| Автор | Pichugin, V E |
| Автор | Kuchanov, S I |
| Дата выпуска | 2005-07-01 |
| dc.description | An original diagrammatic technique is advanced for calculating, in the first-harmonic approximation of the Weak Segregation Limit theory, the coefficients of the amplitude expansion of the Landau free energy for a melt of a binary incompressible heteropolymer comprising linear macromolecules with arbitrary chemical structure. A universal approach to the calculation of these coefficients for heteropolymer liquids describable using the Landau theory of phase transitions with a two-component order parameter is put forward for the first time. This approach proves to be particularly efficient in a theoretical consideration of the thermodynamic behaviour of multiblock copolymers whose macromolecules contain blocks of two types substantially differing in length. A general algorithm for finding the coefficients of the amplitude expansion of the Landau free energy in such systems is formulated for a number of mesophases showing two characteristic scales of spatial periodicity. The application of this algorithm is exemplified by considering a deformed hexagonally perforated lamellar mesophase. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | IOP Publishing Ltd |
| Название | A diagrammatic technique in the Landau theory with a two-component order parameter describing the phase transitions in heteropolymer liquids |
| Тип | paper |
| DOI | 10.1088/1742-5468/2005/07/P07009 |
| Electronic ISSN | 1742-5468 |
| Журнал | Journal of Statistical Mechanics: Theory and Experiment |
| Том | 2005 |
| Первая страница | P07009 |
| Последняя страница | P07009 |
| Аффилиация | Pichugin, V E; Polymers and Crystals Chair, Physics Department, Lomonosov Moscow State University, Vorobjevi gory, 119992, Moscow, Russia |
| Аффилиация | Kuchanov, S I; Polymers and Crystals Chair, Physics Department, Lomonosov Moscow State University, Vorobjevi gory, 119992, Moscow, Russia ; Keldysh Institute of Applied Mathematics, Miusskaya Square 4, 125047, Moscow, Russia |
| Выпуск | 07 |
