Controlling Polymeric Topology by Polymerization Conditions: Mechanically Linked Network and Branched Poly(urethane rotaxane)s with Controllable Polydispersity

摘要

In addition, 12c from melt polymerization of 5 and 7 is believed to be physically cross-linked since it is not soluble in common solvents for 12a and 12b. Therefore, a nvel strategy for controlling polymeric topology simply by reaction conditions to afford mechanically linked network and branched polymeric materials with controllable PDI, which are essentially three-dimensional main chain polyrotazanes, is demonstrated.