Development of high-performance biopolymer nanocomposites derived from carboxymethyl chitosan/boehmite via green synthesis

Article Polymer Science

Synthesis and characterization of magnetic carboxymethyl chitosan-poly(acrylic acid-itaconic acid) hydrogel for the efficient adsorption of malachite green

Chunyan Lei et al.

Summary: A new type of magnetic hydrogel adsorbent was successfully synthesized and characterized. The adsorbent showed excellent swelling ratio, adsorption capacity and cyclic performance.

JOURNAL OF APPLIED POLYMER SCIENCE (2022)

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Article Polymer Science

Flexible Conductive Nanocomposites for Electrochemical Devices Based on Chlorinated Natural Rubber/Nickel Oxide Nanoparticles

K. Parvathi et al.

Summary: This study investigated the structural, thermal, and temperature-dependent electrical properties of flexible conductive chlorinated natural rubber with various contents of nickel oxide nanoparticles. The addition of nanoparticles improved the thermal stability, dielectric properties, and AC electrical conductivity of the composites. The study emphasized the importance of interfacial interaction between the fillers and rubber chain for network formation.

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS (2022)

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Article Polymer Science

Enhanced optical, thermal and electrical properties of chlorinated natural rubber/zinc ferrite nanocomposites for flexible electrochemical devices

K. Parvathi et al.

Summary: This work investigates the optical, thermal stability, and temperature-dependent electrical properties of chlorinated natural rubber/zinc ferrite nanocomposites. The insertion of zinc ferrite into the rubber matrix leads to a decrease in bandgap energy. The nanocomposites exhibit enhanced thermal stability and electrical properties compared to the parent polymer. Additionally, the conductivity of the nanocomposites shows a non-ohmic behavior, indicating a dynamic relaxation process. The experimental results are in good agreement with theoretical models, suggesting the presence of interfacial interactions in the nanocomposites. These findings are significant for the development of highly-durable flexible electronic devices, actuators, supercapacitors, and elastomeric pressure sensors.

JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY (2022)

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Review Materials Science, Composites

Effect of aging on the biopolymer composites: Mechanisms, modes and characterization

Santhosh Nagaraja et al.

Summary: The aging of biopolymer composites significantly affects their performance and longevity, with their inherent characteristics and physico-chemical changes playing a crucial role in their functioning under different environmental conditions.

POLYMER COMPOSITES (2022)

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Article Engineering, Chemical

Synthesis, characterization, conductivity, and gas-sensing performance of copolymer nanocomposites based on copper alumina and poly(aniline-co-pyrrole)

S. Sankar et al.

Summary: A series of copolymer nanocomposites based on poly(aniline-co-pyrrole) with different contents of copper alumina nanoparticles were synthesized and characterized. The presence and dispersion of nanoparticles in the copolymer matrix were confirmed, and the flexibility of the polymer was reduced with an increase in glass transition temperature. The nanocomposites exhibited increased hopping of charge carriers and excellent gas sensing properties. These nanocomposites have the potential for developing nano-electronic devices.

POLYMER ENGINEERING AND SCIENCE (2022)

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Article Polymer Science

Enhanced dielectric properties, thermal stability and ammonia sensing performance of poly(diphenylamine)/zinc oxide nanocomposites via one step polymerization

Furhan et al.

Summary: PDPA/ZnO nanocomposites synthesized by in-situ chemical polymerization technique exhibit enhanced thermal stability and electrical conductivity, showing improved NH3 gas sensing characteristics with higher ZnO nanoparticle concentrations.

JOURNAL OF APPLIED POLYMER SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Optical, thermal and temperature dependent electrical properties of chlorinated natural rubber/copper alumina nanocomposites for flexible electrochemical devices

K. Parvathi et al.

Summary: This investigation focuses on the optical, thermal, and dielectric properties of chlorinated natural rubber/copper alumina nanocomposites. The study found that these nanocomposites have significant potential for being used in the fabrication of flexible dielectric materials.

