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VISCOSIMETRIC DETERMINATION OF THE MOLAR MASS

The molar mass determined with an [/jJ-M-relationship is the so-called viscosity average molar masses M, rather than mass (M ) or number average (MJ molar mass (see Chap. 2). This seems to be peculiar on first glance, since the molar masses used for the determination of the [ /]-M-relationships were either number or mass average molar masses (depending on the determination method). However, the samples used for the determination of the [/j]-M-relationship should have had a very narrow molar mass distribution. The unknown sample on the other hand has an unknown distribution function of the molar mass. Only in the case that the distribution function of the unknown sample and the sample used for the determination are the same, or M are determined directly from the viscosimetric measurement. [Pg.98]

See other pages where VISCOSIMETRIC DETERMINATION OF THE MOLAR MASS is mentioned: [Pg.69]    [Pg.70]    [Pg.72]    [Pg.74]    [Pg.76]    [Pg.78]    [Pg.80]    [Pg.82]    [Pg.84]    [Pg.86]    [Pg.88]    [Pg.69]    [Pg.70]    [Pg.72]    [Pg.74]    [Pg.76]    [Pg.78]    [Pg.80]    [Pg.82]    [Pg.84]    [Pg.86]    [Pg.88]    [Pg.38]    [Pg.31]   


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Determining the molar mass

Mass Determination

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Molar mass determination

Molarity determination

Molarity molar masses

Viscosimetric determination

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