Abstract
The molecular weight distribution after chain scissions was calculated for a polymer initially having a log-normal molecular weight distribution by the application of the idea of Sakurada and Okamura.If the molecular weight distribution of an original polymer is given by:
the molecular weight distribution of the polymer after chain scissions is given by:
where a is the probability of link breaking.nip is computed for different degrees of polymerisation and for various values of a.The correlation between the number of links broken and the ratio of the intrinsic viscosity before to after the chain scission is obtained by numerical integration with the aid of nip.