Dependence of intrinsic viscosity and molecular size on molecular weight of partially hydrolyzed polyacrylamide

2021 ◽  
pp. 50850
Author(s):  
Hao Zhang ◽  
Yujun Feng
Keyword(s):  
Molecular Weight ◽  
Intrinsic Viscosity ◽  
Molecular Size ◽  
Partially Hydrolyzed Polyacrylamide ◽  
Hydrolyzed Polyacrylamide

Relation of Polymer Drag Reduction to Structure and Molecular Weight (Keynote)

2003 ◽  
Author(s):  
Michael Vlachogiannis ◽  
Matthew Liberatore ◽  
Anthony J. McHugh ◽  
Thomas J. Hanratty
Keyword(s):  
Molecular Weight ◽  
Drag Reduction ◽  
Polymer Solution ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Partially Hydrolyzed Polyacrylamide ◽  
Polymer Drag Reduction ◽  
Hydrolyzed Polyacrylamide

The influence of molecular weight distribution on polymer drag reduction was studied for solutions of partially hydrolyzed polyacrylamide by analyzing the solution over a period of time during which the polymer was degrading. No relation was observed between the effectiveness of this polymer solution and molecular weight.

Determination of nonionic and partially hydrolyzed polyacrylamide molecular weight distributions using hydrodynamic chromatography

1986 ◽  
Vol 58 (11) ◽  
pp. 2242-2247 ◽  
Author(s):  
Martin A. Langhorst ◽  
Fredrick W. Stanley ◽  
Sergio S. Cutie ◽  
Jeffrey H. Sugarman ◽  
Larry R. Wilson ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Hydrodynamic Chromatography ◽  
Partially Hydrolyzed Polyacrylamide ◽  
Molecular Weight Distributions ◽  
Weight Distributions ◽  
Hydrolyzed Polyacrylamide

Suppressive Effect of Dextran on Platelet Adhesiveness

1966 ◽  
Vol 16 (03/04) ◽  
pp. 384-394 ◽  
Author(s):  
S Cronberg ◽  
B Robertson ◽  
Inga Marie Nilsson ◽  
J.-E Niléhn
Keyword(s):  
Molecular Weight ◽  
Bleeding Time ◽  
Slight Modification ◽  
Molecular Size ◽  
Suppressive Effect ◽  
Factor Ix ◽  
Factor V ◽  
Platelet Adhesiveness ◽  
History Of ◽  
Mean Molecular Weight

Summary43 normal volunteers, 3 patients with thrombophlebitis, and 1 patient with a high platelet adhesiveness and a history of thrombophlebitis have received dextran and its action on the mechanism of haemostasis has been studied. Platelet adhesiveness has been investigated by a slight modification of Hellem’s methods for whole blood and plasma. Dextran with a mean molecular weight of 70,000 produced a markedly lowered platelet adhesiveness together with a moderate prolongation of the Ivy bleeding time. Factor VIII was decreased by about 50% and factor V, factor IX and fibrinogen were decreased slightly more than could be expected from haemodilution alone. No fibrinolysis occurred. Dextran of lower molecular size was less potent. The possible use of dextrans as a thrombosis prophylactic agent is discussed.

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