Molecular weight distribution and relationship between chemical composition and molecular weight in high-conversion samples of copoly(styrene-methyl acrylate) prepared in solution by adding initiator

1985 ◽  
Vol 18 (3) ◽  
pp. 347-350 ◽  
Author(s):  
Shinya Teramachi ◽  
Akira Hasegawa ◽  
Fumiya Sato ◽  
Nobuhiro Takemoto
Keyword(s):  
Molecular Weight ◽  
Chemical Composition ◽  
Molecular Weight Distribution ◽  
Methyl Acrylate ◽  
Weight Distribution ◽  
High Conversion

The polymerization of styrene by sulphuric acid - III. The molecular weight distribution

1961 ◽  
Vol 263 (1312) ◽  
pp. 75-81 ◽  
Keyword(s):  
Molecular Weight ◽  
Sulphuric Acid ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
High Conversion ◽  
Chain Growth ◽  
Characteristic Parameters ◽  
Relative Probability ◽  
Probable Distribution ◽  
Most Probable Distribution

The theory of the molecular weight distribution in polystyrenes initiated by sulphuric acid, described in part I, has been tested by preparation and fractionation of suitable low-yield polymer samples. The expected ‘most probable’ distribution is found in these samples, but not in a high-conversion polymer. The characteristic parameters of the distributions the relative probability of chain growth—agree with values calculated from the kinetic con­stants measured in part II.

Development of a chemically sensitive online SEC detector based on FTIR spectroscopy

2015 ◽  
Vol 6 (1) ◽  
pp. 128-142 ◽  
Author(s):  
Timo F. Beskers ◽  
Thorsten Hofe ◽  
Manfred Wilhelm
Keyword(s):  
Molecular Weight ◽  
Chemical Composition ◽  
Ftir Spectroscopy ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Coupling Method ◽  
Correlated Information

A new FTIR–SEC coupling method provides correlated information about the molecular weight distribution and the chemical composition and has the potential to be applied as a standard SEC detector.

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