Magnesium oxide/polyvinyl alcohol/polyacrylamide (MgO/PVA/PAM) nanocomposite films were prepared via a solution chemical method. The effect of PVA and MgO nanoparticles (NPs) loading on the physical properties of PAM is discussed. X-ray diffraction reveals that the average MgO crystallite size of the NPs is ∼25 nm, while adding PVA increases the crystallinity of PAM. FTIR spectra confirm the interaction between blend chains and MgO NPs. Differential scanning calorimetry thermograms illustrate the miscibility between the PVA and the PAM. The melting temperature, the glass transition, as well as the equilibrium swelling ratio, depend on the films' composition. PAM showed a transmittance of 87%, that increased to 90% after PVA addition, but decreased to 74% after MgO loading. Meaningful changes are observed in the extinction coefficient and indirect/direct band gap of PAM due to PVA blending and MgO addition. The influence of MgO NPs on the dielectric constant (ɛ′) of the blend film is reported. The maximum value of AC conductivity of the blend is 4.77 × 10−3 Sm−1, which increased to 8.07 × 10−3 Sm−1 by increasing the MgO loading to 5.0 wt.%. The conduction mechanism changed from the correlated barrier hopping, in the blend, to the large Polaron tunneling with MgO loading. The observed improvements in optical properties and AC conductivity encourage the use of these nanocomposite films in the semiconductors industry.
El-BanaMSMohammedGhEl SayedAMet al.Preparation and characterization of PbO/carboxymethyl cellulose/polyvinylpyrrolidone nanocomposite films. Polym Compos2018; 39: 3712–3725.
2.
BatteLKSullivanRWRanatungaVet al.Impact response in polymer composites from embedded optical fibers. J Compos Mater2018; 52: 3415–3427.
3.
MalekiHRHamediMKubouchiMet al.Experimental study on drilling of jute fiber reinforced polymer composites. J Compos Mater2019; 53: 283–295.
4.
HamdiKAbouraZHariziWet al.Improvement of the electrical conductivity of carbon fiber reinforced polymer by incorporation of nanofillers and the resulting thermal and mechanical behavior. J Compos Mater2018; 52: 1495–1503.
5.
CaoM-SSongW-LHouZ-Let al.The effects of temperature and frequency on the dielectric properties, electromagnetic interference shielding and microwave-absorption of short carbon fiber/silica composites. Carbon2010; 48: 788–796.
6.
MorsiMAEl-KhodarySARajehA. Enhancement of the optical, thermal and electrical properties of PEO/PAM:Li polymer electrolyte films doped with Ag nanoparticles. Physica B: Condens Matter2018; 539: 88–96.
7.
MaJShuJCaoWet al.A green fabrication and variable temperature electromagnetic properties for thermal stable microwave absorption towards flower-like Co3O4@rGO/SiO2 composites. Compos Part B – Eng2019; 166: 187–195.
8.
Cao M-S, Shu J-C, Wang X-X, et al. Electronic structure and electromagnetic properties for 2D electromagnetic functional materials in gigahertz frequency. Ann Phys (Berlin) in press, https://doi.org/10.1002/andp.201800390.
9.
MohammedGhEl SayedAMMorsiWM. Spectroscopic, thermal, and electrical properties of MgO/polyvinyl pyrrolidone/ polyvinyl alcohol nanocomposites. J Phys Chem Solids2018; 115: 238–247.
10.
AwadYMLeeSSOkYSet al.Effects of biochar and polyacrylamide on decomposition of soil organic matter and 14C-labeled alfalfa residues. J Soils Sediments2017; 17: 611–620.
11.
YuLHanMHeF. A review of treating oily wastewater. Arab J Chem2017; 10: S1913–S1922.
12.
FedelMEndoganTHasirciNet al.Blood compatibility of polymers derived from natural materials. J Bioact Compat Polym2012; 27: 295–312.
13.
ZhouX-M. Study on phase change characteristics of PEG/PAM coupling blend. J Appl Polym Sci2010; 117: 1591–1595.
14.
OuKDongXQinCet al.Properties and toughening mechanisms of PVA/PAM double-network hydrogels prepared by freeze-thawing and anneal-swelling. Mater Sci Eng C – Mater2017; 77: 1017–1026.
15.
ZhangHZhaiDHeY. Graphene oxide/polyacrylamide/carboxymethyl cellulose sodium nanocomposite hydrogel with enhanced mechanical strength: preparation, characterization and the swelling behavior. RSC Adv2014; 4: 44600–44609.
16.
ZhouCWuQ. A novel polyacrylamide nanocomposite hydrogel reinforced with natural chitosan nanofibers. Colloid Surface B2011; 84: 155–162.
17.
PatelGSureshkumarMBPatelP. Spectroscopic investigation and characterizations of PAM/PEO blends films. Soft2015; 4: 9–24.
18.
