Gelation molecular distribution after

The molecular weights and molecular weight distributions of the polymers present in the reaction solution before and after gelation were measured by gel permeation chromatography, GPC, with the re-... 

The fraction of growing polymer chains that continues propagating after gelation can be estimated from the relative areas of the high and low molecular weight polymer fractions in each distribution. From this analysis, it is concluded that about A0% of the polymer continues to propagate under these conditions, as shown in Table VI. 

Critical conversion n. The degree of reaction at which the molecu/ar weight distribution curve first extends into the region of infinite molecular weight gelation occurs after critical conversion and before the upper limit of conversion. 

The change in the weight fractions of x-mers as polymerization proceeds is shown in Fig. 10, which indicates that the monomer is the most prevalent species, even after gelation. To find the distribution of molecular weights at the gel point, the factorial terms in Eq. 9 can be approximated using... 

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