Intramolecular reactions of the functional groups scattered onto a polymer chain were discussed in connection with the possibility for controlling the reaction.
At first, experimental results in the reactions between two functional groups of X-Y type molecules were presented. The chain length dependence of intramolecular reaction was discussed in reference to the ring-closure probability of the polymer chain. Several ways for calculating the probability were described.
In the latter part, the intrachain reaction of polymers containing randomly spaced reactive groups (substrates) and catalytic groups, was described. Kinetic theories considering the distribution of the catalytic groups on the chain, were derived and applied to several experimental results.