Materials Literature
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Abstract During the synthesis and processing of polymers, a significant amount of polymer may be deposited on the heat transfer surfaces. This deposit is unwanted and is usually named fouling. This study deals with the fouling behavior of a vinyl acetate/vinyl ester copolymer during emulsion polymerization and compare…
This study investigates the rheological thickening effect of surface-modified cellulose nanocrystals (mCNCs) with a triblock copolymer on silicone oil. An amphipathic copolymer comprising hydrophilic methoxypolyethylene glycols and hydrophobic polydimethylsiloxane segments is synthesized and introduced in silicone oil…
Abstract In this overview article, the research on polysiloxane microspheres performed in the authors’ laboratory is briefly reviewed. These microspheres are prepared in water emulsion from polyhydromethylsiloxane (PHMS). This polymer is cross-linked in the emulsion process by hydrosilylation using various low molecul…
Two azo dyes, acid red 1 (AR1) and acid red 18 (AR18), were used alone or in combination with sodium dodecyl sulfate (SDS) for the electropolymerization of a pyrrole monomer. Polypyrrole (PPy) showed higher redox capacity when SDS and AR18 were used simultaneously as dopant agents (PPy/AR18-SDS) than when the conducti…
The IFMIF-DONES (International Fusion Material Irradiation Facility-DEMO Oriented NEutron Source) facility is being designed with the general objective of providing irradiation of representative samples of power fusion machine materials under prototypical conditions. A linear accelerator will deliver deuterons at high…
In this study, the influence of rotary-die equal channel angular pressing (RD-ECAP) processing on the mechanical properties and rolling formability of AZ91 alloys was investigated. The as-cast and pre-homogenized AZ91 alloys were pre-processed by RD-ECAP for 16 passes at 573 K and subjected to post-ECAP rolling at 573…
A series of mononuclear Dy III compounds, [Dy(tmpd) 3 (4,4′-dmpy)] ( 1 ), [Dy(tffb) 3 (4,4′-dmpy)] ( 2 ), [Dy(tffb) 3 (5,5′-dmpy)] ( 3 ), and [Dy(tmpd) 3 (5,5′-dmpy)] ( 4 ) [tmpd = 4,4,4-trifluoro-1-(4-methoxyphenyl)-1,3-butanedione, tffb = 4,4,4-trifluoro-1-(4-fluorophenyl)-1,3-butanedione, 4,4′-dmpy = 4,4′-dimethyl-…
The simultaneous formation of single domain (3×3) and multi domain (√7×√7)R(±19.1°) germanene phases on Al(111) surface in the sub-monolayer range was studied using scanning tunneling microscopy (STM) and density functional theory (DFT) based simulations. Experimental results revealed that both germanene phases nuclea…
Controlling distribution of conductive fillers is a key strategy to construct conductive networks with high efficiency and enhance the conductivity of conductive polymer composites (CPCs). In this work, the distribution of multiwall carbon nanotubes (MWCNTs) in a compatible poly( L -lactide) (PLLA)/poly(oxymethylene)…
Filamentous microorganisms traveling in aerosol particles display enhanced deposition and retention in the lungs. Inspired by this shape-related biological effect, we report here on the use of supramolecular filaments as potential inhalable drug carriers within aerosols via jet nebulization. We found that the peptide…
A femtosecond (fs)-laser-processed surface that repels liquid polymer in water is reported in this paper. We define this phenomenon as the "superpolymphobicity". Three-level microstructures (including microgrooves, micromountains/microholes between the microgrooves, and nanoripples on the whole surface) were directly…
Abstract Nanofabrication is continuously searching for new methodologies to fabricate 3D nanostructures with 3D control over their chemical composition. A new approach for heterostructure nanorod array fabrication through spatially controlled–growth of multiple metal oxides within block copolymer (BCP) templates is pr…
The present work experimentally studies the antisolvent continuous crystallization of flufenamic acid using the coiled flow inverter (CFI) as a novel crystallization device. A multistage antisolvent addition strategy was evaluated. The experimental results show that the mean crystal size increased with the number of a…
A superhydrophilic aluminum surface with fast water evaporation based on nanostructured aluminum oxide was fabricated via anodizing in pyrophosphoric acid. Anodizing aluminum in pyrophosphoric acid caused the successive formation of a barrier oxide film, a porous oxide film, pyramidal bundle structures with alumina na…
While great progress has been made in the theory and realization of invisibility devices, the issue of narrow-bandwidth operation remains unsolved. In particular, physical bounds have been recently derived, based on the Bode-Fano theory of broadband impedance matching, that quantify the inherent difficulty in broadeni…
Cardanol is a natural alkylphenolic compound derived from Cashew NutShell Liquid (CNSL), a non-food annually renewable raw material extracted from cashew nutshells. In the quest for sustainable materials, the curing of biobased monomers and prepolymers with environmentally friendly processes attracts increasing intere…
Zinc oxide (ZnO) and aluminum doped zinc oxide (AZO) nanoparticles were synthesized by a typical sol-gel method. The effect of the doping and the annealing temperatures were studied. The dopant percentage of 4% was fixed. XRD patterns showed that ZnO and Al doped ZnO nanoparticles exhibit good crystallization. The cry…
We report the results of an unpolarized small-angle neutron-scattering (SANS) study on Mn-Zn ferrite (MZFO) magnetic nanoparticles with the aim to elucidate the interplay between their particle size and the magnetization configuration. We study different samples of single-crystalline MZFO nanoparticles with average di…
This work reports the surface modification of sawdust particles with silane-modified alumina nanoparticles and polydimethylsiloxane to create smart micron-sized adsorbents for separation of surfactant-stabilized emulsions. A very fine polysiloxane network (<12 nm) was created on the surface of alumina nanoparticles wh…
Abstract Here, an environmentally‐friendly and scalable process is reported to synthesize reduced graphene oxide (RGO) thin films for printed electronics applications. The films are produced by inkjet printing GO flakes dispersed binder‐free in aqueous solutions followed by treatment with a nonthermal, radio‐frequency…