Nanostructured conducting polymer composites — superparamagnetic particles in conducting polymers

Self-Assembly of Uniform Spherical Aggregates of Magnetic Nanoparticles through π-π Interactions

“…[6] By far the most active catalysts are several diphosphane-bridged Fe/Pd heterobimetallic complexes in which the reaction is thought to occur at the Pd center, while the Fe center is proposed to play an important supporting role. [4,7] Similar dehydrogenative pathways are presumably employed in the synthesis of oligomeric and polymeric diorganostannanes from tin dihydrides, [4] including reactions catalyzed by low-valent metallocene or Group VI hexacarbonyl complexes. [8] Allenylidene complexes of the [CpRu(PMe 3 ) 2 ] ion were prepared by the method of Selegue (details in Supporting Information).…”

“…[3±5] For example, the composite formed from magnetic nanoclusters and conducting oligomers may possess unique applications in such areas as electromagnetic interference shielding and electrochromic devices, as well as sensing and actuating technologies. [6,7] Self-assembly based on the spontaneous control of materials through noncovalent interactions (hydrogen bonding, [8,9] van der Waals forces, [10,11] and electrostatic forces [12,13] ) with no external intervention provides a powerful method for employing pre-programmed materials with the potential for multi-dimensional ordering for the creation of well-defined structure at a molecular level. Monolayer-functionalized nanoparticles that act as building blocks have been fabricated into ordered architectures for such approaches.…”

Toward open source nano: Arsenic removal and alternative models of technology transfer

“…In order to test the materials and to develop these properties, it is necessary to produce large amounts of identically sized and shaped particles of magnetite (i.e., they must be ''monodisperse''), generally having diameters from 10 to 25 nm. This gives them large and permanent magnetic dipole moments (Kryszewski & Jeszka, 1998).…”

Selective preparation of novel fluoroalkyl end-capped co-oligomeric nanocomposite-encapsulated magnetites and magnetite-adsorbing co-oligomeric nanoparticles

“…So far, numerous synthetic and natural polymers have been used to obtain stable colloidal dispersions of magnetic nanoparticles by coating and encapsulating the particles. [22][23][24][25][26][27][28][29][30][31] It is well known that fluorinated surfactants have excellent surface characteristics, including oleophobicity and hydrophobicity, neither of which can be achieved with corresponding nonfluorinated polymers. 32 Thus, it is of particular interest to develop new, tailored magnetic fluorinated polymer colloids that possess not only good dispersibility in various solvents but also the unique active surface characteristics imparted by fluorine.…”