AgoolIRHashimA. Preparation of (PVA-PEG-PVP-MgO, CoO) nanocomposites and study their optical properties. Int J Sci Res (IJSR)2014; 3: 1729–1732.
19.
RajAMEJayachandranMSanjeevirajaC. Fabrication techniques and material properties of dielectric MgO thin films – a status review. CIRP J Manufact Sci Technol2010; 2: 92–113.
20.
DasBMoumitabSGhoshSet al.Biosynthesis of magnesium oxide (MgO) nanoflakes by using leaf extract of Bauhinia purpurea and evaluation of its antibacterial property against Staphylococcus aureus. Mater Sci Eng C2018; 91: 436–444.
21.
NassarMYMohamedTYAhmedISet al.MgO nanostructure via a sol-gel combustion synthesis method using different fuels: an efficient nano-adsorbent for the removal of some anionic textile dyes. J Mol Liq2017; 225: 730–740.
22.
HalderRBandyopadhyayS. Synthesis and optical properties of anion deficient nano MgO. J Alloy Compd2017; 693: 534–542.
23.
LiY-JLiS-LGongPet al.Discrete impurity band from surface danging bonds in nitrogen and phosphorus doped SiC nanowires. Physica E2018; 98: 191–196.
24.
LiY-JLiS-LGongPet al.Inhibition of quantum size effects from surface dangling bonds: the first principles study on different morphology SiC nanowires. Physica B2018; 539: 72–77.
25.
PandeyNShuklaSK. Zinc oxide impregnated polyvinyl alcohol/polyacrylamide hydrogel for optochemical devices. Mater Tod Proc2017; 4: 5687–5691.
26.
ZhangYSongMDiaoYet al.Preparation and properties of polyacrylamide/polyvinyl alcohol physical double network hydrogel. RSC Adv2016; 6: 112468.
27.
WeiQWangYCheYet al.Molecular mechanisms in compatibility and mechanical properties of Polyacrylamide/Polyvinyl alcohol blends. J Mech Behav Biomed Mater2017; 65: 565–573.
28.
CastaldoRLamaGCApreaPet al.Effect of the oxidation degree on self-assembly, adsorption and barrier properties of nano-graphene. Micropor Mesopor Mater2018; 260: 102–115.
29.
El SayedAMTahaSSaidGet al.Controlling the structural and optical properties of nanostructured ZnO thin films by cadmium content. Superlattices Microstruct2014; 65: 35–47.
30.
HeidarizadMŞengörSS. Synthesis of graphene oxide/magnesium oxide nanocomposites with high-rate adsorption of methylene blue. J Mol Liq2016; 224: 607–617.
31.
ShafieeMRMKargarMGhashangM. Characterization and low-cost, green synthesis of Zn2 + doped MgO nanoparticles. Green Process Synth2018; 7: 2–7.
32.
RajeswariNSelvasekarapandianSSanjeevirajaCet al.A study on polymer blend electrolyte based on PVA/PVP with proton salt. Polym Bull2014; 71: 1061–1080.
33.
SriupayoJSupapholPBlackwellJet al.Preparation and characterization of α-chitin whisker-reinforced poly(vinyl alcohol) nanocomposite films with or without heat treatment. Polym J2005; 46: 5637–5644.
34.
RawatAMahavarHKTanwarAet al.Study of electrical properties of polyvinylpyrrolidone/polyacrylamide blend thin films. Bull Mater Sci2014; 37: 273–279.
35.
RicciardiRAuriemmaFDe RosaCet al.X-ray diffraction analysis of poly (vinyl alcohol hydrogels, obtained by freezing and thawing techniques. Macromolecules2004; 37: 1921–1927.
36.
KalambettuABRajangamPDharmalingamS. The effect of chlorotrimethylsilane on bonding of nano hydroxyapatite with a chitosan–polyacrylamide matrix. Carbohydr Res2012; 352: 143–150.
37.
DumitrescuAMLisaGIordanARet al.Ni ferrite highly organized as humidity sensors. Mater Chem Phys2015; 156: 170–179.
38.
NatkańskiPKuśtrowskiPBiałasAet al.Thermal stability of montmorillonite polyacrylamide and polyacrylate nanocomposites and adsorption of Fe(III) ions. Appl Clay Sci2013; 75–76: 153–157.
39.
LuoY-LChenL-LiXuFet al.Fabrication and Characterization of copper nanoparticles in PVA/PAAm IPNs and swelling of the resulting nanocomposites. Met Mater Int2012; 18: 899–908.
40.
TangQHuangKQianGet al.Phosphoric acid-imbibed three-dimensional polyacrylamide/poly(vinyl alcohol) hydrogel as a new class of high-temperature proton exchange membrane. J Power Source2013; 229: 36–41.
41.
