S. M. Sayyah、Mohamed M. EL-Deeb2006-12-27Journal of Applied Polymer Science
Abstract Electrochemical copolymerization of a binary mixture of pyrrole and 2‐amino‐4‐phenylthiazole on platinum electrode in acid medium was carried out. The kinetic parameters were calculated using ex situ microgravimetric and electrochemical data. The experimentally obtained kinetic equations were R P,W = k W [aci…
Organic Electronics and PhotovoltaicsConducting polymers and applicationsElectrochemical Analysis and Applications
Kamlesh Kumari、Patit Paban Kundu2006-12-27Journal of Applied Polymer Science
Abstract In vitro studies have been carried on semiinterpenetrating polymer network (IPN) beads of chitosan–alanine as carrier for the controlled release of chlorpheniramine maleate (CPM) drug. A viscous solution of chitosan–alanine was prepared in 2% acetic acid solution, extruded as droplets by a syringe to NaOH–met…
Hydrogels: synthesis, properties, applicationsPolymer Surface Interaction StudiesAdvanced Drug Delivery Systems
Ampornphan Siriviriyanun、Edgar A. O’Rear、Nantaya Yanumet2006-12-27Journal of Applied Polymer Science
Abstract Poly(methyl methacrylate) (PMMA) was applied to polyester fabric using a surface analog of emulsion polymerization. The admicellar polymerization was carried out using 1.5 m M dodecylbenzenesulfonic acid (DBSA) at pH 4 with 0.15 M NaCl, 1 : 8 DBSA:monomer, and 1 : 10 initiator:monomer molar ratio. The PMMA fi…
Surface Modification and SuperhydrophobicityMicroplastics and Plastic PollutionPolymer Surface Interaction Studies
Hongjun Xiang、Jinlong Yang、Jian Hou 等 4 位作者2006-12-27Physical Review Letters
We develop a novel linear-scaling [O(N)] algorithm for calculating the optical dielectric constant and Born effective charge. Our method relies on the fact that only the sum of the nondiagonal parts of the electric field perturbation in solids contributes to the first-order derivative density matrix, which can then be…
Graphene research and applicationsSemiconductor materials and devicesChemical and Physical Properties of Materials
Jiřı́ Kotek、Jaroslav Ščudla、Miroslav Šlouf 等 4 位作者2006-12-27Journal of Applied Polymer Science
Abstract This study aims to explore the joint effects of specific β‐nucleation and rubber dispersion on morphology and mechanical behavior of materials derived from isotactic polypropylene. A β‐nucleator ( N , N ′‐dicyclohexylnaphthalene‐2,6‐dicarboxamide) and an amorphous EPM rubber were used for the modification of…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
Prasun Kumar Roy、P. Surekha、Chitra Rajagopal 等 4 位作者2006-12-27Journal of Applied Polymer Science
Abstract This article reports the effect of three cobalt carboxylates—cobalt stearate (CoSt 3 ), cobalt palmitate (CoPal 3 ), and cobalt laurate (CoLau 3 )—on the thermo‐oxidative degradation of low‐density polyethylene (LDPE) films prepared by sheeting process. The carboxylates were blended with LDPE in the concentra…
Polymer crystallization and propertiesRecycling and Waste Management TechniquesPolymer Science and PVC
S. Periyasamy、Deepti Gupta、M L Gulrajani2006-12-27Journal of Applied Polymer Science
Abstract Surface treatment of mulberry silk was carried out using a VUV excimer lamp (172 nm). The changes occurring in morphology and physical properties of silk were studied. The nanopores created on the surface of treated samples were quantitatively analyzed using a high resolution scanning electron microscope. The…
Surface Modification and SuperhydrophobicityTextile materials and evaluationsSilk-based biomaterials and applications
Laura B. Ruppalt、Joseph W. Lyding2006-12-27Small
Naturally occurring carbon-nanotube heterojunctions provide a unique opportunity for studying nearly one-dimensional metal–semiconductor (M–S) interfaces. Coupling the nanoscale lateral precision of the ultrahigh-vacuum STM with spatially-resolved electronic measurements enables detailed characterization of a single-w…
Carbon Nanotubes in CompositesGraphene research and applicationsForce Microscopy Techniques and Applications
Yong Gao、Peng He、Jie Lian 等 10 位作者2006-12-27Journal of Applied Polymer Science
Abstract The time effect of ultrasonication was investigated for dispersing carbon nanofibers (CNFs) into a polycarbonate (PC) matrix on the mechanical properties of thus‐produced composites. The effects of CNF surface modification by plasma treatment and the CNF concentration in composites on their mechanical propert…
Carbon Nanotubes in CompositesFiber-reinforced polymer compositesPolymer Nanocomposite Synthesis and Irradiation
Mohamed Petit、A. Daoudi、M. Ismaïli 等 4 位作者2006-12-27Physical Review E
We have studied the effect of an anisotropic polymer network on the coupling of molecular tilt to applied electric field in the chiral S{A} phase. The polymer network is formed from a photoreactive achiral monomer in a thin planar S{C}{*} cell. Experimental data, obtained from electro-optical measurements near to the…
Liquid Crystal Research AdvancementsSpectroscopy and Quantum Chemical StudiesMolecular spectroscopy and chirality
