This sequel to A Prehistory of Polymer Science begins with the Faraday Discussion of 1935 on Polymerization. Patterson then examines the remarkable rise and establishment of polymer science after 1935 from the perspective of the emergence of strong intellectual leaders. While enough biographical detail is presented to gain an appreciation for the role played by each leader, the emphasis of this volume is on the key concepts associated with each individual and how the community embraced these leaders.