A Comparative Study on Electrokinetic Properties of Boronic Acid Derivative Polymers in Aqueous and Nonaqueous Media


Gumus O. Y. , Ozkan S., ÜNAL H. İ.

MACROMOLECULAR CHEMISTRY AND PHYSICS, vol.217, no.12, pp.1411-1421, 2016 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 217 Issue: 12
  • Publication Date: 2016
  • Doi Number: 10.1002/macp.201500524
  • Journal Name: MACROMOLECULAR CHEMISTRY AND PHYSICS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.1411-1421
  • Keywords: colloids, conducting polymers, poly(3-aminophenylboronic acid), poly(thiophene-3-boronic acid), zeta potential, POLY(ANILINEBORONIC ACID), ELECTRORHEOLOGICAL PROPERTIES, HORSERADISH-PEROXIDASE, CARBON NANOTUBES, FACILE SYNTHESIS, NANOPARTICLES, COMPOSITES, GLUCOSE, POLYMERIZATION, GLYCOPEPTIDES

Abstract

Semiconducting poly(3-aminophenylboronic acid) (PABA) and poly(thiophene-3-boronic acid) (PTBA) nanoparticles are synthesized using KIO3 and (NH4)(2)S2O8 as initiators, respectively; and structural, morphological, and surface characterizations are carried out by various well-known techniques. Electrokinetic properties of PABA and PTBA dispersions are determined by zeta (zeta)-potential measurements in aqueous medium by taking the effects of pH, various electrolytes, surfactants, and temperature into account. Colloidally stable range of +30 mV <= zeta <= -30 mV is obtained in the presence of NaCl and Na2SO4 for PABA and PTBA, respectively. Addition of anionic surfactant, sodium dodecyl sulfate, to PABA and PTBA dispersions shifts the zeta-potentials to more negative values and enhances their colloidal stabilities. zeta-Potential values of PABA increase with rising temperature, whereas almost no change is observed for PTBA at elevated temperatures up to 65 degrees C. zeta-Potentials of PABA and PTBA dispersions in silicone oil with the absence and presence of Triton X-100 are also determined to be high.