Effect of n-hexanol and n-hexylamine on the micellar solutions of pluronic F127 and P123 in water and 1M NaCl

B. Bharatiya*, G. Ghosh, V. K. Aswal, P. Bahadur

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

6 Citations (Scopus)

Abstract

The micelles from aqueous solution of two ethylene oxide(EO)-propylene oxide(PO) triblock copolymers, Pluronic P123 [(EO)20(PO)69(EO)20] and F127 [(EO)99(PO)69(EO)99], with identical PPO but different PEO in the presence of n-hexylamine and n-hexanol were examined using viscosity and dynamic light scattering (DLS) measurements. Micelles of more hydrophilic F127 did not show any noticeable growth or transition in the presence of n-hexylamine in water or in 1M NaCl solutions, while those of P123 showed signi.cant growth after a certain hexylamine concentration, with the effect being more pronounced in salt solutions. Similar behavior was observed in the presence of n-hexanol, which showed greater effect in comparison to n-hexylamine. The effect of n-hexylamine on F127 has been examined using small-angle neutron scattering (SANS) method also, which showed good agreement with viscosity and DLS results. n-Hexylamine and n-hexanol affect the micellar environment in different ways as per their individual solubility rankings.

Original languageEnglish
Pages (from-to)660-667
Number of pages8
JournalJournal of Dispersion Science and Technology
Volume31
Issue number5
DOIs
Publication statusPublished - 1 May 2010

Keywords

  • Micelles
  • Scattering
  • Solubility

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