Preparation of Hybrid Latex Particles and Core–Shell Particles Through the Use of Controlled Radical Polymerization Techniques in Aqueous Media

2010 ◽  
pp. 125-183 ◽  
Author(s):  
Bernadette Charleux ◽  
Franck D’Agosto ◽  
Guillaume Delaittre
Keyword(s):  
Radical Polymerization ◽  
Aqueous Media ◽  
Controlled Radical Polymerization ◽  
Core Shell ◽  
Latex Particles ◽  
Shell Particles ◽  
Hybrid Latex

Highly tough, anti-fatigue and rapidly self-recoverable hydrogels reinforced with core–shell inorganic–organic hybrid latex particles

Soft Matter ◽  
2017 ◽  
Vol 13 (36) ◽  
pp. 6059-6067 ◽  
Author(s):  
Shan Xia ◽  
Shixin Song ◽  
Xiuyan Ren ◽  
Guanghui Gao
Keyword(s):  
Core Shell ◽  
Latex Particles ◽  
Organic Hybrid ◽  
Hybrid Latex

Highly tough, anti-fatigue and rapidly self-recoverable hydrogels reinforced with core–shell inorganic–organic hybrid latex particles.

Preparation and Characterization of Magnetic Functional Hybrid Particles

2011 ◽  
Vol 101-102 ◽  
pp. 918-921
Author(s):  
Hui Ying Wen ◽  
Hai Feng Fang ◽  
Shen Ling Xiao
Keyword(s):  
Magnetite Nanoparticles ◽  
Magnetic Particles ◽  
Miniemulsion Polymerization ◽  
Polystyrene Latex ◽  
Composite Particles ◽  
Core Shell ◽  
Hybrid Particles ◽  
Latex Particles ◽  
Shell Particles ◽  
Shell Composite

Hybrid microspheres with a polystyrene core coated with magnetite nanoparticles were prepared by two techniques. Firstly, monodispersed functional polystyrene latex particles were prepared by emulsion polymerization. In a general way chemical groups may be introduced through polymerizable surfactant or functional monomer. Magnetite acidic or alkaline sol was added in, then magnetite nanoparticles were absorbed onto latex particles by electrostatic attraction and core-shell composite particles were formed. Secondly, core-shell composite particles were prepared by miniemulsion polymerization. To modify the tendency of conglomeration of magnetite and increase the amount of magnetic particles onto the composite particles, silane coupling agent MPS was used as surface modification agent for magnetite. A series of different size and coating morphology magnetic hybrid particles were prepared through the adjustment of some experiment parameters. The obtained functional core-shell particles were characterized by FTIR, TEM, etc.

Atomic-force microscopy of a fractured rubber-toughened epoxy

1994 ◽  
Vol 52 ◽  
pp. 888-889
Author(s):  
O. Shaffer ◽  
J. Qian ◽  
V. Dimonie ◽  
R. Pearson ◽  
M. El-Aasser
Keyword(s):  
Atomic Force Microscopy ◽  
Crosslinking Agent ◽  
Core Shell ◽  
Physical Interaction ◽  
Latex Particles ◽  
Force Microscopy ◽  
Atomic Force ◽  
Transmission Electron ◽  
Rubber Toughened ◽  
Shell Particles

Atomic force microscopy (AFM) is a powerful scanning probe technique, which is capable of imaging polymer surfaces. This technique is complementary to the scanning electron microscope (SEM) but because of the AFM's sensitivity in the z direction surfaces that are too smooth to image by SEM can easily be imaged by AFM. This study utilizes transmission electron microscopy(TEM) to image the morphology of the latex rubber particles; SEM and AFM are used to study the degree of dispensability of the latex particles in the epoxy, and the fatigue-fracture surface of the rubber modified epoxy.Core-shell latex particles were prepared with a core of poly(butadiene-styreiie) |P(B-S)| and a shell Poly(methyl methacrylate)(PMMA). In order to study the interaction between the core/shell particles and the epoxy matrix, the shell is systematically varied in terms of chemical bonding, physical interaction and the extent of these interactions by incorporating acrylonitrile(AN). glycidyl-methacrylate(GMA). and crosslinking agent divinylbenzene(DVB) of varying concentrations in the shell.

scholarly journals Formation of Core–Shell Particles by Interfacial Radical Polymerization Initiated by a Glucose Oxidase-Mediated Redox System

