Synthesis of Silanol-Functionalized Latex Nanoparticles through Miniemulsion Copolymerization of Styrene and γ-Methacryloxypropyltrimethoxysilane

The polystyrene latex nanoparticles bearing silanol groups on their surfaces were successfully synthesized via miniemulsion polymerization using γ-methacryloxypropyltrimethoxysilane (MPS) as the functional comonomer and oil-soluble AIBN as the initiator at neutral conditions. FTIR and 29Si NMR spect...

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Bibliographic Details
Published in:Langmuir 2006-05, Vol.22 (10), p.4674-4679
Main Authors: Zhang, Sheng-Wen, Zhou, Shu-Xue, Weng, Yu-Ming, Wu, Li-Min
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Emulsions
Exact sciences and technology
General and physical chemistry
Latex - chemistry
Magnetic Resonance Spectroscopy
Methacrylates - chemistry
Microscopy, Electron, Transmission
Miniaturization
Molecular Structure
Nanoparticles - chemistry
Nanoparticles - ultrastructure
Particle Size
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Polymers - chemical synthesis
Polymers - chemistry
Silanes - chemistry
Spectroscopy, Fourier Transform Infrared
Styrene - chemistry
Surface Properties
Surface-Active Agents - chemistry
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Summary:The polystyrene latex nanoparticles bearing silanol groups on their surfaces were successfully synthesized via miniemulsion polymerization using γ-methacryloxypropyltrimethoxysilane (MPS) as the functional comonomer and oil-soluble AIBN as the initiator at neutral conditions. FTIR and 29Si NMR spectra showed that the condensation of silanol groups was suppressed effectively. ζ potential and XPS analyses demonstrated that the silanol groups were enriched at the surfaces of the latex particles and could be tailored by MPS concentration. These silanol-functionalized latex particles could be easily coated with silica or other inorganic or organic compounds to prepare novel hybrid particles and hollow microspheres.
ISSN:0743-7463
1520-5827
DOI:10.1021/la053106m