If you find the Doi PDF too advanced, start with Jones. If you want more polymer-specific detail, read Doi’s earlier classic: Introduction to Polymer Physics (1996).
The book is often praised for the "Doi philosophy," which can be summarized as follows:
To make sense of the vast complexity of macromolecules, Doi emphasizes —ignoring the chemical details of individual atoms to focus on the universal physical laws that govern the system as a whole. This is paired with scaling theory , which allows physicists to predict how properties like viscosity or elasticity change with molecular weight or concentration. 3. Polymer Dynamics and Reptation