Aqueous poly(vinyl acetate)-based core/shell emulsion: synthesis, morphology, properties and application

Bai, Long; Gu, Jiyou; Huan, Siqi; Li, Zhiguo

doi:10.1039/c4ra03695f

Cited by 22 publications

(15 citation statements)

References 148 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Great effort has been made through various approaches to improve the shortcomings of PS materials, including blending, 15 fabricating novel architecture, 16 and new processing technique, 17 etc. The inherent hydrophobicity of PS has been extensively explored and utilized to create superhydrophobic materials with tailed performances.…”

Section: Introductionmentioning

confidence: 99%

Electrospun nanofibrous composites of polystyrene and cellulose nanocrystals: manufacture and characterization

et al. 2015

Self Cite

View full text Add to dashboard Cite

An electrospinning process was successfully utilized to manufacture polystyrene/cellulose nanocrystal (PS/ CNC) nanofibrous mats. Morphology, crystallinity, thermal behavior, as well as mechanical and hydrophobic properties of electrospun PS/CNC nanofibrous mats were investigated. Morphological analysis of the obtained nanofibrous mats demonstrated that fine nanofibers with smooth and smaller diameter could be obtained with increased CNC contents. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) results showed that PS and CNCs were physically mixed and CNCs were probably distributed on the surface of the electrospun nanofibers. The structural property e.g.crystallinity of the electrospun nanofibers was examined using wide angle X-ray diffraction (WAXD). It was indicated that crystallinity could be increased as a result of the increased addition of CNCs and aligned nanofiber orientation. Thermal properties of electrospun PS/CNC nanocomposites were enhanced by increasing CNC loading levels. The tensile strength of electrospun PS/CNC nanofibrous mats was elevated 170% by incorporating 7 wt% CNCs in PS matrix, while the ductility was decreased from 60 to 25%. The hydrophobic property could be increased to 138 when 1 wt% CNCs was incorporated.

show abstract

Section: Introductionmentioning

confidence: 99%

Electrospun nanofibrous composites of polystyrene and cellulose nanocrystals: manufacture and characterization

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…Core-shell particles with BA (reactivity ratio = 5.5 and water solubility = 1-1.5 g L -1 ) mainly located in the core (dark region) and the shell (light region) contains rich VA (reactivity ratio = 0.04 and water solubility = 25 g L -1 ) copolymer were produced for instance by seeded emulsion polymerization in the presence of various conventional surfactants such as sodium dodecyl sulfate and octylphenoxy polyethoxy ester (Fig. 7a) [71,72]. Based on the minimum surface free energy change principle, by simply changing the type of surfactant used in the polymerization, the particle morphology can change from core-shell to other morphologies that agree with thermodynamic predictions [73,74].…”

Section: Effect Of Pdms Surfactant On the Particle Morphologymentioning

confidence: 99%

Novel Synthesis Method and Characterization of Poly(vinyl acetate‐butyl acrylate) Latex Particles: Effect of Silanol‐Terminated Poly(dimethylsiloxane) Surfactant on the Seeded Emulsion Copolymerization

Ghorbani

Zohuri

Gholami³

2017

J Surfact & Detergents

View full text Add to dashboard Cite

In a conventional semi‐batch seeded emulsion copolymerization of vinyl acetate/butyl acrylate (VA/BA) using hybrid surfactants namely, dioctyl sulfosuccinate (DOSS) as an anionic surfactant, nonylphenol ethoxylate (KENON 30) as a non‐ionic type, and polydimethylsiloxane surfactant (having hydrophilic silanol‐terminated, called PDMS). The effect of PDMS on the properties of the latex synthesized was investigated by measuring solid content, viscosity, colloidal stability, particle size distributions of the base latex, viscosity average molecular weight (M¯v) of the copolymer, latex particle morphology, glass transition temperature (Tg) of a copolymer and thermal gravimetric analysis (TGA). Particle size of the base latex decreases (Z‐average from 246.48 to 143.69 nm) upon increasing the amount of PDMS surfactant in the recipe (up to 6 wt%). The presence of PDMS surfactant in the hybrid surfactants led to a significant increase in the solid content (from 48.71 to 51.31 wt%), viscosity (from 334 to 806 centipoise, cp) and M¯v (from 1.91 × 105 to 2.34 × 105 g mol−1). Thermal stability and Tg of the copolymer were increased with addition of PDMS surfactant (thermal stability from 344.77 to 389.81 °C and Tg from −20.7 to 21.7 °C). The colloidal stability evaluated using the electrolyte addition method was improved with addition of PDMS surfactant. The uniform morphological structure of the final particle is the main effect of using PDMS in the hybrid surfactants.

show abstract

“…[25][26][27] Core-shell-protected nanostructures and polyelectrolyte complex nanoparticles are effective methods to encapsulate AM for controlled release. [28][29][30][31][32] Inverse emulsion polymerization of an aqueous acrylamide solution and copolymerized polystyrene nanolayer coating as a hydrophobic protective shell have also been reported as a controlled polymer release system, [33][34][35][36] however complex synthetic processes and high cost limits their scale up in oil elds.…”

Section: Introductionmentioning

confidence: 99%

Investigation of inverse emulsion assisted controlled release of polyacrylamides for enhanced oil recovery

et al. 2019

View full text Add to dashboard Cite

show abstract

Aqueous poly(vinyl acetate)-based core/shell emulsion: synthesis, morphology, properties and application

Cited by 22 publications

References 148 publications

Electrospun nanofibrous composites of polystyrene and cellulose nanocrystals: manufacture and characterization

Electrospun nanofibrous composites of polystyrene and cellulose nanocrystals: manufacture and characterization

Novel Synthesis Method and Characterization of Poly(vinyl acetate‐butyl acrylate) Latex Particles: Effect of Silanol‐Terminated Poly(dimethylsiloxane) Surfactant on the Seeded Emulsion Copolymerization

Investigation of inverse emulsion assisted controlled release of polyacrylamides for enhanced oil recovery

Contact Info

Product

Resources

About