Covalently Attached Hollow Capsules Resistant to Etching of Polar Solution
S.L. Guo
College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, P.R. China ; These authors contributed equally to this work and should be considered co-first authors
N. Guo
Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Northeast Forestry University, Harbin, 150040, P.R. China ; These authors contributed equally to this work and should be considered co-first authors
J. Zheng
Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Northeast Forestry University, Harbin, 150040, P.R. China
Y. Wang
Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Northeast Forestry University, Harbin, 150040, P.R. China
X.F. Yan
Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Northeast Forestry University, Harbin, 150040, P.R. China
Z.Y. Wang
College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, P.R. China
Corresponding Author(s) : Z.Y. Wang
wangzhen_yue@163.com
Asian Journal of Chemistry,
Vol. 24 No. 6 (2012): Vol 24 Issue 6
Hollow capsules with nano-scaled walls were prepared by electrostatic layer-by-layer deposition of diazo-resin in alternation with nafion onto microparticles templates, followed by dissolution of the cores with acid solution or organic solvent. The stepwise growth of multilayers was followed by UV/VIS spectra. The formation of hollow capsules was verified by confocal laser scanning microscopy and atomic force microscopy. After application of UV irradiation, the linkage of hollow capsules was converted form an ionic bond to a covalent bond and the conversion was verified by FTIR and UV/VIS spectra. As a result, the stability of hollow capsules to polar solution increased dramatically.
Keywords
Hollow capsulesDiazoresinSelf-assembly
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Guo, S., Guo, N., Zheng, J., Wang, Y., Yan, X., & Wang, Z. (2012). Covalently Attached Hollow Capsules Resistant to Etching of Polar Solution. Asian Journal of Chemistry, 24(6), 2605–2608. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/9183
