Advanced Materials for Engineering Applications – Page 62

Nanophase Separated Anionic Amphiphilic Model Polymer Conetworks Based on Methacrylic acid

Kali G., Georgiou T.K., Iván B., Patrickios C.S., Loizou E., Thomann Y., Tiller J., Hungaryan Academy of Sciences, HU

Two series of model amphiphilic polymer conetworks were synthesized by group transfer polymerization (GTP). The first one was composed of the hydrophobic methyl methacrylate (MMA) and the hydrophilic methacrylic acid (MAA), and the second one [...]

Morphology and Phase Transitions in Styrene-Butadiene-Styrene Triblock Copolymer Grafted with Polyhedral Oligomeric Silsesquioxanes

Drazkowski D.B., Lee A., Michigan State University, US

Two symmetric triblock copolymers of polystyrene-butadiene-polystyrene (SBS) with different styrene content were grafted with varying amounts of polyhedral oligomeric silsesquioxane (POSS) molecules with either isobutyl or phenyl moiety. The POSS octamers, R’R7Si8O12 were designed to [...]

Parylene Polymers for Nanotechnology Applications

Kumar R., Greiner A., Specialty Coating Systems, US

During the past several years, Parylene polymers have been considered an integral part of micro devices by many biomedical engineering researchers as devices are made of Parylene through MEMs technology. In advancing Parylenes applications further [...]

Technological prospecting on Area of Nanotechnology with emphasis in nanostructured polymers

Borschiver S., Jose Guimaraes M., Nahum e Marietta Lissker, BR

The areas of application for nanotechnology extend to practically all industrial and service sectors. Currently there exist initiatives for investment in nanotechnology in both developed countries and those in the process of development. The present [...]

New Characterisation Techniques for the Study of Nanoscale Polymeric Systems in Two- & Three-Dimensions

Stokes D.J., Reyntjens S., Jiao C., Hayles M.F., Hubert D.H.W., FEI Company, NL

Activity in the development of polymer-based materials, composites and devices is more intense than ever. At the same time, techniques and methods for their characterisation have become more powerful, giving new insights into the spatial [...]

pH-responsive self assemblies for “smart surface coatings”

Baquey G., Sakai K., Perrier S., Biggs S., Chamelic Ltd, UK

Over the last few years, adsorption of polyelectrolytes at solid/liquid interfaces has gained in popularity due to their potential applications for drug delivery, for the preparation of nanosized materials and for the fabrication of smart [...]

Polymer Nanotechnology

Synthesis and Magnetic Properties of Polyaniline-Based Magnetic Nanocomposites for EMI Applications

Renteria B., Singhal R., Calderon E., Tomar M.S., Banerjee J., University of Puerto Rico, PR

we have synthesized composite of polyaniline (PANI) with manganese-zinc-ferrite (MnXZn1-XFe2O4) nanoparticles. PANI was synthesized by polymerization of aniline in the presence of ammonium peroxydisulfate and HCl. Electrical conductivity of bare PANI pellets averaged 0.8044 (Ω·m)-1. [...]

Coupling of CdSe/ZnS quantum dots: among themselves and with matrices

Liu K., Tsu R., University of North Carolina at Charlotte, US

We investigate the photoluminescence (PL) properties of CdSe/ZnS QDs deposited on Si, fused silica, Au film, and silica nanospheres. The red shifts of the PL peak were observed with increasing density of QDs on various [...]

Processing and Characterization of Epon 862 reinforced with functionalized MWCNT’s

Theodore M., Hosur M.V., Thomas J., Jeelani S., Tusekgee University, US

In the current research work, functionalization of pristine MWCNTs was performed by oxidation in acid solution (MWCNT-COOH), direct-fluorination (MWCNT-F), and amino-functionalization (MWCNT-NH2). An epoxy-nanocomposite material was developed through the use of functionalized Multi-wall Carbon Nanotubes [...]