Preparation and application of polystyrene‐grafted ZnO nanoparticles

Hong, Ruoyu; Chen, L. L.; Li, J. H.; Li, H. Z.; Zheng, Ying; Ding, Jing

doi:10.1002/pat.926

Cited by 53 publications

(27 citation statements)

References 25 publications

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“…16,17 In fact, it has been shown that a considerable improvement in polymer nanocomposite mechanical properties can be achieved by adding nanosized fillers, such as SiO 2 and ZnO, at low volume content, i.e. in the range 1-5 vol%, [18][19][20] which is very important due to the high cost of nanosized fillers. However, when nanoparticles are used as fillers to prepare polymer nanocomposites, a homogeneous dispersion in the matrix is required.…”

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confidence: 99%

Graphene oxide modified with PMMA via ATRP as a reinforcement filler

et al. 2010

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Graphene is a two-dimensional new allotrope of carbon, which is stimulating great curiosity due to its superior mechanical, electrical, thermal and optical properties. Particularly attractive is the availability of bulk quantities of graphene (G) which can be easily processed by chemical exfoliation, yielding graphene oxide (GO). The resultant oxygenated graphene sheets covered with hydroxyl, epoxy and carboxyl groups offer tremendous opportunities for further functionalization opening plenty of opportunities for the preparation of advanced composite materials. In this work poly(methyl methacrylate) (PMMA) chains have been grafted from the GO surface via atom transfer radical polymerization (ATRP), yielding a nanocomposite which was soluble in chloroform. The surface of the PMMA grafted GO (GPMMA) was characterized by AFM, HRTEM, Raman, FTIR and contact angle. The interest of these novel nanocomposites lies in their potential to be homogenously dispersed in polymeric dense matrices and to promote good interfacial adhesion, of particular relevance in stress transfer to the fillers. PMMA composite films were prepared using different percentages of GPMMA and pristine GO. Mechanical analysis of the resulting films showed that loadings as low as 1% (w/w) of GPMMA are effective reinforcing agents, yielding tougher films than pure PMMA films and even than composite films of PMMA prepared with GO. In fact, addition of 1% (w/w) of GPMMA fillers led to a significant improvement of the elongation at break, yielding a much more ductile and therefore tougher material. Thermal analysis showed an increase of the thermal stability properties of these films providing evidence that strong interfacial interactions between PMMA and GPMMA are achieved. In addition, AFM analysis, in friction force mode, is demonstrated to be an effective tool to analyse the surface filler distribution on polymer matrices.

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Graphene oxide modified with PMMA via ATRP as a reinforcement filler

et al. 2010

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“…The normal size of the zinc oxide nanoparticles was resolved as 21.15 nm as indicated by the Debye-Scherrer condition. A nearby esteem have additionally detailed by Hong et al [16]. No peaks due to impurity were observed, which suggests that high purity ZnO was obtained.…”

Section: Introductionmentioning

confidence: 74%

Mechanical Tribology and Antibacterial Activity of ZnO/Polystyrene Nanocomposite

Al-Karam¹

2017

J Biotechnol Biomater

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In this accomplishment, zinc oxide nanoparticles were make-believe by hail make advances reason zinc acetate as a precursor. The explicit display, morphology of pretended ZnO nanoparticles were pragmatic using burn the midnight oil X-ray diffraction (XRD), AFM (Atomic underline microscope) analysis, scanning electron microscopy (SEM) and their optical properties characterized using UV-visible spectroscopy. XRD niggardly simple turn the intended ZnO duplicate is highly crystalline, having wurtzite crystal structure.AFM tight-fisted essential ramble the fitted ZnO sample is of high purity. UV-Vis absorption sweep showed a regular field for ZnO nanoparticles and exertion chasm explicit close to the typical energy gap of ZnO nanoparticles.The SEM get the hang shows range ZnO nanoparticles designed in this scrutinize are spherical in shape with a smooth rise. The surface rudeness inquiry need TR220 unambiguous acceptable results of prepared ZnO/ polystyrene samples.

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“…It can further be tuned to $3-4 eV by its alloying with magnesium oxide or cadmium oxide, and its electron mobility that strongly varies with temperature and has a maximum of $2000 cm 2 /(V·s) at 80 K. [19] These physical properties made ZnO an important material in preparation of polymer-based nanocomposites. Also, nanosized ZnO has extensive applications in solar cells, [20] gas sensors, [21] varistors, [22,23] [28] In this paper, in order to achieve proper uniform dispersion of NPs and stronger interaction between nano-filler and PAI matrix the surface of ZnO NPs was modified with γ-methacryloxypropyltrimethoxysilane (KH570) and novel PAI/ZnO BNCs were prepared with different ZnO NP content (4, 8, and 12 wt.%) through ultrasound irradiation process. PAI was synthesized by incorporation of optically active segment (L-leucine amino acid) in tetrabutylammonium bromide/triphenyl phosphite (TBAB/TPP) as condensing agent and green reaction media.…”

Section: Introductionmentioning

confidence: 99%

Applications of ultrasound for modification of zinc oxide and fabrication of optically active poly(amide-imide)/zinc oxide bionanocomposites

Mallakpour

Madani

Roshandel

2013

Designed Monomers and Polymers

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This research investigates applying zinc oxide (ZnO) nanoparticles (NPs) as inorganic nanofillers to poly(amide-imide) (PAI) as a polymer matrix via ultrasound technique for the preparation of PAI/ZnO bionanocomposites (BNCs). The surface of ZnO NPs was successfully treated with γ-methacryloxypropyltrimethoxysilane coupling agent (KH570) to decrease the hydrophilicity of NPs. The optically active PAI containing natural L-leucine amino acid was synthesized in a green solvent system which is consisted of tetrabutyl ammonium bromide/triphenyl phosphate. The influences of the ZnO on the structure, morphology, thermal, and optical properties of BNCs were, respectively, characterized by several techniques. All the results indicate that NPs are successfully modified and are compatible with polymer matrix and also proved that there is a homogenous dispersion of ZnO NPs in the polymer matrix in nanoscale.

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Preparation and application of polystyrene‐grafted ZnO nanoparticles

Cited by 53 publications

References 25 publications

Graphene oxide modified with PMMA via ATRP as a reinforcement filler

Graphene oxide modified with PMMA via ATRP as a reinforcement filler

Mechanical Tribology and Antibacterial Activity of ZnO/Polystyrene Nanocomposite

Applications of ultrasound for modification of zinc oxide and fabrication of optically active poly(amide-imide)/zinc oxide bionanocomposites

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