础). Beijing: Peking University Press(北京：北京大学出版社)，1984. 248.