2013 ◽  
Vol 25 (5) ◽  
pp. 761-767 ◽  
Author(s):  
Raveesh Shenoy ◽  
Mark W. Tibbitt ◽  
Kristi S. Anseth ◽  
Christopher N. Bowman
Keyword(s):  
Glucose Oxidase ◽  
Radical Polymerization ◽  
Redox System ◽  
Core Shell ◽  
Shell Particles

Synthesis of Core-Shell Particles Consisted of Polysiloxane and Poly(butyl methacrylate-stryrene-acrylonitrile) by Microemulsion Polymerization

2013 ◽  
Vol 319 ◽  
pp. 203-208
Author(s):  
Shao Jin Jia ◽  
Zhen Gang Ding ◽  
Ping Kai Jiang
Keyword(s):  
Internal Resistance ◽  
Butyl Methacrylate ◽  
Core Shell ◽  
Vinyl Monomers ◽  
Microemulsion Polymerization ◽  
Latex Particles ◽  
The Core ◽  
Shell Particles

Latexes with poly(butyl methacrylate-stryrene-acrylonitrile) rich in the shell and PDMS rich in the core were prepared based on microemulsion polymerization. Vinyl monomers were introduced to generate slightly crosslinked particles, then, etamethyltetraeyelosiloxane（D4）was added slowly to form the core. In the process, internal resistance must be overcome when the D4 entered into the polymer to form the core. The compatibility between the two polymer phases was changed by introducing acrylonitrile and the effect of different methods on forming latex particles was discussed.

scholarly journals Hydrophobization of silver nanoparticles through surface-initiated atom transfer radical polymerization

RSC Advances ◽  
2016 ◽  
Vol 6 (50) ◽  
pp. 44254-44260 ◽  
Author(s):  
Jose Enrico Q. Quinsaat ◽  
Frank A. Nüesch ◽  
Heinrich Hofmann ◽  
Dorina M. Opris
Keyword(s):  
Silver Nanoparticles ◽  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Core Shell ◽  
Atom Transfer ◽  
Polar Solvents ◽  
Poly Methyl Methacrylate ◽  
Shell Particles

Poly(methyl methacrylate) (PMMA)-coated Ag@SiO2core–shell particles with enhanced dispersibility in non-polar solvents were synthesized by surface-initiated atom transfer radical polymerization.

scholarly journals Silica/polymer core–shell particles prepared via soap-free emulsion polymerization

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 254-261
Author(s):  
Mina Ishihara ◽  
Tomofumi Kaeda ◽  
Takashi Sasaki
Keyword(s):  
Emulsion Polymerization ◽  
Radical Polymerization ◽  
Shell Structure ◽  
Cross Linking ◽  
Core Shell ◽  
Shell Formation ◽  
The Core ◽  
Core Shell Structure ◽  
Soap Free Emulsion Polymerization ◽  
Shell Particles

AbstractIn this study, core–shell particles were prepared as a hybrid material, in which a thin polymer shell was formed on the surface of the SiO2 sphere particles. The core–shell structure was successfully achieved without adding a surfactant via simple free-radical polymerization (soap-free emulsion polymerization) for various monomers of styrene, methyl methacrylate (MMA), and their derivatives. MMA formed thin homogeneous shells of polymer (PMMA) less than 100 nm in thickness with complete surface coverage and a very smooth shell surface. The obtained shell morphology strongly depended on the monomers, which suggests different shell formation mechanisms with respect to the monomers. It was found that the cross-linking monomer 1,4-divinylbenzene tends to promote shell formation, and the cross-linking reaction may stabilize the core–shell structure throughout radical polymerization. It should also be noted that the present method produced a considerable amount of pure polymer besides the core–shell particles. The glass transition temperatures of the obtained polymer shells were higher than those of the corresponding bulk materials. This result suggests strong interactions at the core–shell interface.

scholarly journals Rapidly self-deoxygenating controlled radical polymerization in water via in situ disproportionation of Cu(i)

2020 ◽  
Vol 11 (20) ◽  
pp. 5257-5266 ◽  
Author(s):  
Evelina Liarou ◽  
Yisong Han ◽  
Ana M. Sanchez ◽  
Marc Walker ◽  
David M. Haddleton
Keyword(s):  
Radical Polymerization ◽  
Aqueous Media ◽  
Controlled Radical Polymerization

The rapidly self-deoxygenating Cu-RDRP in aqueous media is investigated.

Sign in / Sign up

Export Citation Format

Share Document