Synthesis of silanol-functionalized latex nanoparticles through miniemulsion copolymerization of styrene and gamma-methacryloxypropyltrimethoxysilane.
The polystyrene latex nanoparticles bearing silanol groups on their surfaces were successfully synthesized via miniemulsion polymerization using gamma-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. zeta 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.
Zhang
Sheng-Wen
SW
Department of Materials Science and the Advanced Coatings Research Center of China Educational Ministry, Fudan University, Shanghai 200433, PR China.
Zhou
Shu-Xue
SX
Weng
Yu-Ming
YM
Wu
Li-Min
LM
D004655:Emulsions; D007840:Latex / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008689:Methacrylates / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D008904:Miniaturization; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D012821:Silanes / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D020058:Styrene / Q000737:chemistry*; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry
D004655:Emulsions; D007840:Latex; D008689:Methacrylates; D011108:Polymers; D012821:Silanes; D013501:Surface-Active Agents; C082343:silanol; C017492:methacryloxypropyltrimethoxysilane; D020058:Styrene