A novel method to prepare water-soluble core microcapsules with controlled burst release
文献信息
Mingming Zuo, Tianqing Liu, Jingjing Han
The controlled burst release of water-soluble materials from microcapsules is very important in many practical applications. A novel method is described to synthesize microcapsules containing water-soluble materials, ammonium persulfate or sodium nitrite, as the core and a hydrophobic copolymer (P(St–MMA)) as the shell through an evaporation–dispersion–polymerization process. The microcapsules had an average size of 8–16 μm. The release behavior was examined at different temperatures, pH values and salinities. The release pattern of the cores from the microcapsules was burst release. After a given time period in the 10–45 h region, all of the cores could be completely released within 1 h from the microcapsules. The structures, dispersion and morphologies of the microcapsules were characterized before and after they were stored for 5 months at room temperature. This method further enhances the potential of microcapsules with burst release properties for practical applications.
期刊推荐

Russian Journal of Bioorganic Chemistry

Russian Journal of Organic Chemistry

Russian Chemical Bulletin

Russian Journal of General Chemistry

Crystallography Reports

Organic Process Research & Development

Journal of Peptide Science

Nature Medicine

Russian Journal of Applied Chemistry

Saudi Pharmaceutical Journal
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来源期刊
Polymer Chemistry

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