Formation of Hybrid Wormlike Micelles upon Mixing Cetyl Trimethylammonium Bromide with Poly(methyl methacrylate-co-sodium styrene sulfonate) Copolymers in Aqueous Solution

Langmuir ◽  
2011 ◽  
Vol 27 (8) ◽  
pp. 5054-5061 ◽  
Author(s):  
E. Oikonomou ◽  
G. Bokias ◽  
J. K. Kallitsis ◽  
I. Iliopoulos
Keyword(s):  
Aqueous Solution ◽  
Methyl Methacrylate ◽  
Wormlike Micelles ◽  
Poly Methyl Methacrylate ◽  
Styrene Sulfonate ◽  
Cetyl Trimethylammonium Bromide ◽  
Sodium Styrene Sulfonate

Dispersion of Single and Multiwalled Nanotubes with Poly(sodium styrene sulfonate) – Effect of pH and Ionic Strength on Dispersion Stability

2014 ◽  
Vol 67 (1) ◽  
pp. 66 ◽  
Author(s):  
Christopher Hassam ◽  
David A. Lewis
Keyword(s):  
Aqueous Solution ◽  
Single Step ◽  
Protective Agent ◽  
Aqueous Dispersions ◽  
Step Process ◽  
Multiwalled Nanotubes ◽  
Styrene Sulfonate ◽  
Sodium Styrene Sulfonate ◽  
Dispersal Agent ◽  
Poly Styrene Sulfonate

Aqueous dispersions of carbon nanotubes with poly(styrene sulfonate) were investigated over a range of pH and ionic strengths as a means of determining the potential for further application of the polymer as a protective agent for the tubes. The poly(styrene sulfonate) was found to be an effective dispersal agent, capable of reducing the size of the nanotube agglomerates within an aqueous solution and dispersing the tubes in a single-step process.

scholarly journals Biological Properties of an Heparin-Poly (Methyl Methacrylate) Copolymer

1977 ◽  
Author(s):  
D. Labarre ◽  
G.A. Boffa ◽  
M. Jozefowicz ◽  
M.C. Boffa
Keyword(s):  
Aqueous Solution ◽  
Methyl Methacrylate ◽  
Antithrombin Iii ◽  
Biological Properties ◽  
Anticoagulant Effect ◽  
Factor V ◽  
Clotting Factors ◽  
Poly Methyl Methacrylate ◽  
Methacrylate Copolymer ◽  
Ig G

The heparin-poly(methyl methacrylate) copolymer was prepared by polymerization of methyl methacrylate on an heparin radical. It was initiated by cerium IV ions and heparin in nitric aqueous solution.An heparin effect was present in the plasma in contact with the copolymer. It was not due to a release of heparin in the plasma, but to a contact effect. The anticoagulant effect was depending upon the concentration of the copolymer. The activity of clotting factors in plasma, after a contact with the copolymer was not decreased except for factor V. Antithrombin III was selectively adsorbed on the surface of the copolymer.The copolymer lost progressively its anticoagulant properties after each contact with the plasma. This might be due to the adsorption of fibrinogen on the copolymer. Labelled 125I albumin, transferrin, Ig G and fibrinogen were not similarly desorbed in the presence of serum and of plasma.This copolymer seems to offer interesting properties for blood devices.

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