Personal & Home Care, Food & Agriculture – Page 29

Synthesis and Characterization of Novel Polyimide/TiO2 Nanocomposite System for the Application of Organic Electronics

Ahn T., Yu Y.I., Hong S.K., Yi M-Y, Korea Research Institute of Chemical Technology, KR

Organic/inorganic nanocomposites have become an effective source of advanced materials as they usually exhibit unique properties that traditional composites and conventional materials do not have. They combine the advantages of the inorganic material (rigidity, high [...]

Physical Properties of Ferrite Nanocomposites Based On Nylon-66

Kim B.C., Kim M.H., Kim B.C., Kim M.H., Hanyang University, KR

The ferrite nanoparticles acted as a nucleating agent, leading to a small degree of supercooling. However, above a critical loading level (1 wt %), the nanoparticles in the polymer matrix might restrict the chain mobility [...]

Nanoparticles Prepared by Self-assembly of Chitosan and Poly-gamma-glutamic Acid

Bodnar M., Hajdu I., Filipcsei G., Hartmann J.F., Borbely J., University of Debrecen, HU

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

Korchev A.S., Foti K., Sartin M., Slaten B.L., Gale W., Mills G., Auburn University, US

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

Chung J.W., Yu B.-Y., Kwak S-Y, Seoul National University, KR

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

Ringor C., Miyazawa K., National Institute for Material Science, JP

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

Sathish M., Miyazawa K., Sasaki T., National Institute for Materials Science, Namiki, JP

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

Deng F., Zheng Q.-S., Tsinghua University, CN

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 [...]