Molecular Weight Distribution Data on High Polymers-Graphical Representation

1946 ◽  
Vol 18 (6) ◽  
pp. 342-348 ◽  
Author(s):  
R.F. Boyer
Keyword(s):  
Molecular Weight ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Graphical Representation ◽  
Distribution Data ◽  
High Polymers

Obtaining the kinetic function of depolymerization from evolving molecular weight distribution data-an inverse problem

AIChE Journal ◽  
2012 ◽  
Vol 59 (3) ◽  
pp. 912-922 ◽  
Author(s):  
Y. Leong Yeow ◽  
Bifei Guan ◽  
Liang Wu ◽  
Tze-Ming Yap ◽  
Jong-Leng Liow ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Inverse Problem ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Distribution Data ◽  
Kinetic Function

scholarly journals Molecular Weight Distribution Studies on Heparin

1977 ◽  
Author(s):  
Grant H. Barlow
Keyword(s):  
Molecular Weight ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Gel Filtration ◽  
Equilibrium Analysis ◽  
Resolving Power ◽  
Sedimentation Equilibrium ◽  
Distribution Data ◽  
Molecular Weights ◽  
Distribution Studies

The determination of molecular weight distribution using the sedimentation equilibrium analysis developed for polymers by T. Scholte (J. Polymer Sei, 6, 111, 1968) has been adapted for heparin analysis. Pork mucosal heparin separated into molecular weight subfractions by gel filtration on Ultrogel AcA44 (L.K.B.) was used to test the validity and resolving power of the method. Results indicate that the method is able to differentiate molecular weight distribution satisfactorily. Comparisons have been made of molecular weight distribution of samples from different species, organs and manufacturers. Average molecular weights for most samples center around 15,000 Dal tons, but samples show considerable variation in their distribution data. Results suggest that variations between manufacturers is more pronounced than the specie and organ difference indicating the importance of the purification procedure.

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