Nonclassical or Reactivation Chain Polymerization: A General Scheme of Polymerization

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Abstract

Since 1929, two major polymer growth processes, chain and step polymerizations, have been established in the theory of synthetic polymer chemistry. Here, a new integrated model of polymerization is presented: the nonclassical or reactivation chain polymerization. In this model polymer growth involves chemical, physical, or biological reactivation of a dormant chain and subsequent reaction of the reactivated chain with incoming monomers to yield a new dormant chain of higher molecular weight. The process has been demonstrated with oxidative polymerization of aniline, living radical polymerization, and biosynthesis of nucleic acids and proteins. The application of the new theory is exemplified by the synthesis of aniline oligomers with controllable molecular weight and end groups as well as narrow molecular weight distribution.

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