Journal
POLYMER
Volume 54, Issue 10, Pages 2493-2497Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2013.03.033
Keywords
Polysilsesquioxane; Sol-gel; Bowl-shaped
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Funding
- Shandong Province Natural Science Foundation [ZR2009BM038]
- Independent Innovation Foundation of Shandong University (IIFSDU) [2011JC012]
- National Basic Research Program of China [2009CB930103]
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Bowl-shaped particles in sub-micrometer scale represent an interesting platform for many potential applications. However, controlled fabrication of this special structure based on polymers still remains a big challenge. In the present study, a controllable sol-gel polymerization procedure was developed to precisely prepare bowl-shaped polysilsesquioxane particles. The morphology of particles can be fine-tuned by judiciously adjusting the amount of two organoalkoxysilane precursors. We explored the formation mechanism of bowl-shaped polysilsesquioxane particles with a kippah structure. The flexibility of the shell and osmotic pressure in combination with centrifugal force should be the key factors to the formation of a bowl-shaped structure. (C) 2013 Elsevier Ltd. All rights reserved.
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