RESEARCH ON CHEMICAL INTERMEDIATES (2022)

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Article Polymer Science

Structure, properties, and antibacterial behavior of nickel oxide reinforced natural rubber nanocomposites for flexible electronic applications

K. Parvathi et al.

Summary: In this study, NiO nanoparticles were inserted into NR to improve its properties. The results showed that the thermal stability and mechanical properties of the nanocomposites were significantly enhanced.

JOURNAL OF APPLIED POLYMER SCIENCE (2022)

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Article Materials Science, Multidisciplinary

Enhanced optical properties, thermal transitions, temperature-dependent electrical properties and modelling studies of poly(diphenylamine)/NiO nanocomposites

Furhan et al.

Summary: Conducting polymer nanocomposites based on nickel oxide nanoparticles and poly(diphenylamine) were prepared and characterized in this study. The nanocomposites exhibited magnificent optical properties, thermal stability, high dielectric constant and electrical conductivity. The optimal loading of nickel oxide nanoparticles was found to be 7 wt.%. The presence of crystalline nickel oxide nanoparticles in the poly(diphenylamine) matrix was confirmed by various analysis methods. The dielectric constant and loss tangent decreased with frequency and increased with temperature. The AC conductivity increased with frequency and followed Jonscher's universal power law. The DC conductivity of the composites increased with filler concentration, and the percolation threshold was around 5 wt.%. The experimental DC conductivity values matched the values predicted by the McCullough model.

JOURNAL OF MATERIALS SCIENCE (2022)

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Article Engineering, Chemical

High performance optical and electrical properties of zinc oxide reinforced poly(diphenylamine) nanocomposites for optoelectronic applications

Furhan et al.

Summary: Polymer nanocomposites with good properties were synthesized by incorporating zinc oxide nanoparticles into a poly(diphenylamine) matrix. The addition of nanoparticles improved the optical, crystalline, morphological, thermal, dielectric, and electrical properties of the nanocomposites.

POLYMER ENGINEERING AND SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Copper alumina @ poly (aniline-co-indole) nanocomposites: synthesis, characterization, electrical properties and gas sensing applications

S. Sankar et al.

Summary: Poly(aniline-co-indole)/copper alumina (PANI-co-PIN/Cu-Al2O3) nanocomposites with excellent AC conductivity, dielectric properties, and gas sensing capabilities were synthesized via in situ chemical oxidative polymerization. The successful encapsulation of Cu-Al2O3 nanoparticles in the copolymer was confirmed, and the nanocomposites showed improved electrical and gas sensing properties.

RSC ADVANCES (2022)

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Article Polymer Science

Synthesis, Characterization, Thermal Properties and Temperature-Dependent AC Conductivity Studies of Poly (Butyl Methacrylate)/Neodymium Oxide Nanocomposites

K. Suhailath et al.

Summary: The addition of neodymium oxide nanoparticles enhanced the glass transition temperature and thermal degradation temperature of PBMA, while increasing the electrical conductivity of the nanocomposite. The experimental results demonstrated better compatibility between the components, and the activation energy and exponential values indicated that the system follows small polaron hopping mechanism.

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS (2021)

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Article Materials Science, Composites

Fabrication, mechanical, and electromagnetic studies of cobalt ferrite based-epoxy nanocomposites

Yong Yang et al.

Summary: In this study, CoFe2O4 nanofiller was synthesized and surface-functionalized for the fabrication of epoxy-based CoFe2O4 nanocomposites. The results show that the loading concentration of nanofiller significantly affects the surface resistivity, electrical conductivity, and mechanical properties of the EP-CoFe2O4 nanocomposites.

POLYMER COMPOSITES (2021)

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Article Materials Science, Composites

Mechanical characteristics and hydrophobicity of alkyl ketene dimer compatibilized hybrid biopolymer composites

Sena Caylak et al.

Summary: The study demonstrated that the addition of AKD significantly improved the mechanical strength of hybrid PLA composites, but decreased the tensile and flexural moduli. Moreover, AKD also increased the contact angle of the composites. However, in the presence of glass fiber, AKD had no notable effect on the overall properties of the hybrid PLA composites.

