TechConnect Proceedings Papers
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Nanoparticles Prepared by Self-assembly of Chitosan and Poly-gamma-glutamic Acid
The technique of self-assembly of polyelectrolytes opens many new opportunities to achieve idea models as delivery system. The oppositely charged biopolymers can self-assemble by the attractive interaction between the functional groups. The electrostatic interactions between [...]
Photogeneration Kinetics of Ag Nanoparticles in Light Sensitive Polymer Films
Ag nanoparticles were generated within light-sensitive films composed of poly(ether ether)ketone, SPEEK and poly(vinyl alcohol), PVA. The benzophenone (BP) groups of SPEEK act as sensitizers; excited states of these functions abstract H-atoms from PVA forming [...]
Novel Supramolecules Based on Architecturally Variant alpha-Cyclodextrin Polyrotaxanes and Nanorod-Like alpha-Cyclodextrin Self-Assembly
Self-assembly (SA-ICs) of architecturally variant alpha-cyclodextrin (alpha-CD) inclusion complexes (ICs) formed by host-guest reaction with four polymeric guest having different molecular architectures (star-shaped, hyperbranched, diblocked, and linear polymer) and nanorod-like self-assembly (SA-CD) of alpha-CD could [...]
Morphology Studies And Potential Applications Of Poly(N,N-Dimethylacrylamide)-l-Polyisobutylene Amphiphilic Polymer Conetworks
Mezey P., Domján A., Iván B., Thomann R., Mülhaupt R., Chemical Research Center of the Hungarian Academy of Sciences, HU
Poly(N,N-dimethylacrylamide)-l-polyisobutylene (PDMAAm-l-PIB) amphiphilic conetworks were synthesized from two incompatible polymers, i.e. hydrophilic PDMAAm and strongly hydrophobic PIB in a wide range of composition (38-80 m/m % PIB). DSC and SAXS measurement results show that a [...]
Synthesis of fullerene nanotubes by liquid-liquid interfacial precipitation method in the system of C60-pyridine and isopropyl alcohol
Nanotubes composed of C60 molecules were prepared at ambient pressure and temperature by modified liquid-liquid interfacial precipitation method using pyridine for the solvent of C60 powder and isopropyl alcohol (IPA). Various parameters, such as ratio [...]
TEM and Raman Spectroscopy Analyses of Fullerene Nanowhiskers and Nanotubes
Miyazawa K., Ringor C., Nakamura K., Nakamura S., Tachibana M., Mashino T., Nakamura K., Nakamura S., National Institute for Materials Science, JP
Structure of the nanowhiskers and nanotubes composed of C60 molecules and C60 derivative molecules are examined by use of Raman spectroscopy and transmission electron microscopy (TEM). The C60 nanotubes (C60NTs) dried in air exhibited a [...]
Synthesis, Characterization and Electrical Conductivity of Metal/Metal ion Incorporated Fullerene Nanowhiskers
It is presumed that the polymerization of fullerene molecules as nanowhiskers or nanotubes will result enhancement in the conductivity of the fullerene molecule. Our earlier studies on conductivity of fullerene nanowhiskers shows, a whisker of [...]
Thermal conductivity enhancement of carbon nanotube composites
Simple models for the thermal conductivity enhancements of carbon nanotube (CNT) composites are presented as analytical functions of volume fraction, anisotropic thermal conductivities, aspect ratio, non-straightness, and interfacial thermal resistance of the CNTs. The model [...]
Properties of Paraffin Wax/Montmorillonite Nanocomposite Coatings
Results are reviewed from a study aimed at enhancing the performance of paraffin wax based materials for barrier coating applications. Nanocomposites prepared by ultrasonic processing from paraffin wax matrices and reinforced with organically modified montmorillonite [...]