HP-RAFT: A Free-Radical Polymerization Technique for Obtaining Living Polymers of Ultrahigh Molecular Weights

摘要

Synthetic methods based on living polymerizations have become indispensable tools for modern polymer chemists. By minimizing the influence of termination and chain transfer over the final outcome of the polymerization, they provide the only reasonable route to polymers with narrow molecular weight distributions and controlled end groups, and to most of the nonlinear polymer architectures such as block, star, cyclic, and other macromolecules with controlled branching patterns. By making possible the design of polymers with tailored properties, these methods have contributed significantly to the development of nanostructured polymeric materials whose dimensions are controlled by the size of the macromolecules involved in the structuration process.