The effect of substitution in the theory of branched equilibrium polycondensation

Development of a quantitative theory of polycondensation

“…However, since they provided no rigorous substantiation for the system quasi-ideality, the meaning of the probability parameters of this process and their relation to the constants of the elementary reactions of the model employed remains vague. Such a relation was revealed for an equilibrium regime of polycondensation, and the number of the independent thermodynamic parameters of this model was also indicated [301,358].…”

“…The thermodynamic method invoked [67,249,357,358] to calculate the probability parameters of branching processes describing the configurational statistics of branched polymers is free from these superfluous restrictions. As already noted in the foregoing, the most general and rigorous solution of this problem for an arbitrary equilibrium FSSE polycondensation system has been provided [350], in an algorithm for the construction of the corresponding branching process, as well as that of the calculation of its probability parameters.…”

“…The substitution effects of order m . 1 were studied at m ¼ 2 for homopolycondensation of monomer RA f [301,358,361]. Having introduced this SSSE model, Gordon and Parker [361] advanced the idea to resort to some branching process for the description of the MWD in terms of this model.…”