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Molecular weight averages comparison

The objective of this present work was to investigate the feasibility of using GPC/DV for absolute molecular weight determination of hydroxypropylated lignins. In order to verify the validity of the universal calibration method, vapor phase osmometry (VPO) was used to provide reference number average molecular weight values. Comparisons with LALLS results have also been made and will be reported in another publication. [Pg.108]

Unfortunately, the free-draining case is not realistic for dilute solutions, so that eq. (3.78) must be used. According to an idea of Wales of this Institute, a comparison between the standard molecular weight averages and the polydispersity factor can be carried out as follows. The averages < Ma > , where x is taken as a whole number, are calculated as follows ... [Pg.230]

Figure 13. Comparison between number average molecular weight predicted by axisymmetric model with effective transport properties and experimentally measured values for styrene [5] and vinyl acetate [2]. ... Figure 13. Comparison between number average molecular weight predicted by axisymmetric model with effective transport properties and experimentally measured values for styrene [5] and vinyl acetate [2]. ...

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See also in sourсe #XX -- [ Pg.293 ]




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Average molecular weight

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Molecular weight averaging

Molecular weight-averaged

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