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Preparation of hollow silica nanospheres by surface-initiated atom transfer radical polymerization on polymer latex templates

Title data

Chen, Yiwang ; Kang, En-Tang ; Neoh, Koon-Gee ; Greiner, Andreas:
Preparation of hollow silica nanospheres by surface-initiated atom transfer radical polymerization on polymer latex templates.
In: Advanced Functional Materials. Vol. 15 (January 2005) Issue 1 . - pp. 113-117.
ISSN 1616-3028
DOI: https://doi.org/10.1002/adfm.200400179

Official URL: Volltext

Abstract in another language

Poly(vinylbenzyl chloride), (PVBC) latex particles of about 100 nm in size are prepared by emulsion polymerization. Silyl functional groups are introduced onto the PVBC-nanoparticle templates via surface-initiated atom transfer radical polymerization of 3-(trimethoxysilyl)propyl methacrylate. The silyl groups are then converted into a silica shell, approximately 20 nm thick, via a reaction with tetraethoxysilane in ethanolic ammonia. Hollow silica nanospheres are finally generated by thermal decomposition of the PVBC template cores. Field-emission scanning electron microscopy and field-emission transmission electron microscopy are used to characterize the intermediate products and the hollow nanospheres. Fourier-transform infrared spectroscopy results indicate that the polymer cores are completely decomposed.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: CORE-SHELL PARTICLES; SPHERES; NANOPARTICLES; ENCAPSULATION; FABRICATION; CAPSULES; TITANIA; MICROSPHERES; COATINGS; SOL
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 08 Apr 2015 13:23
Last Modified: 08 Apr 2015 13:23
URI: https://eref.uni-bayreuth.de/id/eprint/9707