El FewatyNHEl SayedAMHafezRS. Synthesis, structural and optical properties of tin oxide nanoparticles and its CMC/PEG–PVA nanocomposite films. Polym Sci Ser A2016; 58: 1004–1016.
42.
Abd-El SalamMHEl-GamalSAbd El-MaqsoudDMet al.Effect of conductive fillers on the cyclic stress-strain and nano-scale free volume properties of silicone rubber. Chin J Polym Sci2014; 32: 558–567.
43.
YangQChenXHeZet al.The glass transition temperature measurements of polyethylene: determined by using molecular dynamic method. RSC Adv2016; 6: 12053–12060.
WypychG. Handbook of polymers, 2nd ed. New York: Elsevier, 2016, pp. 254.
46.
LakourajMMTajbakhshMMokhtaryM. Synthesis and swelling characterization of cross-linked PVP/PVA hydrogels. Iran Polym J2005; 14: 1022.
47.
SchreiberHPHoldenHWBarnaG. Rapid Determination of crosslink densities and interaction parameters from swelling rate data. J Polymer Sci C1970; 30: 471–484.
48.
PeppasNAHiltJZThomasJB. Nanotechnology in therapeutics: current technology and applications, UK: Horizon Scientific Press, 2007.
49.
ParkJSKimHAChoiJBet al.Effects of annealing and the addition of PEG on the PVA based hydrogel by gamma ray. Radiat Phys Chem2012; 81: 857–860.
50.
De SilvaRTMantilakaMMMGPGRatnayakeSPet al.Nano-MgO reinforced chitosan nanocomposites for high performance packaging applications with improved mechanical, thermal and barrier properties. Carbohydr Polym2017; 157: 739–747.
51.
RawatAMahavarHKChauhanSet al.Optical band gap of polyvinylpyrrolidone/polyacrylamide blend thin films. Ind J. Pure Appl Phys2012; 50: 100–104.
52.
El SayedAM. Modification of the micro-structural and optical properties of nanoparticulate Pb-doped magnesia thin films. Mater Res Express2018; 5: 116403.
53.
AzizSBRasheedMAAbidinZHZ. Optical and electrical characteristics of silver ion conducting nanocomposite solid polymer electrolytes based on chitosan. J Eleclectron Mater2017; 46: 6119–6130.
54.
El-GamalSIsmailAMEl-MallawanyR. Dielectric and nano-scale free volume properties of polyaniline/polyvinyl alcohol nanocomposites. J Mater Sci Mater Electron2015; 26: 7544–7553.
55.
RamesanMTSuryaK. Studies on electrical, thermal and corrosion behaviour of cashew tree gum grafted poly(acrylamide). Polym Renewable Resour2016; 7: 81–100.
56.
RamesanMT. Synthesis and characterization of magnetoelectric nanomaterial composed of Fe3O4 and polyindole. Adv Polym Technol2013; 32: 21362–(19).
57.
HodgeIMIngramMDWestAR. Impedance and modulus spectroscopy of polycrystalline solid electrolytes. J Eletroanal Chem1976; 74: 125–143.
58.
ReddyCh.VSHanXZhuQ-Yet al.Dielectric spectroscopy studies on (PVP + PVA) polyblend film. Microelectron Eng2006; 83: 281–285.
59.
El SayedAMEl-GamalS. Synthesis and investigation of the electrical and dielectric properties of Co3O4/(CMC+PVA) nanocomposite films. J Polym Res2015; 22: 97.
60.
HornakJTrnkaPKadlecPet al.Magnesium oxide nanoparticles: dielectric properties, surface functionalization and improvement of epoxy-based composites insulating properties. Nanomaterials2018; 8: 381.
61.
LiYFangXCaoM-S. Thermal frequency shift and tunable microwave absorption in BiFeO3 family. Sci Rep2016; 6: 24837.
62.
LiY-JLiS-LGongPet al.Effect of surface dangling bonds on transport properties of phosphorous doped SiC nanowires. Physica E2018; 104: 247–253.
63.
WenBCaoM-SLuMet al.Reduced graphene oxides: light-weight and high-efficiency electromagnetic interference shielding at elevated temperatures. Adv Mater2014; 26: 3484–3489.
64.
AzizSB. The mixed contribution of ionic and electronic carriers to conductivity in chitosan based solid electrolytes mediated by CuNt salt. J Inorg Organomet Polym2018; 28: 1942–1952.
65.
FangX-YYuX-XZhengH-Met al.Temperature- and thickness-dependent electrical conductivity of few-layer graphene and graphene nanosheets. Phys Lett A2015; 379: 2245–2251.
66.
JonscherAK. The ‘universal’ dielectric response. Nature1977; 267: 673.
67.
PrajapatiGKGuptaPN. Conduction mechanism in un-irradiated and γ-irradiated PVA–H3PO4 polymer electrolytes. Nucl Instrum Meth B2009; 267: 3328–3332.
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