Capillary force induced formation of monodisperse polystyrene/silica organic-inorganic hybrid hollow spheres
This paper presents a "one-spot" procedure to fabricate polystyrene/silica (PS/SiO(2)) hybrid hollow spheres. In this approach, when poly(vinylpyrrolidone)-stabilized PS colloids were deposited by sol-gel derived silica layer under acidic medium, it was interesting to find that the PS/SiO(...
| Publié dans: | Langmuir : the ACS journal of surfaces and colloids. - 1985. - 26(2010), 17 vom: 07. Sept., Seite 14271-5 |
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| Auteur principal: | |
| Autres auteurs: | , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2010
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| Accès à la collection: | Langmuir : the ACS journal of surfaces and colloids |
| Sujets: | Journal Article Research Support, Non-U.S. Gov't Colloids Polystyrenes Silicon Dioxide 7631-86-9 |
| Résumé: | This paper presents a "one-spot" procedure to fabricate polystyrene/silica (PS/SiO(2)) hybrid hollow spheres. In this approach, when poly(vinylpyrrolidone)-stabilized PS colloids were deposited by sol-gel derived silica layer under acidic medium, it was interesting to find that the PS/SiO(2) core-shell colloids gradually changed to hollow structure spontaneously in the same medium as reaction went on. The formation of this hollow structure should be attributed to the diffusion of PS macromolecular chains from core particles into the voids between silica nanoparticles driven by the strong capillary force |
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| Description: | Date Completed 27.12.2010 Date Revised 02.09.2010 published: Print Citation Status MEDLINE |
| ISSN: | 1520-5827 |
| DOI: | 10.1021/la102256t |