Polymers divinyl benzene/ethylene dimethacrylate

Predict the extent of reaction at which gelation would occur in the following two vinyl-divinyl systems, both containing 1 mol% of the divinyl component (a) styrene-ethylene glycol dimethacrylate and (b) methyl methacrylate-divinyl benzene. Assume that the reaction conditions for the two systems are such as to yield the same DP. of 1000 for the uncrosslinked polymer. Take the r and T2 values from Table 7.1 for the analogous vinyl-vinyl copolymerizations. [Ans. (a) Pc = 0.015 (b) p, = 0.012.]... 

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