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The present work describes the development of high performance cellulose nanocrystals/carboxymethyl cellulose (CNC/CMC) films through a rational design of CNC surface chemistry. Considering the anionic surface nature of CMC, surface cationization of CNCs was performed in order to build strong interfacial bonding by electrostatic attraction and form uniform dispersion state by electrostatic repulsion...
Graphene/polyaniline (PANI) multilayer films were prepared via alternate deposition of negatively charged graphene oxide (GO) and positively charged PANI upon electrostatic interaction, followed by the reduction of their GO components with hydroiodic acid. The thickness of the multilayer film increased linearly with the number of its bilayers and that of each bilayer was measured to be about 3 nm...
Various conducting polymer/hydrophobic insulating polymer (CP/HIP) composite nanofibers have been prepared by electrospinning and vapor deposition polymerization (VDP) with benzoyl peroxide (BPO) as oxidant. BPO is soluble in N,N-dimethylformamide (DMF) and can form homogenous solutions with hydrophobic polymers such as poly(methyl methacrylate) (PMMA) and polystyrene (PS). High-quality nanofibers...
The composites of polypyrrole (PPy) and poly(vinyl alcohol) (PVA) with aligned 3-dimensional (3D) microstructures have been fabricated via vapor deposition polymerization (VDP) of pyrrole onto the microstructured composites of PVA and FeCl 3 (PVA–FeCl 3 ) formed by directional freezing. In these composites, the microstructures of PVA act as the frameworks and the conducting polymer...
Polypyrrole/sulfonated polyaniline (PPY/SPANI) composite films have been prepared by direct electrochemical polymerization of pyrrole in an aqueous solution of SPANI. Spectroscopic results demonstrated that the polyanion, SPANI, was incorporated into the PPY matrix as a dopant. The composite films exhibited a higher thermal stability than that of pure PPY. Scanning electron microscopic images revealed...
In this paper, we report a novel route for electrochemical growth of poly(3,4-ethylenedioxythiophene) (PEDOT) microcups with diameters in the range of 1–4μm. In the process, 3,4-ethylenedioxythiophene (EDOT) was dispersed as microdroplets in the aqueous solution of LiClO 4 and tri(ethylene glycol) (TEG) by sonication. Then, the microdroplets were assembled on the indium tin oxide (ITO) glass...
A sinomenine (SIN) molecule-imprinted monolithic stationary phase (MIMSP) with specific recognition for SIN was prepared by in situ technique, utilizing methacrylic acid (MAA) as a function monomer, ethylene glycol dimethacrylate (EDMA) as a cross-linking agent, and low-polar solvents (toluene and dodecanol) as porogenic solvents. The selectivity of the polymers for SIN was evaluated by high performance...
Polypyrrole (PPy) micro- and nanowires were synthesized through electrochemical polymerization of pyrrole in the aqueous solutions of 1-pyrenesulfonic acid (PSA), in which PSA acted as both surfactant and dopant. Macroscopic studies (SEM and TEM) indicated that the PPy wires have diameters of 120–500nm and length of several micrometers. Electrochemical investigation demonstrated that the PPy wires...
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