Synthesis of Poly (methyl methacrylate)/Zinc Oxide Nanocomposite with Core-Shell Morphology by Atom Transfer Radical Polymerization

Abbasian, Mojtaba; Aali, Nafiseh Khakpour; Shoja, Solmaz Esmaeily

doi:10.1080/10601325.2013.813814

Cited by 40 publications

(17 citation statements)

References 33 publications

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“…ZnO nanoparticle was prepared according to the following procedure . Solutions A and B were prepared as follows: Solution A contains 29.747 g of zinc nitrate hexahydrate dissolved in 1 L of distilled water, and Solution B contains 12.718 g of sodium carbonate dissolved in 1 L of distilled water.…”

Section: Methodsmentioning

confidence: 99%

PVDF membrane assisted by modified hydrophobic ZnO nanoparticle for membrane distillation

Ardeshiri

Salehi

Peyravi

et al. 2018

Asia-Pacific J Chem Eng

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In this study, the modified ZnO/poly vinylidene fluoride (PVDF) membranes were prepared to examine the membrane distillation performance. The modified ZnO nanoparticle was synthesized using 3-aminopropyltriethoxysilane as a coupling agent and lauric acid in order to increase the hydrophobicity of nanoparticle surface. The modified nanoparticles with 0.25%, 0.5%, 1%, and 2% contents were intercalated within PVDF scaffold to prepare composite membranes through phase inversion method. The influence of modified nanoparticle content on the characteristics of membranes including hydrophobicity, morphology, porosity, liquid entry pressure of water, and direct contact membrane distillation performance was investigated. By adding modified ZnO nanoparticle into casting solution, porosity and roughness were increased and revealed by scanning electron microscopy and atomic force microscopy, respectively. The results of direct contact membrane distillation performance was indicated that the permeate flux of modified membranes had a significant increase in comparison with neat PVDF membrane. Also, the thermal property of these nanocomposite membranes was examined.

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Section: Methodsmentioning

confidence: 99%

PVDF membrane assisted by modified hydrophobic ZnO nanoparticle for membrane distillation

Ardeshiri

Salehi

Peyravi

et al. 2018

Asia-Pacific J Chem Eng

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“…However, the past few years have witnessed a rapid development in the field of controlled radical polymerization (CRP) for synthesizing tailor-made polymers with well-defined architecture and predictable molecular weights [21]. A number of techniques have been explored to achieve this control: atom transfer radical polymerization (ATRP) [22][23][24], nitroxide-mediated radical polymerization (NMRP) [25][26][27], and reversible addition fragmentation process (RAFT) [28,29]. The use of cationic polymer and cationic amphiphilic copolymer prepared in control manner has been reported by Chirowodza et al [30] who used surface-initiated RAFT polymerization of styrene from laponite clay surfaces by A new cationic chain transfer agent, 2-(2-(butylthio-carbonothioylthio) propanoyloxy) -N, N, N -trimethylethan aminium iodide.…”

Section: Introductionmentioning

confidence: 99%

Polymericaly modified clays to preparation of polystyrene nanocomposite by nitroxide mediated radical polymerization and solution blending methods

2015

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Polymericaly modified clays that contain an oligomeric poly (styrene-co-chloromethyl styrene) ammonium salt have been prepared and used to preparation of polystyrene (PS) nanocomposites. First, PS and poly(styrene-co-chloromethyl styrene) [P(St-co-CMSt)] were synthesized by nitroxide mediated living free radical polymerization (NMRP) by TEMPO iniferter .Then the copolymer was coupled with N, N-dimethyl hexadecyl amine to prepare polymeric modifier by anion exchange of chlorine group of chloromethyl styrene (CMSt) by quaternary amine. The synthesized polymeric modifier was mixed with nanoparticle of silica to change the property of clay surface from hydrophilic to hydrophobic via cation exchange of Na 1 with alkylammonium ions. For synthesizing of nanocomposites, we used polymericaly modified montmorillonite and PS that was synthesized by NMRP technique. Intercalated nanocomposites and in some cases, exfoliated or mixed intercalated/exfoliated nanocomposites of all of these polymers have been produced by solution blending method. The prepared materials were characterized by X-ray diffraction, Transmission electron microscopy, Fourier-transform infrared, 1 H nuclear magnetic resonance, and gel permeation chromatography techniques. Effect of layered silicates on thermal properties and glass transition temperature of PS was investigated using TGA and DSC techniques. POLYM.

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“…Therefore, there is a lack of control over molecular weight and polydispersity of the graft chains [18]. These problems can be circumvented through applying of living radical polymerization methods such as: atom transfer radical polymerizations (ATRP) [19][20][21], nitroxide-mediated polymerizations (NMP) [22][23][24] and reversible addition-fragmentation chain transfer polymerization (RAFT) [25][26][27]. Metalcatalyzed living-radical polymerization, generally called atom-transfer radical polymerization (ATRP), is one of the most widely used methods for controllable radical polymerization and is based on the reversible reaction of low oxidation-state metal complexes with an alkyl halide, generating radicals and the corresponding high-oxidation state metal complexes with a coordinated halide ligand (Scheme 1) [28].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Cellulose-graft-Polychloromethylstyrene-graft-Polyacrylonitrile Terpolymer/Organoclay Bionanocomposite by Metal Catalyzed Living Radical Polymerization and Solvent Blending Method

Abbasian

Pakzad

Kobra

2017

Polymer-Plastics Technology and Engineering

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A bionanocomposite of grafted cellulose and organo modified clay was synthesized through solution intercalation method. For this purpose, chloromethylstyrene was grafted onto cellulose using acryloyl chloride and the subsequent free radical polymerization.The synthesized cellulose-graft-poly chloromethylstyrene was used as an atom transfer radical polymerization macroinitiator of acrylonitrile in the presence of CuCl /2, 2'-bipyridine catalyst system, to prepare the cellulose-graft-poly chloromethyl styrenegraft-polyacrylonitrile terpolymer. For preparing the modified clay, Na-MMT was mixed with hexadecyl trimethyl ammonium chloride salt. Finally, cellulose -graft-poly chloromethylstyrene -graft -polyacrylonitrile / organoclay bionanocomposite was prepared in CCl 4 by solution intercalation method. Downloaded by [University of California Santa Barbara] at 16:41 22 June 2016 2 Graphical Abstract:

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Synthesis of Poly (methyl methacrylate)/Zinc Oxide Nanocomposite with Core-Shell Morphology by Atom Transfer Radical Polymerization

Cited by 40 publications

References 33 publications

PVDF membrane assisted by modified hydrophobic ZnO nanoparticle for membrane distillation

PVDF membrane assisted by modified hydrophobic ZnO nanoparticle for membrane distillation

Polymericaly modified clays to preparation of polystyrene nanocomposite by nitroxide mediated radical polymerization and solution blending methods

Synthesis of Cellulose-graft-Polychloromethylstyrene-graft-Polyacrylonitrile Terpolymer/Organoclay Bionanocomposite by Metal Catalyzed Living Radical Polymerization and Solvent Blending Method

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