Interação tensoativo/hidrótropo em sistemas aquosos, utilizando ressonância magnética nuclear de 1H e 13C

Translated title of the contribution: Surfactant/hydrotrope interaction in aqueous systems by nuclear magnetic resonance oxide, hydrotropy, nuclear magnetic resonance

Claudia R.E. Mansur, Elizabete F. Lucas, Carlos N. Pacheco, Gaspar González

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

In this work, it was studied the behavior of the nonionic surfactant aqueous solutions, containing or not a hydrotropic agent, by resonance magnetic nuclear (NMR). We have studied monofunctional diblock copolymers of poly(propylene oxide-ethylene oxide) (R-PPO-PEO-OH, where R length is linear C4) as nonionic surfactant and sodium p-toluenesulfonate (NaPTS) as hydrotropic agent. The critical micelle concentration (CMC) of the aqueous copolymer solution was obtained from 1H-NMR. The preliminary study of the interaction between the copolymer, under the unimer and micelle forms, and the hydrotrope, in aqueous solutions, was evaluated by 1H-NMR and 13C-NMR.

Translated title of the contributionSurfactant/hydrotrope interaction in aqueous systems by nuclear magnetic resonance oxide, hydrotropy, nuclear magnetic resonance
Original languagePortuguese
Pages (from-to)47-54
Number of pages8
JournalQuimica Nova
Volume24
Issue number1
StatePublished - Jan 1 2001

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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