Ilaria Cucchi、Fabrice Spano、Umberto Giovanella 等 7 位作者2006-12-27Small
Zeolite crystals are embedded in nanofibers (see image) electrospun from dye-doped polymer solutions containing the highly fluorescent zeolite L crystals. Dye-loaded zeolites, integrated into nanowires with diameters in the range of 150 to 600 nm, are well oriented along the fiber axis, forming very bright nanometric…
Advanced Photocatalysis TechniquesConducting polymers and applicationsElectrospun Nanofibers in Biomedical Applications
Zijian Tang、N. R. Aluru2006-12-27Physical Review B
We investigate thermodynamic and mechanical properties of silicon nanostructures at finite temperature. Thermodynamic properties for finite-temperature solid systems under isothermal conditions are characterized by the Helmholtz free energy density. The static part of the Helmholtz free energy is obtained directly fro…
Advancements in Semiconductor Devices and Circuit DesignNanowire Synthesis and ApplicationsThermal properties of materials
Tomoya Mizukoshi、Hidetoshi Matsumoto、Mie Minagawa 等 4 位作者2006-12-27Journal of Applied Polymer Science
Abstract Microtextured surfaces were prepared by electrospray deposition (ESD) from hydrophilic and hydrophobic acrylic resin solutions. The surface morphologies and topologies were characterized using scanning electron microscopy and laser profile microscopy, respectively. Wetting behaviors on the surfaces were chara…
Surface Modification and SuperhydrophobicityElectrospun Nanofibers in Biomedical ApplicationsElectrohydrodynamics and Fluid Dynamics
Hocine Djidjelli、Amar Boukerrou、R. Founas 等 8 位作者2006-12-27Journal of Applied Polymer Science
Abstract Mechanical property changes, thermal stability, and water absorption capacity of poly(vinyl chloride) (PVC)/sisal fiber composites were assessed with respect to the effect of maleic anhydride chemical treatments of the sisal fiber, for five different sisal fiber contents, varying from 0 to 30% by weight in th…
Natural Fiber Reinforced Composites
Carlos F. Jasso‐Gastinel、Luz Cecilia Lopez-Ureta、Luis J. González‐Ortiz 等 6 位作者2006-12-27Journal of Applied Polymer Science
Abstract Two‐stage polymerization has been used to improve properties of two‐component polymers. In this work, a semicontinuous emulsion process varying feed composition along the reaction is used to produce copolymer chains of different composition as conversion proceeds. Polymer composition and evidence of branching…
Polymer crystallization and propertiesAdvanced Polymer Synthesis and CharacterizationThermal and Kinetic Analysis
In‐Hwan Choi、Peter Y. Yu、Paul Tangney 等 4 位作者2006-12-27physica status solidi (b)
Abstract We have investigated theoretically and experimentally the pressure dependent structural and vibrational properties of single‐walled carbon nanotubes (SWNT). Bundles of SWNTs are studied inside a diamond anvil high pressure cell with micro‐Raman scattering. The tube diameter and size distribution are determine…
Carbon Nanotubes in CompositesDiamond and Carbon-based Materials ResearchForce Microscopy Techniques and Applications
Benjamaad Chatreenuwat、Manit Nithitanakul、Brian P. Grady2006-12-27Journal of Applied Polymer Science
Abstract A high‐density polyethylene with grafted maleic anhydride units has been investigated as a compatibilizer for high‐density polyethylene with polyamide 6. The material acts as an effective compatibilizer, causing a marked reduction in dispersed phase size as well as an increase in tensile strength and toughnes…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
Jiufang Duan、Jie Du、Yubin Zheng2006-12-27Journal of Applied Polymer Science
Abstract The effect of certain preparative variables, such as the composition of the feeds, the reaction time, catalyst concentration, degrees Centigrade (°C), and the reaction temperature on the properties of prepared polymer poly(lactic acid–glycolic acid‐4‐hydroxyproline) (PLGA‐Hpr), was investigated via direct mel…
Bone Tissue Engineering MaterialsAdvanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and properties
Mukku Shrinivas Rao、Kyaw Aye Nyein、Trang Sĩ Trung 等 4 位作者2006-12-27Journal of Applied Polymer Science
Abstract Chitin and chitosan of high quality were produced from squilla, a by‐catch of Indian Ocean fisheries, by demineralization, deproteination, and deacetylation. Optimum conditions for the production of chitin and chitosan were determined. The quality of chitin was assessed from its ash and protein content. Ash c…
Proteins in Food SystemsNanocomposite Films for Food PackagingProtein Hydrolysis and Bioactive Peptides
Daisuke Ishii、Yuki Kanazawa、Daisuke Tatsumi 等 4 位作者2006-12-27Journal of Applied Polymer Science
Abstract Effect of solvent exchange, i.e., the sequential immersion in water, acetone, and DMAc on the pore structure of cellulose and its dissolution behavior in lithium chloride/ N , N ‐dimethylacetamide (LiCl/DMAc) was investigated by using size exclusion liquid chromatography (SEC), dynamic light scattering (DLS),…
Advanced Cellulose Research StudiesLignin and Wood ChemistryElectromagnetic wave absorption materials