Average Chain Length of the Polymer in Stereoregular Polymerization

14 AVERAGE CHAIN LENGTH OF THE POLYMER IN STEREOREGULAR POLYMERIZATION 

The average chain length of the polymer at a given time can be foimd from the following general relation  

Number of monomer molecules polymerized in time t Number of polymer molecules products in time t 

The number of monomer molecules polymerized can be foimd from the rate of polymerization as r dt. The denominator can be found only if the transfer and termination rates are known. If denotes the sum of these rates, then 

This equation ignores the contribution to the integrals from the transition zone. For long times, the second term in Eq. (5.14.3) goes to zero and the following holds  

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