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Citation: QI Yu-Song, ZENG Zhao-Hua, YANG Jian-Wen, CHEN Yong-Lie. Study on Silicone Modified UV-Moisture Dual Curable Polyurethane-Acrylate[J]. Chinese Journal of Applied Chemistry, ;2004, 21(9): 918-922. shu

Study on Silicone Modified UV-Moisture Dual Curable Polyurethane-Acrylate

1.
Institute of Polymer Science, Zhongshan University, Guangzhou 510275

Corresponding author: CHEN Yong-Lie,
Received Date: 1 December 2003
Available Online: 7 March 2004
Fund Project: 广东省重大科技专项(粤财企[2001]367号)资助项目 (粤财企[2001]367号)

A silicone modified polyurethane-acrylate(Si-PUA) prepolymer was prepared from 2-hydroxyethyl methacrylate, isophorone diisocyanate, and bis[3-(triethoxysilyl)propyl]amine. The Si-PUA prepolymer exhibits the behavior of Bingham fluids. The polydispersity of the prepolymer was 1.12 by GPC. The curing behavior of the Si-PUA prepolymer was investigated by FTIR and photo-DSC(DPC), tne it was found that the conversion of acrylate double bonds was 56.3% under ultraviolet irradation. The properties of the UV-cured and moisture-cured films were studied by TG and other measurements, and it was found that the UV-cured films were superior to the moisture-cured ones in electrical, physical properties and thermal stability.
- polyurethane acrylate,
- silicone,
- photocurable,
- moisture curable
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