Theory of polymer crosslinking

On the other hand, it can be found [2] that the gel fraction is related to the initial molecular weight, defined by n, u2, u3.. ., by 

For very small values of g, higher orders of 5g may be ignored and 

Equations (6)—(8) are better expressed in terms of the experimental parameters rgel/r. Since, by definition, q = q0r, 5 is given by 

Theoretical plots of (S + ZS) as a function of rgei are given in Fig. 7 for the various types of initial molecular weight distribution. 

G (crosslinked units) can also be expressed Mrad) from eqn. (4) and the expression for rgei 

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