Highly Monodisperse Sub‐microspherical Poly(glycidyl methacrylate) Nanocomposites with Highly Stabilized Gold Nanoparticles

Yan, Xingru; Li, Maolin; Long, Jun; Zhang, Xi; Wei, Huige; He, Qingliang; Rutman, D. S.; Cao, Dapeng; Wei, Suying; Chen, Guofang; Guo, Zhanhu

doi:10.1002/macp.201400097

Cited by 14 publications

(9 citation statements)

References 70 publications

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“…5a) shows the three characteristic reflections of cellulose I (native cellulose) at ca. 2θ 14.8°, 16.9°and 22.9°corresponding to the (100), ( 010) and (110) crystallographic planes [39], whereas PGMA and cross-linked PGMA exhibited a diffraction profile characteristic of amorphous polymeric materials, in good agreement with previously published data [40]. On the other hand, the nanocomposites diffractograms kept the main features of cellulose but the intensity of the peaks at ca.…”

Section: Structural and Morphological Characterizationsupporting

confidence: 90%

“…In addition, both exhibit an initial loss allocated to the release of adsorbed water (loss of ca. 1.4 wt%), in line with data reported elsewhere [40,42]. The cross-linked PGMA started to decompose close to 278°C and reached the two maximum decomposition temperatures at about 352°C and 402°C, which correspond to the depolymerization to monomer and ester decomposition [43].…”

Section: Thermal Stabilitysupporting

confidence: 88%

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Poly(glycidyl methacrylate)/bacterial cellulose nanocomposites: Preparation, characterization and post-modification

Faria

Vilela

Mohammadkazemi

et al. 2019

International Journal of Biological Macromolecules

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Nanocomposites composed of poly(glycidyl methacrylate) (PGMA) and bacterial cellulose (BC) were prepared by the in-situ free radical polymerization of glycidyl methacrylate (GMA) inside the BC network. The resulting nanocomposites were characterized in terms of structure, morphology, water-uptake capacity, thermal stability and viscoelastic properties. The three-dimensional structure of BC endowed the nanocomposites with good thermal stability (up to 270°C) and viscoelastic properties (minimum storage modulus = 80 MPa at 200°C). In addition, the water-uptake and crystallinity decreased with the increasing content of the hydrophobic and amorphous PGMA matrix. These nanocomposites were then submitted to post-modification via acid-catalysed hydrolysis to convert the hydrophobic PGMA into the hydrophilic poly(glyceryl methacrylate) (PGOHMA) counterpart, which increased the hydrophilicity of the nanocomposites and consequently improved their wateruptake capacity. Besides, the post-modified nanocomposites maintained a good thermal stability (up to 250°C), viscoelastic properties (minimum storage modulus = 171 MPa at 200°C) and porous structure. In view of these results, the PGMA/BC nanocomposites can be used as functional hydrophobic nanocomposites for postmodification reactions, whereas the PGOHMA/BC nanocomposites might have potential for biomedical applications requiring hydrophilic, swellable and biocompatible materials.

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Section: Structural and Morphological Characterizationsupporting

confidence: 90%

Section: Thermal Stabilitysupporting

confidence: 88%

Poly(glycidyl methacrylate)/bacterial cellulose nanocomposites: Preparation, characterization and post-modification

Faria

Vilela

Mohammadkazemi

et al. 2019

International Journal of Biological Macromolecules

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“…As can be seen, after functionalization of PGMA, the initiation temperature of thermal degradation has increased from 195 to 240 °C. This increase in the starting temperature of the degradation can be attributed to the rise in thermal resistance and a decrease in thermal conductivity that impedes heat transfer 37 . In fact, surface functionalization of the PGMA by imidazolium iodide groups reduces the thermal conductivity in the polymer lattice and increases the heat resistance.…”

Section: Resultsmentioning

confidence: 99%

Enhanced adsorption of perfluorooctanoic acid using functionalized imidazolium iodide ionic liquid‐based poly (glycidyl methacrylate)

Nejad

Arabnejad

et al. 2021

J of Applied Polymer Sci

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Per‐ and polyfluoroalkyl substances (PFASs) are among the emerging pollutants of public health and the environment due to environmental persistence, bioaccumulation, and potential toxicity. Removal of PFAS under mild conditions is a challenge. Therefore, employment of organic functionality immobilized on polymeric sorbents has driven significant attention. Herein, new imidazolium‐based ionic liquid (IIL) covalently grafted on poly (glycidyl methacrylate) (PGMA) support was synthesized successfully and characterized by Fourier transform infrared, scanning electron microscope, and thermal gravimetric analysis. The functionalized imidazolium ionic liquid‐based PGMA was applied in perfluorooctanoic acid (PFOA) removal from an aqueous solution. The effect of contact time, adsorbent dose, temperature, pH, and counter anions investigated on the extent of adsorption has been investigated. The concentration of PFOA solutions was measured by ethyl violet active substances assay, and equilibrium data were analyzed by Langmuir, Freundlich and Tempkin isotherms. The experimental results have been fitted to Langmuir model at ambient temperature and the maximum monolayer coverage capacity (qm) was found to be 769.23 mg/g. Also the thermodynamic parameters were obtained, and observed that the adsorption of PFOA onto imidazolium iodide‐PGMA was an endothermic and spontaneous process at the temperatures under investigation.

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“…The TG curves of PGMA and its nanohybrid were obtained under N 2 atmosphere, so the nanohybrids exhibit lower thermal stability than PGMA. It is assumed that the nanohybrids are more thermally stable in air than the reference polymer as it may shift upward the degradation temperature of polymer .…”

Section: Resultsmentioning

confidence: 99%

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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Highly Monodisperse Sub‐microspherical Poly(glycidyl methacrylate) Nanocomposites with Highly Stabilized Gold Nanoparticles

Cited by 14 publications

References 70 publications

Poly(glycidyl methacrylate)/bacterial cellulose nanocomposites: Preparation, characterization and post-modification

Poly(glycidyl methacrylate)/bacterial cellulose nanocomposites: Preparation, characterization and post-modification

Enhanced adsorption of perfluorooctanoic acid using functionalized imidazolium iodide ionic liquid‐based poly (glycidyl methacrylate)

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

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