Premium
Modern problems of the theory of macromolecular reactions in polymer blends
Author(s) -
Platé Nicolai,
Litmanovich Arkady,
Yashin Victor,
Kudryavtsev Yaroslav,
Govorun Elena
Publication year - 1997
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19971180146
Subject(s) - polymer blend , materials science , macromolecule , polymer , copolymer , thermodynamics , diffusion , field (mathematics) , reaction rate , polymer science , polymer chemistry , chemistry , mathematics , physics , catalysis , organic chemistry , composite material , biochemistry , pure mathematics
The main task of the theory of macromolecular reactions in polymer blends is to describe an evolution of the blend structure under the concerted action of the reaction and interdiffusion. For a polymeranalogous reaction proceeding with autoacceleration in a compatible blend, the task has been solved by methods of linear non‐equilibrium thermodynamics. The set of reaction‐diffusion equations derived permits to describe the blend structure in details, including the parameters characterizing compositional heterogeneity and units' distribution of the reacting chains in any local region of the blend. For incompatible blend of two homopolymers, the competition between a phase separation and the reaction of end‐coupling with a formation of diblock‐copolymer has been considered. The peculiarities of the processes mentioned as well as the actual problems in this field are discussed.