Synthesis of Novel Polymer–Silica Colloidal Nanocomposites via Free-Radical Polymerization of Vinyl Monomers

Barthet, Christelle; Hickey, Andrew J.; Cairns, Dean; Armes, Steven P.

doi:10.1002/(sici)1521-4095(199903)11:5<408::aid-adma408>3.3.co;2-p

Cited by 92 publications

(153 citation statements)

References 0 publications

Supporting

Mentioning

142

Contrasting

Unclassified

Order By: Relevance

“…Several processes have been developed to prepare polymer-inorganic hybrid nanoparticles. [6,7,[19][20][21][22] Generally, the background for the intriguing behavior of the amphiphilic or surface-active nanoparticles originates from three fundamental relationships: (1) surface-energy change in emulsions due to the particle segregation at the interface versus particle radius (r), expressed as DE ∼ r 2 (modified YoungDupré equation [23] ); (2) particle-particle interaction energy versus r, expressed as E p-p ∼ r (Derjaguin approximation); and (3) diffusivity (D) of particles versus r, expressed as D ∼ r -1 (Stokes-Einstein equation). An interplay among these fundamental properties of colloids results in a range of particle sizes when DE and E p-p are comparable with the energy of thermal motion of the particles.…”

Section: Introductionmentioning

confidence: 99%

Stimuli‐Responsive Colloidal Systems from Mixed Brush‐Coated Nanoparticles

Motornov

Sheparovych

Lupitskyy

et al. 2007

Adv Funct Materials

160

164

View full text Add to dashboard Cite

We report on the application of mixed polymer brushes to the reversible in situ switching colloidal systems (suspensions of responsive 200 nm in diameter particles in individual solvents and immiscible liquids). We used mixed copolymer brushes to fabricate responsive nanoparticles and employed the particles to prepare responsive colloidal systems, which demonstrated drastic transformation/switching of material properties upon external stimuli. The interaction between the particles themselves and the particles and their environment can be precisely tuned by a change of solvent and pH. We show that this behavior can be used for a reversible formation of particle aggregates, stabilization and switching between w/o and o/w emulsions, and regulation of the particle transport between immiscible liquids across the interface. We demonstrate an example of the application of the responsive colloids for the fabrication of ultrahydrophobic coatings with textured surfaces from aqueous dispersion, and no surfactant application, using the switching properties of the responsive particles.

show abstract

Section: Introductionmentioning

confidence: 99%

Stimuli‐Responsive Colloidal Systems from Mixed Brush‐Coated Nanoparticles

Motornov

Sheparovych

Lupitskyy

et al. 2007

Adv Funct Materials

160

164

View full text Add to dashboard Cite

show abstract

“…Inorganic nanoparticles modified with polymer have received widespread attentions due to its excellent optical, electrical, thermal, mechanical and catalytic properties [1][2][3][4]. In addition, Polymers also improve the surface properties of inorganic nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Preparation of titanium dioxide nanoparticles modified with methacrylate and their electrophoretic properties

Zhang

Jiang

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Titanium dioxide nanoparticles (NPs) were modified by alkyl methacrylate (alkyl = methyl, butyl, ethylhexyl, lauryl and octadecyl) through graft copolymerization at its surface, respectively. The characteristics of these products were analysed by Fourier transform infrared, thermogravimetric analysis and transmission electron microscopy. The average particle size, zeta potential and electrophoretic mobility of modified NPs were tested in Isopar dispersion system and the water contact angle was also measured. The average particle size of NPs decreased; zeta potential, hydrophobicity and the dispersion stability enhanced with the increase of alkyl chain length. The maximum values of the zeta potential of NPs modified by poly(octadecyl methacrylate) (PSMA/TiO 2 ) electrophoretic particles reached -72.64 mV. The obtained NPs associated with carbon black were employed to prepare the display inks. An electrophoretic display prototype device based on the white-black inks was prepared. The results gave that the device based on NPs treated with poly(lauryl methacrylate) (PLMA/TiO 2 ) presented 357 ms of quick response under an applied 5 V (DC) field.

show abstract

“…Because not only organic polymers offer good processability and relatively low cost compared inorganic materials, but also inorganic materials often bring high modulus and/or good thermal stability. Thanks to the high surface areas of the nanoparticles and their interactions with the polymer chains, the hybrid nanocomposites can exhibit unusual, possibly unique properties, which cannot be obtained simply by commixing the polymeric component with the inorganic phase [7].…”

Section: Introductionmentioning

confidence: 99%

Grafting of amphiphilic polymers containing quaternary ammonium group on SiO2 surface via surface-initiated ATRP

et al. 2012

View full text Add to dashboard Cite

This article reports the fabrication of hybrid silica nanoparticles using surface-initiated atom transfer radical polymerization (SI-ATRP) technique. The surface of silica nanoparticles were densely grafted with 2-(dimethylamino) ethyl methacrylate (DMAEMA) and then quaternized with 1-bromohexane via two methods. FTIR, 1 H NMR, XPS, SEM, TGA, and GPC were used to determine the chemical structure, morphology, and other properties of the products. SEM images of nanocomposites showed spherical shaped morphology with an average diameter of ∼50 nm and they were direct evidences that the hybrid silica nanoparticles had uniform core-shell morphology. Evolution of GPC traces of grafted polyDMAEMA showed that the SI-ATRP could be conducted in a well-controlled manner.

show abstract

Synthesis of Novel Polymer–Silica Colloidal Nanocomposites via Free-Radical Polymerization of Vinyl Monomers

Cited by 92 publications

References 0 publications

Stimuli‐Responsive Colloidal Systems from Mixed Brush‐Coated Nanoparticles

Stimuli‐Responsive Colloidal Systems from Mixed Brush‐Coated Nanoparticles

Preparation of titanium dioxide nanoparticles modified with methacrylate and their electrophoretic properties

Grafting of amphiphilic polymers containing quaternary ammonium group on SiO2 surface via surface-initiated ATRP

Contact Info

Product

Resources

About