POLYMER COMPOSITES (2021)

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Article Materials Science, Composites

Studies on structural and dielectric behaviour of PVA/PVP/SnO nanocomposites

V Siva et al.

Summary: Hybrid polymer nanocomposites based on PVA/PVP with SnO nanoparticles have been successfully prepared and characterized by XRD, FTIR, and SEM analysis. The addition of SnO nanoparticles increased the crystallinity and hydrogen bonding interaction in the polymer matrix. The high dielectric constant values were observed in PNCs with 1 wt% SnO addition at lower frequencies, with non-Debye behavior confirmed by argand plot and modulus analysis.

COMPOSITES COMMUNICATIONS (2021)

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Article Materials Science, Composites

Characterizing the mechanical properties of nanocomposites with aligned graphene

Lin-Shiang Su et al.

Summary: The study fabricated nanocomposites with aligned graphene platelets by incorporating them into an epoxy matrix through mechanical mixing and sonication, followed by applying an electric field to align the platelets before curing. Experimental results showed that the nanocomposites with aligned graphene exhibited higher tensile moduli and strength compared to those with randomly oriented graphene. In addition, nanocomposites with functionalized graphene showed superior interfacial and mechanical properties when compared to those with reduced graphene oxide.

POLYMER COMPOSITES (2021)

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Review Materials Science, Composites

Influence of nanofillers on biodegradable composites: A comprehensive review

Praveenkumara Jagadeesh et al.

Summary: Continuous generation of E-waste from petroleum-based products causes environmental issues. Biodegradable materials can alleviate this burden, but they lack certain properties. Current research focuses on enhancing biodegradable composites by introducing nanostructures.

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Review Materials Science, Composites

Recent advances in mechanical properties of biopolymer composites: a review

Kishor Kumar Sadasivuni et al.

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Synthesis and characterization of modified properties of poly(methyl methacrylate)/organoclay nanocomposites

T. A. Zidan

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Article Physics, Condensed Matter

Investigations of lithium ion conducting polymer blend electrolytes using biodegradable cornstarch and PVP

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PHYSICA B-CONDENSED MATTER (2020)

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MgO/carboxymethyl chitosan nanocomposite improves thermal stability, waterproof and antibacterial performance for food packaging

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The effect of filler localization on the properties of biopolymer blends, recent advances: A review

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Article Engineering, Chemical

A facile sol-gel synthesis of chitosan-boehmite film with excellent acid resistance and adsorption performance for Pb(II)

Yiting Chen et al.

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The effects of cellulosic fillers on the mechanical, morphological, thermal, viscoelastic, and rheological properties of polyhydroxybutyrate biopolymers

Deniz Aydemir et al.

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The effects of the arrangement of Janus nanoparticles on the tensile strength of blend-basedpolymer nanocomposites

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Significant enhancement of dielectric properties of graphene oxide filled polyvinyl alcohol nanocomposites: Effect of ionic liquid and temperature

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Temperature-dependent AC conductivity and dielectric and impedance properties of ternary In-Te-Se nanocomposite thin films

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Electrical properties and scaling studies of Na3+x ZrxSc2-x(PO4)3 glass ceramic electrolyte for use in Na-ion batteries

Shyam Sundar Gandi et al.

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The conductivity and dielectric studies of polymer electrolytes based on iota-carrageenan with sodium iodide and 1-butyl-3-methylimidazolium iodide for the dye-sensitized solar cells

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Improvement of mechanical properties and thermal stability of biodegradable rice starch-based films blended with carboxymethyl chitosan

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Fumed SiO2 nanoparticle reinforced biopolymer blend nanocomposites with high dielectric constant and low dielectric loss for flexible organic electronics

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Inhibition of bacterial biofilms by carboxymethyl chitosan combined with silver, zinc and copper salts

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Investigation of the Ionic Conduction Mechanism in Carboxymethyl Cellulose/Chitosan Biopolymer Blend Electrolyte Impregnated with Ammonium Nitrate

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Chitosan films and coatings prevent losses of fresh fruit nutritional quality: A review

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Development of high-performance biopolymer nanocomposites derived from carboxymethyl chitosan/boehmite via green synthesis

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