EFFECTS OF NH4Cl ON THE INTERACTION BETWEEN POLY(ETHYLENE OXIDE) AND IONIC SURFACTANTS IN AQUEOUS SOLUTIONS

Jing Li; Hua-zhen Li; Hai-yang Yang; Ping-ping Zhu; Ping-sheng He

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EFFECTS OF NH4Cl ON THE INTERACTION BETWEEN POLY(ETHYLENE OXIDE) AND IONIC SURFACTANTS IN AQUEOUS SOLUTIONS

Papers | Updated：2021-06-21

- EFFECTS OF NH4Cl ON THE INTERACTION BETWEEN POLY(ETHYLENE OXIDE) AND IONIC SURFACTANTS IN AQUEOUS SOLUTIONS
- Vol. 26, Issue 1, Pages: 31-37(2008)
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- Published：20 January 2008
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Jing Li, Hua-zhen Li, Hai-yang Yang, et al. EFFECTS OF NH4Cl ON THE INTERACTION BETWEEN POLY(ETHYLENE OXIDE) AND IONIC SURFACTANTS IN AQUEOUS SOLUTIONS[J]. 2008, 26(1): 31-37.
DOI：

Jing Li, Hua-zhen Li, Hai-yang Yang, et al. EFFECTS OF NH4Cl ON THE INTERACTION BETWEEN POLY(ETHYLENE OXIDE) AND IONIC SURFACTANTS IN AQUEOUS SOLUTIONS[J]. 2008, 26(1): 31-37. DOI：

摘要

The interaction of poly(ethylene oxide) (PEO) with the ionic surfactants

sodium dodecylsulfate (SDS) and cetyltrimethylammonium chloride (CTAC) respectively

in aqueous solutions containing a certain concentration of NH4Cl

is studied by the viscosity measurement. It has been found that the ion-dipole interaction between PEO and ionic surfactants is changed considerably by the organic salt. For anionic surfactant of SDS

the addition of NH4Cl into solution strengthens the interaction between PEO and the headgroup of SDS. On the other hand

for cationic surfactant of CTAC

the interaction between PEO and the headgroup of CTAC is screened significantly by NH4Cl dissolved in solution. These findings may potentially be attributed to the negative property of the oxygen group of the PEO chain. In the presence of NH4Cl

the cationic ions of the organic salt bind to the oxygen group of the PEO chain so that PEO can be referred to as a pseudo-polyelectrolyte in solution.

Abstract

The interaction of poly(ethylene oxide) (PEO) with the ionic surfactants

sodium dodecylsulfate (SDS) and cetyltrimethylammonium chloride (CTAC) respectively

in aqueous solutions containing a certain concentration of NH4Cl

is studied by the viscosity measurement. It has been found that the ion-dipole interaction between PEO and ionic surfactants is changed considerably by the organic salt. For anionic surfactant of SDS

the addition of NH4Cl into solution strengthens the interaction between PEO and the headgroup of SDS. On the other hand

for cationic surfactant of CTAC

the cationic ions of the organic salt bind to the oxygen group of the PEO chain so that PEO can be referred to as a pseudo-polyelectrolyte in solution.

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