Polymer Nanotechnology – TechConnect Briefs

Synthesis and Application of nano-size polymer colloids at The Dow Chemical Company

Tucker C.J., The Dow Chemical Company, US

Over the last 50+ years The Dow Chemical Company has sponsored numerous research programs involving the preparation and use of nano-size colloidal systems. The nano-colloids used range from soft (liquid microemulsions) to solid (polymeric) materials [...]

ZnO:Polydiacetylene Films as Chromatic Sensors

Patlolla A., Zunino III J.L., Schmidt D.P., Iqbal Z., Skelton D.R., U.S. Army, US

Films of the conjugated polydiacetylenes (PDAs) can function as chromatic temperature, chemical and stress sensors, and can be prepared by spin-coating from monomer solutions followed by polymerization. The polymer backbone of PDAs is comprised of [...]

Directed assembly of magnetic nanoparticles in polymers: the formation of anisotropic plastic films containing aligned nanowires

Fragouli D., Buonsanti R., Villafiorita Monteleone F., Bertoni G., Sangregorio C., Torre B., Cingolani R., Athanassiou A., Italian Institute of Technology, IT

We present a study of the dynamical formation of spatially localized arrays of 1-D aligned magnetic nanowires in plastic films. We demonstrate a straightforward technique, easily reproducible, where by specifically varying experimental conditions we can [...]

Soft plasma polymer coatings based on atomic polymerization

Cech V., Trivedi R., Lichovnikova S., Hoferek L., Brno University of Technology, CZ

Plasma polymerization is a thin film-forming process based on atomic polymerization. Plasma polymer films deposited from organosilicon monomers constitute a special class of dielectric coatings with controllable organic/inorganic character and cross-linking that enable optimization of [...]

Structural Control of Porous Polymeric Materials through Magnetic Gelation

Furlan M., Lattuada M., Morbidelli M., ETH Zürich, CH

A novel procedure, called magnetic gelatio, is introduced to prepare porous polymeric materials with controlled anisotropic structure. The materials are obtained by destabilizing aqueous dipsersions of magnetic polymer nanoparticles in the presence of magnetic fields, [...]

Polymer nanocomposites: an advanced material for functional fibers

Joshi M., Indian Institute of Technology, IN

The paper illustrates our development in the area of producing fibers from polymer nanocomposites both through melt and solution intercalation route. The polymers studied are Polypropylene, Polyethylene Polyurethane and Nylon. The naofillers used range from [...]

Polymer nanoparticles as nanoformulation agents

Pham H., Li F., Goh J.B., Dinglasan J., Anderson D., Vive Nano, Inc., CA

An approach to produce polymer nanoparticles with tailored characteristics to accommodate different nanoformulation applications is presented. Polymer nanoparticles are made from the collapse of polyelectrolytes in the presence of counterions and/or different solvents. The size, [...]

Preparation of nickel doped multi-functional micro-patternable polydimethylsiloxane nanocomposite polymer with characterization of its magnetic, electrical and mechanical properties for soft MEMS/Lab on a chip applications

Khosla A., Korand J.L., Haiducu M., Gray B.L., Leznoff D.B., Parameswaran M., Simon Fraser University, CA

We present the preparation and characterization of a novel polydimethylsiloxane (PDMS) multifunctional nanocomposite with electric and magnetic properties. The composite is fabricated by ultrasonic agitation of nickel nanoparticles in the PDMS matrix. The prepared nanocomposite [...]

Environmental Friendly Synthesis of Polypyrrole within polymeric Nanotemplates-mechanism of polypyrrole synthesis

Li X., Chan A., Groves M., Malardier-Jugroot C., Royal Military College of Canada, CA

This paper describes an innovative way to synthesize polypyrrole using self-assembly nano-templates poly (isobutylene-alt-maleic anhydride) (IMA) or poly (styrene-alt-maleic anhydride) (SMA). Understanding the details of the novel synthesis in great details would provide us profound [...]

Directing cell migration by electrospun fibers

Liu Y., State University of New York at Stony Brook, US

We would like to submit the abstract “directing cell migration by electrospun fiber” for the presentation in Nanotech conference 2010. We investigate the influence of substrate on cell migration. We show that it is possible [...]

Design and multiobjective optimization of a novel reactive extrusion process for the production of nanostructured PA12/ PDMS blends

Pla F., Rached R., Hoppe S., Fonteix C., Nancy University, FR

The important demand of innovative materials implies the development of new processes and concepts for their design and optimization. This work deals with the manufacture, by reactive extrusion, of Polyamide 12 (PA12)/ Polydimethylsiloxane (PDMS) nanostructured [...]

Effect of Size on Properties of Nano-Structured Polymers –Transition from Macroscaling to Nanoscaling

Lem K.W., Haw J.R., Lee D.S., Brumlik C., Sund S., Curran S., Smith P., Brauer S., Schmidt D., Konkuk University, KR

The growth in investment on the effect of size in nanoscience and nanotechnology has been astounding. Among the $12.4B spent in 2006 worldwide Nanotechnology research funding (Lux Research, 2007), at least 50%, that is >$6B, [...]

Preparation and characterization of Sulfonated High Impact Polystyrene (SHIPS) ion exchange nanofiber by electrospinning

Hwang T.S., Choi E.J., Kwak N.S., Chungnam National University, KR

The study of nanofibers has been a subject of intensive research because of their unique properties and widespread applications in many areas. Among the various methods used to prepare nanofibers, electrospinning has been very attractive [...]

Mechanical and Moisture Resistance Performance of Silver Nanoparticle Reinforced Fish Skin Gelatin Films

Harding H., Ludwick A., Samuel T., Young S., Aglan H., Tuskegee University, US

Films from the biodegradable polymer gelatin have been studied for biomedical applications not only because of the film forming properties of gelatin, but also because of the availability and economical advantages of gelatin. In this [...]

Experiments to Investigate Electromagnetic Shielding Performance of Polyaniline-Coated Thin Films

Kim B.R., Lee H.K., Korea Advanced Institute of Science and Technology (KAIST), KR

Many studies on electromagnetic wave shielding/ absorbing materials have been performed. In particular, studies of novel materials have been carried out as an alternative to conventional shielding materials such as metallic materials. Recently, the investigation [...]

Fabrication of poly(alizarin red)-carbon nanofibers composite film and its application as nitric oxide microsensor

Zheng D.Y., Hu C.G., Hu S.S., Hu C.G., Hu S.S., Wuhan University, CN

In this work, a poly(alizarin red) (PAR)-carbon nanofiber (CNFs) composite film was fabricated via a well-controlled in situ electro-polymerization method. This composite film exhibited good sensing and catalytic ability to the electrochemical oxidation of nitric [...]

Characterization of Carbon Nanotube-reinforced Polyethylene Nanocomposite Produced by Cryogenic Ball-milling Process

Terife G., Narh K.A., New Jersey Institute of Technology, US

The morphology of polymer nanocomposite, and the degree of dispersion of the MWCNTs were studied using SEM and light transmission microscopy. Both MWCNT ropes and aggregates were observed; also wetting of the nanotubes by the [...]

Electronic Properties and Transitions States involved in the Pyrrole Oligomerization

Cuán A., Cortés-Romero C.M., Ramírez-Silva M.T., Romero-Romo M.A., Palomar-Pardavé M.E., Metropolitan Autonomous University- Azcapotzalco, MX

The electrochemical pyrrole polymerization mechanism at initial stages is theoretically studied through sequential monomer units coupling to obtain 2 to 9 oligomer formation. The transitions states involved in the initial stages give the sequential growing [...]

Papers: