Polymer reactions on powder surfaces

Kroker, R.; Schneider, Manfred; Hamann, K.

doi:10.1016/0300-9440(72)85002-1

Cited by 56 publications

(13 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4 So, many approaches have been done to bestow on the inorganic component, affinity toward the base polymer. 5 Silica nano-particles are often treated with silane coupling agents for this purpose, although such treatment is still insufficient in many cases. 6 Encapsulation of inorganic particles with a polymer is another, more effective approach to improve its affinity to the base polymer.…”

Section: Introductionmentioning

confidence: 99%

“…6 Encapsulation of inorganic particles with a polymer is another, more effective approach to improve its affinity to the base polymer. 5,[7][8][9][10][11][12][13][14][15][16] Common approaches of encapsulating inorganic particles are: (1) treatment with the polymer synthesized in advance, and (2) polymerization on the particle surface. The former has the advantages of simplicity and high efficiency.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation of spherical nanocomposites consisting of silica core and polyacrylate shell by emulsion polymerization

Mizutani

Arai

Miyamoto

et al. 2005

J of Applied Polymer Sci

View full text Add to dashboard Cite

Nanocomposite particles consisting of silica (inorganic core) and polyacrylate (organic shell) were prepared in a form of emulsion by a new and simple methodthe emulsion polymerization of acrylic monomers in the presence of silica sol. The key technique of the present emulsion polymerization, which made the formation of the nanocomposites successful, is the usage of nonionic surfactant above its cloud point. The morphology of the composite was investigated by DLS, AFM, and TEM, which clearly showed formation of the core-shell-type particles. A transparent film was prepared by casting the emulsion, which showed high resistibility against organic solvents.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of spherical nanocomposites consisting of silica core and polyacrylate shell by emulsion polymerization

Mizutani

Arai

Miyamoto

et al. 2005

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Surface modifications of inorganic particles have been widely studied [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Surface graft polymerization is one of the most effective and versatile methods used in making many of these modifications.…”

Section: Introductionmentioning

confidence: 99%

Structural estimation of particle arrays at air–water interface based on silica particles with well‐defined and highly grafted poly(methyl methacrylate)

Moon

Kim

Paik

et al. 2009

Polymer Engineering & Sci

View full text Add to dashboard Cite

Silica nanoparticles with well-defined, highly grafted dense poly(methyl methacrylate) (MMA) were prepared by surface-initiated activators regenerated by electron transfer for atom transfer radical polymerization (ARGET ATRP) of methyl methacrylate with an initiatorfixed silica particle in the presence of air. Two different polymerizations of MMA were carried out under the same conditions using tris[2-(dimethylamino)ethyl]-amine (Me 6 TREN) and N,N,N 0 ,N 0 ,N 00 -pentamethyldiethylene-triamine (PMDETA) as the ligand, respectively. In the CuCl 2 /PMDETA system, polymerization appeared to be more controlled with a lower polydisperisty compared with the CuCl 2 /Me 6 TREN system. The monolayer of these particles was formed at the air-water interface using Langmuir-Blodgett (LB) technique. Multilayers of the particles were fabricated by repetition of LB depositing. A surface pressure-area (p-A) measurement and SEM observation were used to characterize the particle arrays.

show abstract

“…[1][2][3][4] In order to improve dispersibility in organic phase and compatibility in polymer matrices, polymer modification, including adsorption, coating, or grafting, of inorganic fine particles have been developed. [5][6][7][8] In many cases, the modifications have been carried out by the reaction of surface hydroxyl group on inorganic particles with polymers having isocyanate, alkoxysilane, and chlorosilane groups. [9][10][11] We have studied a convenient polymer modification of monodispersed colloidal silica particles using a polymeric coupling agent of trimethoxysilyl terminated maleic anhydride-styrene copolymer.…”

mentioning

confidence: 99%

Modification of Monodisperse Colloidal Silica by Radical Copolymerizatoin of Cationic Surface Active Vinyl Monomers

et al. 2009

View full text Add to dashboard Cite

Adsorption and polymer modification of colloidal silica by radical copolymerization of surface active monomers, i.e., polymerizable surfactant having a vinyl end group, were investigated. Radical copolymerization of amide ammonium monomer and ammonium-type cross-linker (monomer) using a initiator of 2,2 0 -azobis(2-amidinopropane) dihydrochloride on colloidal silica successfully led to the formation of monodispersed cross-linked polymer/SiO 2 composites, which is stable in organic solvents. Addition of carboxylic acid monomer to the reaction system of two ammonium monomers gave homogeneously polymer-coated silica composites having carboxyl groups. The composites show -potential of À36 mV and 0 mV in water and ethanol, respectively. KEY WORDS: Colloidal Silica / Radical Copolymerization / Surface Active Monomer / Adsorption / Inorganic-organic composite nanoparticles have attracted much interest, because they possess properties of both inorganic particles and organic molecules, thereby leading to extensive potential applications in various fields of materials science.

show abstract

Polymer reactions on powder surfaces

Cited by 56 publications

References 37 publications

Preparation of spherical nanocomposites consisting of silica core and polyacrylate shell by emulsion polymerization

Preparation of spherical nanocomposites consisting of silica core and polyacrylate shell by emulsion polymerization

Structural estimation of particle arrays at air–water interface based on silica particles with well‐defined and highly grafted poly(methyl methacrylate)

Modification of Monodisperse Colloidal Silica by Radical Copolymerizatoin of Cationic Surface Active Vinyl Monomers

Contact Info

Product

Resources

About