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Citation: YU Xue-Ya, ZENG Zhao-Hua, YANG Jian-Wen, CHEN Yong-Lie. Synthesis and Photoinitiation Property of Quaternary Ammonium Tetraphenylborate[J]. Chinese Journal of Applied Chemistry, ;2004, 21(5): 450-454. shu

Synthesis and Photoinitiation Property of Quaternary Ammonium Tetraphenylborate

1.
School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275

Corresponding author: ZENG Zhao-Hua,
Received Date: 6 July 2003
Available Online: 22 November 2003
Fund Project: 广东省自然科学基金(011104)资助项目 (011104)

Two kinds of quaternary ammonium tetraphenylborates(QA salt-BPh₄) have been synthesized and characterized by elemental analysis, nuclear magnetic resonance spectroscopy and UV spectroscopy. The polymerization of tri-methylolpropane triacrylate(TMPTA) initiated by them under UV light illumination appeared to be radical polymerization and could be inhibited by oxygen. It was found from the results of photo-DSC of TMPTA at different temperature that the photoinitiation efficiency increased with polymerization temperature and the activation energy was calculated to be 44.4 kJ/mol. Thermogravimetry proved that the product had very good thermostability.
- quaternary ammonium tetraphenylborate,
- free radical polymerization,
- photoinitiation efficiency
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