Extension of simple polycondensation gelation theories to simple radical and mixed polycondensation/radical gelation

摘要

An equations forecasting with greater precision the degree of conversion at the gel point for polycondensation are derived. Polycondensation statistical gel theory equations can be adapted, without incurring to kinetic terms in the equations, to the case of gelation of mixed polycondensation/radical addition polymers, such as the case of unsaturated polyesters where the polymer is built up by polycondensation, but is networked and hardened by radical addition reactions. The method and equations outlined are apt to describe well the simpler polycondensation/radical addition systems and also indicated the predominance of polycondensation in reaching the gel point of the system in mixed polycondensation/radical systems.