Hybrid nanocomposites containing silica and PEO segments: preparation through dual-curing process and characterization

作者: Giulio Malucelli , Aldo Priola , Marco Sangermano , Ezio Amerio , Elisa Zini

DOI: 10.1016/J.POLYMER.2005.02.045

关键词: Polymer chemistryMethacrylateMaterials sciencePrepolymerUV curingThermal stabilitySol-gelOligomerPhotopolymerHybrid material

摘要: Abstract Hybrid organic–inorganic nanocomposites containing PEO segments linked to an acrylate–methacrylate network were prepared through a dual-curing process, involving photopolymerization and condensation of alkoxysilane groups. A Polyethyleneglycol 600 α,ω diacrylate (PEGDA 600) similar oligomer Bisphenol unit methacrylate groups (BEMA 1400) used. Mixtures the oligomers together with methacryloyloxypropyltrimethoxysilane (MEMO) tetraethoxysilane (TEOS) prepared. The kinetics reactions was investigated. conditions suitable for obtaining complete conversion both reactive settled up. obtained films perfectly transparent amorphous. Tg values hybrids found increase by increasing TEOS content condensation. TEM analyses indicated formation silica phases at nanometric level; TGA curves revealed higher thermal stability hybrid structures.

参考文章(17)
K. Gigant, U. Posset, G. Schottner, L. Baia, W. Kiefer, J. Popp, Inorganic-Organic Cross-Linking in UV Curable Hard Coats Based Upon Vinyltriethoxysilane-Tetraethoxysilane-Polyfunctional Acrylate Hybrid Polymers: A Raman Spectroscopic Study Journal of Sol-Gel Science and Technology. ,vol. 26, pp. 369- 373 ,(2003) , 10.1023/A:1020708812385
Robert F. Landel, Lawrence E. Nielsen, Mechanical Properties of Polymers and Composites ,(1993)
Shoichiro Yano, Keisuke Iwata, Kimio Kurita, Physical properties and structure of organic-inorganic hybrid materials produced by sol-gel process Materials Science and Engineering: C. ,vol. 6, pp. 75- 90 ,(1998) , 10.1016/S0928-4931(98)00043-5
Jianye Wen, Garth L. Wilkes, Organic/Inorganic Hybrid Network Materials by the Sol−Gel Approach Chemistry of Materials. ,vol. 8, pp. 1667- 1681 ,(1996) , 10.1021/CM9601143
Zi-Kang Zhu, Yong Yang, Jie Yin, Zong-Neng Qi, Preparation and properties of Organosoluble polyimide/ silica hybrid materials by sol-gel process Journal of Applied Polymer Science. ,vol. 73, pp. 2977- 2984 ,(1999) , 10.1002/(SICI)1097-4628(19990929)73:14<2977::AID-APP22>3.0.CO;2-J
Yen Wei, Danliang Jin, Jigeng Xu, George Baran, Kun-Yuan Qiu, Mechanical properties of interface‐free polyacrylate‐silica hybrid sol–gel materials for potential dental applications Polymers for Advanced Technologies. ,vol. 12, pp. 361- 368 ,(2001) , 10.1002/PAT.118
D. Tian, Ph. Dubois, R. Jerome, A new poly (ε-caprolactone) containing hybrid ceramer prepared by the sol-gel process Polymer. ,vol. 37, pp. 3983- 3987 ,(1996) , 10.1016/0032-3861(96)00199-1
A Priola, G Gozzelino, F Ferrero, G Malucelli, Properties of polymeric films obtained from u.v. cured poly(ethylene glycol) diacrylates Polymer. ,vol. 34, pp. 3653- 3657 ,(1993) , 10.1016/0032-3861(93)90050-K