CLOUD POINT IN NON-IONIC SURFACTANTS PROBED BY ELECTRICAL IMPEDANCE SPECTROSCOPY

被引：2

作者：

de Lima, Sandro Vagner ^{[1
]}

de Oliveira, Helinando Pequeno ^{[1
]}

机构：

[1] Univ Fed Vale Sao Francisco, Colegiado Posgrad Ciencia Mat, BR-48902300 Juazeiro, BA, Brazil

来源：

QUIMICA NOVA | 2010年 / 33卷 / 09期

关键词：

electrical impedance spectroscopy; cloud point; non-ionic surfactants; PROMETHAZINE HYDROCHLORIDE; DIELECTRIC-SPECTROSCOPY; AMPHIPHILIC DRUGS; ADDITIVES; EXTRACTION; POLYPYRROLE; ALCOHOL; WATER;

D O I：

10.1590/S0100-40422010000900020

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CLOUD POINT IN NON-IONIC SURFACTANTS PROBED BY ELECTRICAL IMPEDANCE SPECTROSCOPY. In this paper, we analyze the use of electrical impedance spectroscopy applied to determination of cloud point. The slope of admittance measured at 100 kHz is reduced to temperature above the critical value which characterizes the phase transition, in a strong indication that this process is activated during the clouding. Additionally to this study we explored the influence of parameters such as additives and temperature on the performance of phase separation of residues (silver nanoparticles) by cloud point extraction. The interaction with salt maximizes the separation of chemical residues in a progressively reduced temperature.

引用

页码：1928 / 1932

页数：5

共 50 条

[41] Effect of Protic Ionic Liquid and Surfactant Structure on Partitioning of Polyoxyethylene Non-ionic Surfactants [J].

Topolnicki, Inga L. ;

FitzGerald, Paul A. ;

Atkin, Rob ;

Warr, Gregory G. .

CHEMPHYSCHEM, 2014, 15 (12) :2485-2489

[42] Determination of Critical Micelle Concentration of Ionic and Non-Ionic Surfactants by Streaming Potential Measurements [J].

Chenyakin, Yuri ;

Chen, David Da Yong .

ELECTROPHORESIS, 2025,

[43] Effects of cloud point of non-ionic surfactant on deinking efficiency of ONP at high blending ratio of OMG [J].

Lee, Tai Ju ;

Seo, Jin Ho ;

Ryu, Jeong Yong .

Palpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry, 2015, 47 (06) :164-169

[44] Characterization of vesicles prepared with various non-ionic surfactants mixed with cholesterol [J].

Manosroi, A ;

Wongtrakul, P ;

Manosroi, J ;

Sakai, H ;

Sugawara, F ;

Yuasa, M ;

Abe, M .

COLLOIDS AND SURFACES B-BIOINTERFACES, 2003, 30 (1-2) :129-138

[45] Studies on the Conductivity of Mixed Reverse Micelles of Anionic and Non-Ionic Surfactants [J].

Liu Jin-Yan ;

Han Wai-Hui ;

Zhang Yan ;

Yao Chao-Huai .

ACTA PHYSICO-CHIMICA SINICA, 2010, 26 (06) :1552-1556

[46] Non-ionic surfactants from renewables amphiphilic ligands in biphasic reactions [J].

Fassbach, Thiemo A. ;

Sommer, Fridolin O. ;

Behr, Arno ;

Romanski, Steffen ;

Leinweber, Dirk ;

Vorholt, Andreas J. .

CATALYSIS SCIENCE & TECHNOLOGY, 2017, 7 (08) :1650-1653

[47] A Hofmeister series perspective on the mixed micellization of cationic and non-ionic surfactants [J].

Krauss, Irene Russo ;

Cavasso, Domenico ;

Ciccarelli, Donato ;

Heenan, Richard K. ;

Ortona, Ornella ;

D'Errico, Gerardino ;

Paduano, Luigi .

JOURNAL OF MOLECULAR LIQUIDS, 2021, 335

[48] Development and application of kinetic models for the primary biodegradation of non-ionic surfactants [J].

Jurado, E. ;

Fernandez-Serrano, M. ;

Camacho, F. ;

Nunez Olea, J. ;

Lechuga, M. ;

Luzon, G. .

CHEMICAL ENGINEERING JOURNAL, 2009, 150 (2-3) :440-446

[49] Evolution of acute toxicity of non-ionic surfactants over the biodegradation process [J].

Jurado, E. ;

Fernandez-Serrano, F. ;

Nunez, J. ;

Lechuga, M. ;

Luzon, G. .

ENVIRONMENTAL TOXICOLOGY II, 2008, 110 :101-107

[50] The Evolution of the Fed Batch Ethoxylation Reactors to Produce the Non-Ionic Surfactants [J].

Di Serio, Martino ;

Russo, Vincenzo ;

Santacesaria, Elio ;

Tesser, Riccardo .

FRONTIERS IN CHEMICAL ENGINEERING, 2021, 3

← 1 2 3 4 5 →