Supersymmetry theory of microphase separation in homopolymer-oligomer mixtures
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Supersymmetry theory of microphase separation in homopolymer-oligomer mixtures
|
|
| Creator |
Oliemskoi, Oleksandr Ivanovych
Олемской, Александр Иванович Олємской, Олександр Іванович Krakovsky, Ivan Savelyev, Alexey |
|
| Subject |
supersymmetry
mesoscopic structure |
|
| Description |
The mesoscopic structure of periodically alternating layers of stretched homopolymer chains surrounded by perpendicularly oriented oligomeric tails is studied for systems with both strong ionic and weak hydrogen interactions. We focus on the consideration of the distribution of oligomers along the homopolymer chains that is described by the effective equation of motion with the segment number playing the role of imaginary time. The supersymmetry technique is developed to consider associative hydrogen bonding, self-action effects, inhomogeneity, and temperature fluctuations in the oligomer distribution. Making use of the self-consistent approach allows one to explain experimentally observed temperature dependence of the structure period and the order-disorder transition temperature and period as functions of the oligomeric fraction for systems with different bonding strengths. A whole set of parameters of the model used is found for strong, intermediate, and weak coupled systems being Poly (4-vinyl pyridine)–dodecyl benzene sulfonic acid [P4VP-(DBSA)x ], P4VP-[Zn(DBS)2]x, and P4VP- 3-pentadecyl Phenolx, respectively. A passage from the former two to the latter is shown to cause a crucial decrease in the magnitude of both parameters of hydrogen bonding and self-action, as well as the order-disorder transition temperature.
|
|
| Publisher |
Physical review E
|
|
| Date |
2011-02-25T09:49:51Z
2011-02-25T09:49:51Z 2004 |
|
| Type |
Article
|
|
| Identifier |
Olemskoi, A.I. Supersymmetry theory of microphase separation in homopolymer-oligomer mixtures [Текст] / A.I. Olemskoi, I. Krakovsky, A. Savelyev // Physical review E. — 2004. — vol. 69. — p. 13
http://essuir.sumdu.edu.ua/handle/123456789/3275 |
|
| Language |
en
|
|