Viscosities of polyester solutions. Application of the melt viscosity-Molecular weight relationship to solutions

1942 ◽  
Vol 46 (8) ◽  
pp. 870-877 ◽  
Author(s):  
Paul J. Flory
Keyword(s):  
Molecular Weight ◽  
Melt Viscosity ◽  
Weight Relationship

The melt viscosity-molecular weight relationship for linear polymers

1987 ◽  
Vol 20 (9) ◽  
pp. 2226-2237 ◽  
Author(s):  
Ralph H. Colby ◽  
Lewis J. Fetters ◽  
William W. Graessley
Keyword(s):  
Molecular Weight ◽  
Linear Polymers ◽  
Melt Viscosity ◽  
Weight Relationship

Investigating the Rheological Properties and Heat Stability of Polyarylsulphone Sulphides of Domestic Grades

2017 ◽  
Vol 44 (1) ◽  
pp. 23-26
Author(s):  
A.B. Baranov ◽  
I.D. Simonov-Emel'yanov ◽  
T.I. Andreeva ◽  
T.N. Prudskova ◽  
V.I. Sazikov
Keyword(s):  
Molecular Weight ◽  
Heat Stability ◽  
Chain Structure ◽  
Low Flow ◽  
Processing Temperature ◽  
Rheological Characteristics ◽  
Melt Viscosity ◽  
Full Curve ◽  
Temperature Range ◽  
Service Characteristics

The rheological characteristics of melts of polyarylsulphone sulphides of domestic grades were investigated in the temperature range 240–360°C. Full curves of heat stability were obtained, and formulae were proposed for their description. Polyarylsulphone sulphides (PSPSs) are heat-resistant polymers of structural designation of the polysulphone (PSP) class, the domestic production technology of which was developed at OAO “Institut plastmass”, which makes it possible to carry out the production of a wide grade range of PSP of different polymer chain structure and molecular weight. The main problem in the processing of PSPSs is their high melt viscosity and fairly low flow. Increase in the processing temperature lowers their melt viscosity, but there is then the danger of thermooxidative degradation of the polymer and consequently of deterioration in the service characteristics and appearance of articles. The aim of this work was to investigate the rheological characteristics and to obtain the full curve of heat stability for domestic grades of PSPSs and PSP of different molecular weight in a wide processing temperature range.

Viscosity—molecular weight relationship for cellulose tripropionate in chloroform

Polymer ◽  
1979 ◽  
Vol 20 (6) ◽  
pp. 667-669 ◽  
Author(s):  
G.R. Farvardin ◽  
P. Howard
Keyword(s):  
Molecular Weight ◽  
Weight Relationship

Intrinsic viscosity–molecular weight relationship for low molecular weight nylon 6

1968 ◽  
Vol 12 (9) ◽  
pp. 2105-2109 ◽  
Author(s):  
P. Hague ◽  
M. B. Huglin ◽  
B. L. Johnson ◽  
J. Smith
Keyword(s):  
Molecular Weight ◽  
Intrinsic Viscosity ◽  
Nylon 6 ◽  
Low Molecular Weight ◽  
Weight Relationship

Revisit to the intrinsic viscosity-molecular weight relationship of ionic polymers. 5. Further studies on solution viscosity of sodium poly(styrenesulfonates)

1991 ◽  
Vol 24 (23) ◽  
pp. 6156-6159 ◽  
Author(s):  
Junpei Yamanaka ◽  
Hidemasa Araie ◽  
Hideki Matsuoka ◽  
Hiromi Kitano ◽  
Norio Ise ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Intrinsic Viscosity ◽  
Solution Viscosity ◽  
Ionic Polymers ◽  
Weight Relationship ◽  
Relationship Of
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