Interaction Forces and Zeta Potentials of Cationic Polyelectrolyte Coated Silica Surfaces in Water and in Ethanol:  Effects of Chain Length and Concentration of Perfluorinated Anionic Surfactants on Their Binding to the Surface

Langmuir ◽  
2001 ◽  
Vol 17 (20) ◽  
pp. 6220-6227 ◽  
Author(s):  
Cathy E. McNamee ◽  
Mutsuo Matsumoto ◽  
Patrick G. Hartley ◽  
Paul Mulvaney ◽  
Yoshinobu Tsujii ◽  
...  
Keyword(s):  
Chain Length ◽  
Anionic Surfactants ◽  
Cationic Polyelectrolyte ◽  
Interaction Forces ◽  
Silica Surfaces ◽  
Zeta Potentials

scholarly journals Interaction Forces between Hydrophilic or Hydrophobized Silica Surfaces in Non-aqueous Media Studied by AFM

2011 ◽  
Vol 48 (5) ◽  
pp. 296-302 ◽  
Author(s):  
Teppei Yakubo ◽  
Tetsuya Nakabeppu ◽  
Tomonori Fukasawa ◽  
Hiroyuki Shinto
Keyword(s):  
Aqueous Media ◽  
Interaction Forces ◽  
Silica Surfaces ◽  
Hydrophobized Silica

scholarly journals In vitro Analysis of the Effect of Alkyl-Chain Length of Anionic Surfactants on the Skin by Using a Reconstructed Human Epidermal Model

2014 ◽  
Vol 63 (10) ◽  
pp. 995-1004 ◽  
Author(s):  
Fumiko Yamaguchi ◽  
Shin-ichi Watanabe ◽  
Fusae Harada ◽  
Miyuki Miyake ◽  
Masaki Yoshida ◽  
...  
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Anionic Surfactants ◽  
Alkyl Chain Length ◽  
Vitro Analysis ◽  
In Vitro Analysis

Substantivity of Various Anionic Surfactants Applied to Wool

1992 ◽  
Vol 62 (3) ◽  
pp. 140-143 ◽  
Author(s):  
L. A. Holt ◽  
J. S. Kelson ◽  
R. N. Reddie
Keyword(s):  
Nonionic Surfactant ◽  
Chain Length ◽  
Alkyl Chain ◽  
Anionic Surfactants ◽  
Alkyl Chain Length ◽  
Set Up ◽  
Ph Range

Wool samples containing various anionic surfactants (alkylbenzene sulphonates, primary and secondary alkane sulphonates, and an olefin sulphonate) lose some of the surfactant to the treatment liquor when subjected to typical dyeing conditions. At the boil, equilibrium is set up within 15 minutes between the concentration of surfactant in the liquor and that on the fiber. The extent of extraction is influenced by the alkyl chain length of the surfactant, the pH of the liquor, and the bath volume. For many surfactants, less than 5% is extracted at a 20:1 liquor/wool ratio in the pH range 5–6. The presence of nonionic surfactant in the treatment liquors results in slightly higher levels of extraction. Exhaustion of anionic surfactants onto wool gives distributions of surfactant between the wool and liquor similar to those obtained when treated wools are extracted under the same conditions of temperature, pH, and liquor/wool ratio.

Interaction of a new surface sensitive probe compound with anionic surfactants of varying hydrophobic chain length

2011 ◽  
Vol 364 (2) ◽  
pp. 395-399 ◽  
Author(s):  
Arnab Maity ◽  
Prasun Ghosh ◽  
Tarasankar Das ◽  
Jyotirmayee Dash ◽  
Pradipta Purkayastha
Keyword(s):  
Chain Length ◽  
Anionic Surfactants ◽  
Hydrophobic Chain

scholarly journals Particle Deposition to Silica Surfaces Functionalized with Cationic Polyelectrolytes

2021 ◽  
Vol 5 (2) ◽  
pp. 26
Author(s):  
Dominik Kosior ◽  
Plinio Maroni ◽  
Michal Borkovec
Keyword(s):  
Particle Deposition ◽  
Deposition Process ◽  
Cationic Polyelectrolyte ◽  
Ex Situ ◽  
Force Microscopy ◽  
Optical Reflectivity ◽  
Silica Surfaces ◽  
Atomic Force ◽  
Positively Charged

Positively charged water-solid interfaces are prepared by adsorption of a cationic polyelectrolyte poly(diallyldimethylammonium chloride) (PDADMAC) from aqueous solutions to planar silica substrates. These substrates are characterized by atomic force microscopy (AFM), optical reflectivity, and streaming current measurements. By tuning the amount of adsorbed polyelectrolyte, the surface charge of the substrate can be systematically varied. These substrates are further used to study deposition of sulfate latex nanoparticles, which is also accomplished by optical reflectivity. This deposition process is found to be consistent with an extension of the random sequential adsorption (RSA) model in a semi-quantitative fashion. Such deposition studies were further used to ascertain that the substrates obtained by in situ and ex situ functionalization behave in an identical fashion.

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