Self-assembly directed synthesis of poly(ortho-toluidine)-metal(gold and palladium) composite nanospheres.

Self-assembly directed synthesis of poly(ortho-toluidine)-metal(gold and palladium) composite nanospheres. Research Abstract Details 

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Self-assembly directed synthesis of poly(ortho-toluidine)-metal(gold and palladium) composite nanospheres. Abstract Text:

Kakarla Raghava Reddy,Kwang-Pill Lee,Anantha Iyenger Gopalan,Kakarla Raghava Reddy,Kwang-Pill Lee,Anantha Iyenger Gopalan,

Poly(ortho-toluidine) (POT)-gold (Au) and palladium (Pd) composite nanospheres were successfully synthesized by the reaction of o-toluidine with the corresponding metal (Au or Pd) colloidal solution through self-assembly process in the presence of dodecylbenzenesulfonic acid (DBSA), which acts as both a dopant and surfactant, and ammonium peroxydisulfate as an oxidizing agent. The composites (POT-DBSA/Au or Pd) were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, UV-Visible (UV-Vis) spectroscopy, and electrical conductivity measurements. TEM images of the nanocomposites reveal that metal (Au or Pd) nanoparticles were well dispersed on POT spheres. TGA and XRD results show that the composites exhibit high thermal stability and are more crystalline compared with pristine POT. It was found that the electrical conductivity of the POT-DBSA/Au or Pd composites is 2 orders of magnitude higher than that of pristine polymer. Also, the POT-DBSA/Pd composite exhibits magnetic property. The formation mechanism of the POT-DBSA/Au or Pd composite nanosphere is discussed.

Self-assembly directed synthesis of poly(ortho-toluidine)-metal(gold and palladium) composite nanospheres. Publishing Authors By Initials

KR Reddy,KP Lee,AI Gopalan,KR Reddy,KP Lee,AI Gopalan,

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Self-assembly directed synthesis of poly(ortho-toluidine)-metal(gold and palladium) composite nanospheres. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of nanoscience and nanotechnology

VOLUME: 7

Page Numbers: 3117-25

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ISSN: 1533-4880

DAY: 16

MONTH: Sep

YEAR: 2007

Self-assembly directed synthesis of poly(ortho-toluidine)-metal(gold and palladium) composite nanospheres. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Self-assembly directed synthesis of poly(ortho-toluidine)-metal(gold and palladium) composite nanospheres.

AFFILIATION: Department of Chemistry Graduate School, Kyungpook National University, Daegu 702-701, South Korea.

Country: United States

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MEDLINETA: J Nanosci Nanotechnol

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