Polystyrene(1)/poly(butyl acrylate-methacrylic acid)(2) core-shell emulsion polymers. Part I. Synthesis and colloidal characterization

Ríos, Leonardo; Hidalgo, Manuel; Cavaillé, J.Y.; Guillot, J.; Guyot, Alain; Pichot, Christian

doi:10.1007/bf00657448

Cited by 48 publications

(29 citation statements)

References 11 publications

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“…Core/shell polymers typically consist of at least two main polymeric domains: one usually having a low-glass transition temperature (T g ) and another with a high-T g , which are chosen to be lower and higher, respectively, than the working temperature [1][2][3]. Core/shell polymer particles can be used in a wide range of applications because they exhibit tunable and/or improved chemical and mechanical properties compared to those of the parent-component polymers [4,5].…”

Section: Introductionmentioning

confidence: 99%

Composition effects on the mechanical properties of microemulsion-made core/shell polymers

Rabelero

López-Cuenca

Puca

et al. 2005

Polymer

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Section: Introductionmentioning

confidence: 99%

Composition effects on the mechanical properties of microemulsion-made core/shell polymers

Rabelero

López-Cuenca

Puca

et al. 2005

Polymer

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“…The first one (sample A) was a pure PBuA shell which gave imperfect core-shell morphologies (half-moon like) and the second type of shell (sample B) was made of a copolymer of butyl acrylate and 10% methacrylic acid (MA) which gave a better coverage of the PS core by the soft shell ( Figure 2). Those particles were prepared in two steps: PS emulsion polymerisation gave a PS seed of 120 nm diameter and the PBuA or PBuA-coMA shell was obtained in a second polymerisation step (7).…”

Section: Methodsmentioning

confidence: 99%

Small-Angle Neutron Scattering Studies of Composite Latex Film Structure

Chevalier

Hidalgo

Cavaillé

et al. 1996

ACS Symposium Series

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The structure of composite films made of high T g polystyrene (PS) nodules dispersed in a low T g polybutylacrylate (PBuA) matrix was studied by means of small angle neutron scattering. For films cast from mixtures of PS and PBuA latexes, segregation of PS particles leads to dense clusters of PS particles in a PBuA continuous medium. This segregation has the main features of a phase separation. For films cast from two-stage (core-shell) particles, this segregation phenomenon is prevented, depending on the coverage of the PS core by the PBuA shell. Upon annealing the films above the T g of PS, extensive coalescence of PS particles occurred when large contacts were already present in the dry film at room temperature, whereas coalescence could be prevented when PS particles were taken apart by the presence of a PBuA shell. The extent of coalescence had a strong influence on the films mechanical properties.In waterborne coatings applications, polymer films can be obtained by drying polymer particles colloidal suspensions. During the drying process, particles have to approach each other, stick, and finally get deformed from spherical to polyhedral as water evaporates (J-3). Particles made of polymers of low glass transition temperature (T g ) are thus required in such a film formation process but the final (dry) films mechanical properties are poor. A mechanical properties reinforcement can be obtained when solid particles are mixed with the low T % polymer ones. Those solid particles can be either inorganic or organic when a high T g polymer is used. In this latter case, a further structural transformation of the dry films can be obtained by heating the films above the glass transition temperature of the high T g polymer. The weak bonds between solid particles at their points of contact are then strengthened by polymer 4

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“…At present, the formation mechanism of core-shell polymer was reported in literatures [35][36][37][38] mainly including the following cases. The first case was polymer deposition mechanism.…”

Section: Formation Of the Fp/sio 2 Nanocompositesmentioning

confidence: 97%

“…Then the seed emulsion polymerization reaction took place. According to the reports [35][36][37][38], it can be deduced that the seed emulsion polymerization reaction may be carried out simultaneously in the aqueous solution and on the surface of the seed V-SiO 2 , conforming to the polymer deposition mechanism and seed surface polymerization mechanism. On the one hand, for the polymer deposition mechanism, the primary free radicals diffuse into the micelles containing acrylate monomers like BA, MMA, and HEA, producing the monomer-based free radicals, followed by the chain addition reaction, the growth of oligomer nuclei and the formation of oligomer-based free radicals.…”

Section: Formation Of the Fp/sio 2 Nanocompositesmentioning

confidence: 98%

Preparation of vinyl silica-based organic/inorganic nanocomposites and superhydrophobic polyester surfaces from it

Shen

Wang

et al. 2015

Colloid Polym Sci

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A fluoropolymer/silica (FP/SiO 2 ) organic-inorganic nanocomposite was synthesized by copolymerization of butyl acrylate (BA), methyl methacrylate (MMA), 2-hydroxyethyl acrylate (HEA), and dodecafluoroheptyl methacrylate (DFMA) based on vinyl nano-silica (V-SiO 2 ) using emulsion polymerization. The V-SiO 2 was prepared via water-based solgel reaction with vinyl trimethoxy silane (VTMS) as the precursor in the presence of the composite surfactant. The preparation of V-SiO 2 , influence of the composite surfactant on VSiO 2 , effect of composite emulsifier on the properties of FP/ SiO 2 , and the formation of the FP/SiO 2 nanocomposite were analyzed. The resulting V-SiO 2 and FP/SiO 2 were characterized by particle size analyzer, transmission electron microscopy (TEM), Fourier-transform infrared spectrometry (FTIR), and X-ray photoelectron spectroscopy (XPS). The obtained FP/ SiO 2 nanocomposites were applied to coat onto the flexible polyester fabrics by dip-pad-cure process. The results showed that the V-SiO 2 nanoparticles had been introduced into the FP/ SiO 2 nanocomposites and superhydrophobic polyester surfaces were achieved by the cooperation of the rough surface structure provided by the silica nanoparticles and the low surface energy caused by fluoropolymer.

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Polystyrene(1)/poly(butyl acrylate-methacrylic acid)(2) core-shell emulsion polymers. Part I. Synthesis and colloidal characterization

Cited by 48 publications

References 11 publications

Composition effects on the mechanical properties of microemulsion-made core/shell polymers

Composition effects on the mechanical properties of microemulsion-made core/shell polymers

Small-Angle Neutron Scattering Studies of Composite Latex Film Structure

Preparation of vinyl silica-based organic/inorganic nanocomposites and superhydrophobic polyester surfaces from it

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