Statistics of copolymer sequences obtained by polymeranalogous reactions of homopolymer globules |
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Authors: | SI Kuchanov TV Zharnikov AR Khokhlov |
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Institution: | Physics Department, Moscow State University, 119992, Moscow, Russia. |
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Abstract: | For the first time the macrokinetics of polymeranalogous reaction in a homopolymer globule is considered theoretically. Using
mathematical apparatus of the theory of markovian stochastic processes we examined the statistical characteristics of the
chemical structure of the emerging copolymers. It is shown that when the reaction is kinetically-controlled the sequence distribution
of monomeric units in copolymer chains follows Bernoullian statistics. In the opposite regime, when the reaction is diffusion-controlled
it is proved that the resulting primary structure is described by the Levy flight distribution. Such copolymers with nonmarkovian
character of the alteration of units in macromolecules can not be synthesized in the bulk or in concentrated solutions by
means of standard synthetic polymerization procedures.
Received 14 June 2002 Published online: 16 April 2003
RID="a"
ID="a"e-mail: khokhlov@polly.phys.msu.ru |
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Keywords: | PACS 36 20 Fz Constitution (chains and sequences) – 02 50 Ga Markov processes |
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