MWD: General description

Purpose

Application to analyze Molecular Weight Distributions

Data Files

• The first line of the file should contain the sample parameters separated by semi-colons (;). It may contain any number of parameters which will be read and saved as file-parameter in RepTate.

• Then the data columns should appear, separated by spaces or tabs.

.gpc extension

Text files with .gpc extension should be organised as follows:

• .gpc files should provide parameter values for

  1. number-average molar mass, \(M_n\)

  2. weight-average molar mass, \(M_w\)

  3. polydispersity index, \(\text{PDI}\)

• 2 columns separated by spaces or tabs containing respectively:

  1. molar mass, \(M\),

  2. weight associated, \(\dfrac{\text d w(\log M)}{\text d \log M}\).

A correct .gpc file looks like:

Mn=100;Mw=250;PDI=2.5
0.1148E+03 0.5000E-03
0.1514E+03 0.1500E-02
0.1995E+03 0.1667E-02
0.2630E+03 0.1750E-02
0.3467E+03 0.5250E-02
0.4571E+03 0.6750E-02
...        ...

.reac extension

Text files with .reac extension should be organised as follows:

• .reac files are not expected to provide any specific parameter values.

• 4 columns separated by spaces or tabs containing respectively:

  1. molar mass, \(M\),

  2. weight associated, \(\dfrac{\text d w(\log M)}{\text d \log M}\),

  3. the g-factor, \(g(M)\),

  4. number of branch per 1000 carbon, \(\log_{10}(g(M))\).

A correct .reac file looks like:

0.1148E+03 0.5000E-03 0.1000E+01 0.0000E+00
0.1514E+03 0.1500E-02 0.1000E+01 0.0000E+00
0.1995E+03 0.1667E-02 0.1000E+01 0.0000E+00
0.2630E+03 0.1750E-02 0.1000E+01 0.0000E+00
0.3467E+03 0.5250E-02 0.1000E+01 0.0000E+00
0.4571E+03 0.6750E-02 0.9977E+00 0.3765E+00
...        ...        ...        ...

Views

log-lin

ApplicationMWD.view_WM()

\(W(M)\) vs \(M\)

(Molecular weight in logarithmic scale)

log-log

ApplicationMWD.view_logWM()

\(\log(W(M))\) vs \(\log(M)\)

lin-lin

ApplicationMWD.view_WM()

\(W(M)\) vs \(M\)