Materials Literature
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Abstract Changes in cotton fabrics brought about by different swelling agents and different types of finishing procedures have been studied in this work, using a single‐step swelling of cotton in the reagent. Cotton fabrics were treated with different alkalis and mixtures of alkalis and other additives and finished wi…
Hyperbranched polyglycidol (PGLD) was synthesized via anionic ring‐opening polymerization of glycidol using a special anionic initiator with multiple initiation sites. The resultant polymers were characterized by 1H and 13C‐NMR spectra for confirming their structures, which consisted of linear, hyperbranched and dendr…
Abstract Grafting of polymer brushes on the poly(vinylidene fluoride) (PVDF) films was carried out by the surface‐initiated free radical polymerization. Surface‐initiators were immobilized on the PVDF films by surface hydroxylation and esterification of the surface‐tethered hydroxyl groups with 4,4′‐azobis(4‐cyanopent…
Polyimide‐silica hybrid materials have been prepared through the sol‐gel process by mixing various proportions of tetraethoxysilane (TEOS) with polyamic acids (PAAs). Two types of PPAs were employed. The first was obtained by reacting an equimolar mixture of oxydianiline (ODA) and pyromellitic dianhydride (PMDA) in di…
Abstract In this work, we present a theoretical discussion regarding the Flory–Huggins χ interaction parameter for 11 random copolymer‐solvent systems along with their corresponding polymer pairs. Copolymers studied are poly(acrylonitrile‐ co ‐butadiene) in acetonitrile, poly(styrene‐ co ‐acrylonitrile) in 1,2‐dichlor…
Conducting polyaniline doped with polymeric acids was synthesized by a in situ chemical polymerization method. The synthesized polymers were characterized by using UV‐Visible, FT‐IR spectroscopy and SEM analysis. Thermal stability of these polymers was evaluated by using TGA/DSC analysis. Among the three polymeric aci…
Abstract Blending is an important way to obtain materials based on intrinsically conductive polymers and conventional plastics and rubber materials. Much research has been carried out to determine the best performance of materials be used for electrostatic dissipation and electromagnetic interference shielding. Mechan…
This Special Issue on supramolecular approaches to organic electronics and nanotechnology , borne out of a symposium of the European Materials Research Society meeting in 2004, brings together a number of excellent contributions from many leading scientists in supramolecular‐systems research. Stimulating highlights of…
Abstract Poly( L ‐lactic acid) (PLLA)/gelatin blend membranes were prepared by solution casting method and using dimethyl sulfoxide (DMSO) as a cosolvent. Scanning electron microscopy measurement indicated that when the amounts of gelatin in PLLA/gelatin blend membranes are less than 5%, the sizes of phase separation…
The eight-band effective-mass Hamiltonian of the free-standing narrow-gap $\mathrm{InAs}$ quantum ellipsoids is developed, and the electron and hole electronic structures as well as optical properties are calculated by using the model. The energies, wave functions and transition probabilities of quantum spheres as fun…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Abstract The synergy of power ultrasound with screen printed electrodes and screen printed modified electrodes is shown to be possible and beneficial. Proof‐of‐concept is shown for the anodic stripping voltammetry of lead at screen printed electrodes and screen printed calomel modified electrodes offering shorter depo…
Abstract The reaction of poly(allyl azide) (PAA; number‐average molecular weight = 1800 g/mol) with N ‐phenyl maleimide, 4,4′‐bis(maleimidodiphenyl) ether, 4,4′‐(bismaleimidodiphenyl) sulfone, and 1,6‐bismaleimido hexane is described in this article. As indicated by Fourier transform infrared studies, the azido group…
Strains of Escherichia coli K12, including MG-1655, accumulate methyl-alpha-D-glucopyranoside via the phosphoenolpyruvate-dependent glucose:phosphotransferase system (IICB(Glc)/IIA(Glc)). High concentrations of intracellular methyl-alpha-D-glucopyranoside 6-phosphate are toxic, and cell growth is prevented. However, t…
Abstract Agricultural wastes such as olive pomace and barley bran have been transformed in plastic by esterification with fatty acid chlorides after acidic or alkaline delignification. These esterifications were carried out in homogenous solution DMA/LiCl by classical heating or microwave activation. The plastics obta…
Abstract Low plasticity burnishing (LPB) is a surface enhancement method that produces a deep layer of compressive residual stress with minimal cold working and an improved surface finish. Extensive fatigue testing, performed on numerous metal alloys in simulated environmental conditions, demonstrates that LPB signifi…
Abstract Interfacial agents as compatibilizers have recently been introduced into polymer blends to improve microstructure and mechanical properties of thermoplastics. In this way, it is possible to prepare a mixture of polymeric materials that can have superior mechanical properties over a wide temperature range. In…
We present experimental and theoretical results for the phase behavior of mixtures of oppositely charged globular protein molecules in aqueous solutions containing monovalent salt. These colloidal mixtures are interesting model systems, on the one hand for electrolyte solutions ("colloidal ionic liquids"), and on the…
Abstract The self‐condensing vinyl polymerization of an AB* monomer formed in situ by atom transfer radical addition from divinylbenzene (DVB) and (1‐bromoethyl)benzene (BEB) using atom transfer radical polymerization technique was studied. The catalyst concentration has a dramatic effect on polymerization. To study t…
When first published, Figures 4 and 5 were incorrect. The correct Figures 4 and 5 are shown below: Fracture surfaces after crack opening of CT-samples; left: Araldite-F, right: nano SiO2-reinforced. High magnification SEM at the crack tip zone.