Influence of chemical structure of benzophenones and cyclic acetals on the kinetics of diacrylates

POLY 104

Suqing Shi, shisuqing2021@163.com1, Hong Gao, liefuwang@126.com2, Pu Xiao1, and Jun Nie, niejun@mail.buct.edu.cn2. (1) Chemistry Department, Whuhan University, Wuhan, 430072, China, (2) College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
In this study, cyclic acetal was used as coinitiator for BP derivatives. The influence of chemical structure of photoinitiating system on the kinetis of diacrylate was investigated. The real-time near FTIR technique was used to monitor the extent of polymerization. The results showed that, five-numbered cyclic acetals showed to be effective synergist for aromatic ketones. Chemical structure of both BP derivatives and cyclic acetals had great influence on the kinetic of polymerization of HDDA, which was attributed to the stereoelectronic effects of the formed radicals. CBP/MDO combinations had the highest initiating reactivity.
 

General Papers: Polymers and Biology
6:00 PM-8:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster

Division of Polymer Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006