Condensation polymerization is one of the most important methods employed to synthesize polymers.The simplest case of condensation polymerization is linear condensation polymerization

which can be categorized into two types and involves the reaction between monomers

or pair monomers

bearing two condensable functional groups.This reaction system has been systematically studied with statistical method by Flory in the 1940s and

under the postulate of equal reactivity of all functional groups

the famous Flory Distribution Functions were derived.These functions revealed the relationship between the properties of reaction system such as number-average degree of polymerization

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the weight-average degree of polymerization

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and molecular weight distributions and the extent of reaction p.In this article

under the postulate of equal reactivity of all functional groups

the processes of two types of linear condensation polymerizations were modeled by computer programming.The result gained agreed with that of Flory’s statistical method.Our method rendered a comparably more vivid picture of the whole process of real reaction and had the potential to be expanded to simulate the real viscous polymerization and to study the kinetics of the reaction system.