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Citation: ZHANG Ling, ZENG Zhao-Hua, YANG Jian-Wen, ZHANG Xia-Hong, CHEN Yong-Lie. On the NMR Spectra of UV-Curable Polyurethane-acrylate Hybrid Material[J]. Chinese Journal of Applied Chemistry, ;2004, 21(3): 291-295. shu

On the NMR Spectra of UV-Curable Polyurethane-acrylate Hybrid Material

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

Corresponding author: CHEN Yong-Lie,
Received Date: 15 May 2003
Available Online: 15 August 2003
Fund Project: 广东省自然科学基金(021727) (021727)中山大学青年教师科研启动基金(01311201130019)资助课题 (01311201130019)

The reaction extent of organic phase, as well as the degree of hydrolysis and condensation reactions of inorganic phase of UV-curable polyurethane acrylate/silica hybrid(PUA-TMSPM)/SiO₂ material were examined by means of solid-state ¹³C and ²⁹SiCP/MAS NMR. The results showed that the conversion of acrylate double bond was almost complete on UV irradiation. Solid-state ²⁹SiCP/MAS NMR spectra revealed that there were no unreacted TEOS and TMSPM and the mean condensation degree of the silanes of the hybrid material was 0.80.
- polyurethane acrylate/silica hybrid material,
- UV curable,
- sol-gel process,
- solid-state ¹³CCP/MAS NMR
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