Interactions between Adsorbed Layers of a Low Charge Density Cationic Polyelectrolyte on Mica in the Absence and Presence of Anionic Surfactant

1997 ◽  
Vol 190 (2) ◽  
pp. 476-484 ◽  
Author(s):  
U.R.Mikael Kjellin ◽  
Per M. Claesson ◽  
Roland Audebert
Keyword(s):  
Charge Density ◽  
Anionic Surfactant ◽  
Cationic Polyelectrolyte ◽  
Adsorbed Layers ◽  
Low Charge

Brushlike Cationic Polymers with Low Charge Density for Gene Delivery

2017 ◽  
Vol 19 (5) ◽  
pp. 1410-1415 ◽  
Author(s):  
Jonathan O’Keeffe Ahern ◽  
Sigen A ◽  
Dezhong Zhou ◽  
Yongsheng Gao ◽  
Jing Lyu ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Charge Density ◽  
Cationic Polymers ◽  
Low Charge

Cationic long-chain hyperbranched poly(ethylene glycol)s with low charge density for gene delivery

2013 ◽  
Vol 4 (2) ◽  
pp. 393-401 ◽  
Author(s):  
Chunlai Tu ◽  
Nan Li ◽  
Lijuan Zhu ◽  
Linzhu Zhou ◽  
Yue Su ◽  
...  
Keyword(s):  
Gene Delivery ◽  
Ethylene Glycol ◽  
Charge Density ◽  
Poly Ethylene Glycol ◽  
Hyperbranched Poly ◽  
Poly Ethylene ◽  
Low Charge ◽  
Long Chain

Synthesis and viscometric properties of low charge density ampholytic ionomers

Polymer ◽  
1985 ◽  
Vol 26 (7) ◽  
pp. 1058-1068 ◽  
Author(s):  
D.G. Peiffer ◽  
R.D. Lundberg
Keyword(s):  
Charge Density ◽  
Low Charge

The effects of changing NOM composition and characteristics on coagulation performance, optimisation and control

2004 ◽  
Vol 4 (4) ◽  
pp. 95-102 ◽  
Author(s):  
E.L. Sharp ◽  
S.A. Parsons ◽  
B. Jefferson
Keyword(s):  
Charge Density ◽  
Water Source ◽  
Cationic Polyelectrolyte ◽  
Winter Period ◽  
Potential Range ◽  
The Novel ◽  
Coagulation Performance ◽  
Resin Adsorption ◽  
Autumn And Winter ◽  
And Control

A number of water utilities have been experiencing operational difficulties during specific times of the year, associated with elevated levels of organics due to heavy rainfall or snow melt. Water samples were collected from Albert treatment works (Halifax, UK) and the natural organic matter (NOM) was characterised using XAD resin adsorption techniques. The addition of a cationic polyelectrolyte was employed to determine the charge density of the fractions. Results show that NOM fraction make-up changes throughout the year, with the fulvic acid fraction (FAF) showing the greatest increase during the autumn and winter period. The charge density of the FAF fraction also increases. The coagulation conditions for traditional coagulants, such as iron, are more affected by increased levels of organics than the novel coagulant also investigated, and the zeta potential range for optimum removal is narrower. Therefore, the conditions required for zero charge during coagulation varies with both raw water source and the coagulant type.

Soluble complexes in aqueous mixtures of low charge density comb polyelectrolyte and oppositely charged surfactant probed by scattering and NMR

2007 ◽  
Vol 312 (1) ◽  
pp. 21-33 ◽  
Author(s):  
Luis A. Bastardo ◽  
Joseph Iruthayaraj ◽  
Maria Lundin ◽  
Andra Dedinaite ◽  
Aušvydas Vareikis ◽  
...  
Keyword(s):  
Charge Density ◽  
Aqueous Mixtures ◽  
Low Charge ◽  
Oppositely Charged ◽  
Soluble Complexes

The effect of surfactants on adsorbed layers of a cationic polyelectrolyte

1994 ◽  
Vol 272 (12) ◽  
pp. 1590-1601 ◽  
Author(s):  
V. Shubin ◽  
P. Petrov ◽  
B. Lindman
Keyword(s):  
Cationic Polyelectrolyte ◽  
Adsorbed Layers
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