Multi-lamellar vesicle formation in a long-chain nonionic surfactant: C16E4/D2O system

Luigi Gentile; Kell Mortensen; Cesare Oliviero Rossi; Ulf Olsson; Giuseppe A. Ranieri

doi:10.1016/j.jcis.2011.06.053

Multi-lamellar vesicle formation in a long-chain nonionic surfactant: C16E4/D2O system

Luigi Gentile, Kell Mortensen, Cesare Oliviero Rossi, Ulf Olsson, Giuseppe A. Ranieri

Physical Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The temperature dependent theological and structural behavior of a long-chain C16E4 (tetraethylene glycol monohexadecyl ether) surfactant in D2O has been studied within the regime of low shear range. In the absence of shear flow, the system forms a lamellar liquid crystalline phase at relatively high temperatures. The present paper reports on the shear-induced multi-lamellar vesicle (MLV) formation in C16E4/D2O at 40 wt.% of surfactant in the temperature range of 40-55 degrees C. The transition from planar lamellar structure to multi-lamellar vesicles has been investigated by time-resolved experiments combining rheology and nuclear magnetic resonance (rheo-NMR), rheo small-angle neutron scattering (rheo-SANS) and rheometry. The typical transient viscosity behavior of MLV formation has been discovered at low shear rate value of 0.5 s(-1). (C) 2011 Elsevier Inc. All rights reserved.

Original language	English
Pages (from-to)	1-4
Journal	Journal of Colloid and Interface Science
Volume	362
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2011.06.053
Publication status	Published - 2011

Subject classification (UKÄ)

Physical Chemistry

Free keywords

CnEm
Rheology
Rheo-SANS
Rheo-NMR
MLV formation

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10.1016/j.jcis.2011.06.053

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title = "Multi-lamellar vesicle formation in a long-chain nonionic surfactant: C16E4/D2O system",

abstract = "The temperature dependent theological and structural behavior of a long-chain C16E4 (tetraethylene glycol monohexadecyl ether) surfactant in D2O has been studied within the regime of low shear range. In the absence of shear flow, the system forms a lamellar liquid crystalline phase at relatively high temperatures. The present paper reports on the shear-induced multi-lamellar vesicle (MLV) formation in C16E4/D2O at 40 wt.% of surfactant in the temperature range of 40-55 degrees C. The transition from planar lamellar structure to multi-lamellar vesicles has been investigated by time-resolved experiments combining rheology and nuclear magnetic resonance (rheo-NMR), rheo small-angle neutron scattering (rheo-SANS) and rheometry. The typical transient viscosity behavior of MLV formation has been discovered at low shear rate value of 0.5 s(-1). (C) 2011 Elsevier Inc. All rights reserved.",

keywords = "CnEm, Rheology, Rheo-SANS, Rheo-NMR, MLV formation",

author = "Luigi Gentile and Kell Mortensen and Rossi, {Cesare Oliviero} and Ulf Olsson and Ranieri, {Giuseppe A.}",

year = "2011",

doi = "10.1016/j.jcis.2011.06.053",

language = "English",

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journal = "Journal of Colloid and Interface Science",

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T1 - Multi-lamellar vesicle formation in a long-chain nonionic surfactant: C16E4/D2O system

AU - Gentile, Luigi

AU - Mortensen, Kell

AU - Rossi, Cesare Oliviero

AU - Olsson, Ulf

AU - Ranieri, Giuseppe A.

PY - 2011

Y1 - 2011

N2 - The temperature dependent theological and structural behavior of a long-chain C16E4 (tetraethylene glycol monohexadecyl ether) surfactant in D2O has been studied within the regime of low shear range. In the absence of shear flow, the system forms a lamellar liquid crystalline phase at relatively high temperatures. The present paper reports on the shear-induced multi-lamellar vesicle (MLV) formation in C16E4/D2O at 40 wt.% of surfactant in the temperature range of 40-55 degrees C. The transition from planar lamellar structure to multi-lamellar vesicles has been investigated by time-resolved experiments combining rheology and nuclear magnetic resonance (rheo-NMR), rheo small-angle neutron scattering (rheo-SANS) and rheometry. The typical transient viscosity behavior of MLV formation has been discovered at low shear rate value of 0.5 s(-1). (C) 2011 Elsevier Inc. All rights reserved.

AB - The temperature dependent theological and structural behavior of a long-chain C16E4 (tetraethylene glycol monohexadecyl ether) surfactant in D2O has been studied within the regime of low shear range. In the absence of shear flow, the system forms a lamellar liquid crystalline phase at relatively high temperatures. The present paper reports on the shear-induced multi-lamellar vesicle (MLV) formation in C16E4/D2O at 40 wt.% of surfactant in the temperature range of 40-55 degrees C. The transition from planar lamellar structure to multi-lamellar vesicles has been investigated by time-resolved experiments combining rheology and nuclear magnetic resonance (rheo-NMR), rheo small-angle neutron scattering (rheo-SANS) and rheometry. The typical transient viscosity behavior of MLV formation has been discovered at low shear rate value of 0.5 s(-1). (C) 2011 Elsevier Inc. All rights reserved.

KW - CnEm

KW - Rheology

KW - Rheo-SANS

KW - Rheo-NMR

KW - MLV formation

U2 - 10.1016/j.jcis.2011.06.053

DO - 10.1016/j.jcis.2011.06.053

M3 - Article

SN - 1095-7103

VL - 362

SP - 1

EP - 4

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

IS - 1

ER -

Multi-lamellar vesicle formation in a long-chain nonionic surfactant: C16E4/D2O system

Abstract

Subject classification (UKÄ)

Free keywords

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