Poly(vinyl acetate)/Silver Nanocomposite Microspheres Prepared by Suspension Polymerization at Low Temperature

Yeum, Jeong Hyun; Sun, Qiang; Deng, Yulin

doi:10.1002/mame.200400313

Cited by 37 publications

(19 citation statements)

References 28 publications

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“…The fabrication of CuNPs on the hydrophobic PGMA surface induces hydrophilicity in nanohybrids . In PGMA/Cu nanohybrid, some cracks were also seen (Figs.…”

Section: Resultsmentioning

confidence: 95%

Direct deposition of copper nanoparticles on poly(glycidyl methacrylate) beads

Safiullah¹,

Wasi²,

Basha³

2016

Polymer Composites

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Fabrication of Copper nanoparticles (CuNPs) on the Poly(glycidyl methacrylate) (PGMA) to prepare Poly(glycidyl methacrylate) core/copper nanoparticle shell nanocomposite (PGMA/Cu nanohybrid) by deposition method. The deposition method consists of two simple steps (i) The synthesis of PGMA beads by suspension polymerization followed by (ii) direct deposition of CuNPs on activated PGMA beads. The PGMA beads were used as a soft template to host the CuNPs without surface modification of it. Two different concentrations of copper salts (1% and 5%) were employed to know the effect of concentration on the shape and size of nanoparticles. The catalytic activity of PGMA/Cu nanohybrids were tested for the reduction of 4‐nitrophenol (4NP) to 4‐aminophenol (4AP) with an excess amount of sodium borohydride (NaBH4). The results showed that, the diverse sizes and shapes of CuNPs were deposited on the PGMA matrix. The X‐ray diffraction study revealed that the CuNPs were present on the surface of the PGMA matrix. The scanning electron microscopic images show that the fabrication of CuNPs on the PGMA matrix changes the morphology and nature of PGMA beads significantly. The catalytic studies have demonstrated that the PGMA/Cu nanohybrid 1% exhibit better catalytic activity than 5%. POLYM. COMPOS., 39:1913–1921, 2018. © 2016 Society of Plastics Engineers

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“…The fabrication of CuNPs on the hydrophobic PGMA surface induces hydrophilicity in nanohybrids . In PGMA/Cu nanohybrid, some cracks were also seen (Figs.…”

Section: Resultsmentioning

confidence: 95%

Direct deposition of copper nanoparticles on poly(glycidyl methacrylate) beads

Safiullah¹,

Wasi²,

Basha³

2016

Polymer Composites

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“…One solution is the utilization of the in situ polymerization of monomers in the presence of silver nanoparticles which has proven to be more effective and costing less compared with two other approaches described previously. 20 In the other approach sets the simultaneous polymerization and the metal reduction. 21 One technique in which the in situ polymerization of monomers in the presence of metal nanoparticles can be performed is the emulsion polymerization.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of latex based antibacterial acrylate polymer/nanosilver via in situ miniemulsion polymerization

2011

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Silver nanoparticles were incorporated into poly-{methyl methacrylate-butyl acrylate-acrylic acid}using two different approaches. The first approach was based on dispersing the nanosilver particles in acrylic latex (previously synthesized by the emulsion polymerization) and the second is the in situ polymerization of acrylate monomers in the presence of silver nanoparticles by miniemulsion polymerization. Miniemulsion polymerization can yield a better dispersion of nanosilver in the polymeric particles because organic particles can be dispersed directly in the monomer droplets becoming encapsulated upon polymerization. Morphological investigations were performed using SEM and TEM. FTIR and thermal analyses revealed the silver nanoparticles to be located in the polymeric structure of latex. The nanocomposite latex was compared with the neat latex of the same monomer structure. A comparison of these results showed an increase in the degradation temperature and glass transition temperature (T g ) compared to the blank latex. The antibacterial properties were determined using the disc diffusion method against both gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli). The nanocomposite synthesized via in situ miniemulsion polymerization showed highly potent antibacterial activity toward both gram-positive and gram-negative bacteria comparing the neat latex and the blended nanocomposite, which makes it useful for a wide range of biomedical and general applications.

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“…Heterogeneous polymerization processes, such as water‐based emulsions and suspensions have been widely used for the production of specialized polymers for advanced applications . Among these polymerization processes, suspension polymerization is immensely important for many industrial practices.…”

Section: Introductionmentioning

confidence: 99%

“…Heterogeneous polymerization processes, such as water-based emulsions and suspensions have been widely used for the production of specialized polymers for advanced applications. [1][2][3] Among these polymerization processes, suspension polymerization is immensely important for many industrial practices. The polymers produced by this method can directly be used for specific applications such as in chromatography and as ion exchange resins etc.…”

Section: Introductionmentioning

confidence: 99%

Tailoring the Particle Size Distribution in Suspension Polymerization of Poly(MMA‐co‐EGDMA): Role of Stabilizer and Agitation Rate

Sharma

Khan

Thakur

et al. 2017

Macromolecular Symposia

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In suspension polymerization, the particle size distribution plays important role since it determines the application and process ability of final product. However, the particle size distribution (PSD) can be controlled by varying operating parameters and this can improve the quality of final product. Herein, the present work focuses on role of stabilizer concentration and agitation speed on controlling PSD in suspension polymerization of crosslinked porous poly(methylmethacrylate‐co‐ethyleneglycoldimethacrylate) p(MMA‐co‐EGDMA).By controlling these two parameters particle size distribution results in in the range of 500–841 μm which is desirable for various industrial applications. The percent yield of particles falling in the range of 500–841 μm was found 73 ± 1.0% at PVA concentration 2%w/v and at agitation rate of 220 rpm. The Sauter mean diameter has also been evaluated. As PVA concentration and agitation rate increased, mean drop size decreased and PSD became narrower which led to reducing the Sauter mean diameter. The experimental results reveal that by controlling only two parameters the desirable PSD could be obtained.

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Poly(vinyl acetate)/Silver Nanocomposite Microspheres Prepared by Suspension Polymerization at Low Temperature

Cited by 37 publications

References 28 publications

Direct deposition of copper nanoparticles on poly(glycidyl methacrylate) beads

Direct deposition of copper nanoparticles on poly(glycidyl methacrylate) beads

Synthesis of latex based antibacterial acrylate polymer/nanosilver via in situ miniemulsion polymerization

Tailoring the Particle Size Distribution in Suspension Polymerization of Poly(MMA‐co‐EGDMA): Role of Stabilizer and Agitation Rate

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