The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers
Using the self-consistent field approach, the effect of asymmetry of the coil block on the microphase separation is focused in ABC coil-rod-coil triblock copolymers. For different fractions of the rod block fB, some stable structures are observed, i.e., lamellae, cylinders, gyroid, and core-shell h...
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| Дата: | 2017 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2017
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/157029 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers / X.-G. Han, H.-H. Meng, Y.-H. Ma, S.-L. Ouyang // Condensed Matter Physics. — 2017. — Т. 20, № 4. — С. 43601: 1–9. — Бібліогр.: 34 назв. — англ. |
Репозитарії
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irk-123456789-1570292019-06-20T01:28:29Z The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers Han, X.-G. Meng, H.-H. Ma, Y.-H. Ouyang, S.-L. Using the self-consistent field approach, the effect of asymmetry of the coil block on the microphase separation is focused in ABC coil-rod-coil triblock copolymers. For different fractions of the rod block fB, some stable structures are observed, i.e., lamellae, cylinders, gyroid, and core-shell hexagonal lattice, and the phase diagrams are constructed. The calculated results show that the effect of the coil block fraction fA is dependent on fB. When fB = 0.2, the effect of asymmetry of the coil block is similar to that of the ABC flexible triblock copolymers; When fB = 0.4, the self-assembly of ABC coil-rod-coil triblock copolymers behaves like rod-coil diblock copolymers under some condition. When fB continues to increase, the effect of asymmetry of the coil block reduces. For fB = 0.4, under the symmetrical and rather asymmetrical conditions, an increase in the interaction parameter between different components leads to different transitions between cylinders and lamellae. The results indicate some remarkable effect of the chain architecture on self-assembly, and can provide the guidance for the design and synthesis of copolymer materials. Використовуючи самоузгоджений польовий пiдхiд, описано вплив асиметрiї виткоподiбного блоку на мiкрофазне роздiлення в ABC триблокових кополiмерах виток-стержень-виток. Для рiзних фракцiй стержневого блоку fB, спостерiгаються стiйкi структури, а саме ламели, цилiндри, гiроїд i гексагональна ґратка сердечник-оболонка, а також побудованi фазовi дiаграми. Результати обчислень показують, що ефект фракцiї виткоподiбного блоку fA залежить вiд fB. Коли fB = 0.2, тодi вплив асиметрiї виткоподiбного блоку є подiбним до ефекту ABC гнучких триблокових кополiмерiв. Коли fB = 0.4, тодi самоскупчення ABC виток-стержень-виток триблокових кополiмерiв вiдбувається подiбно до двоблокових кополiмерiв стержень-виток за певних умов. Коли fB продовжує зростати, тодi вплив асиметрiї виткоподiбного блоку зменшується. При fB = 0.4, за симетричних та доволi асиметричних умов, збiльшення параметра взаємодiї мiж рiзними компонентами призводить до рiзних переходiв мiж цилiндрами та ламелами. Результати вказують на деякий значний вплив ланцюжкової архiтектури на самоскупчення, що може бути керiвництвом для розробки та синтезу кополiмерних матерiалiв. 2017 Article The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers / X.-G. Han, H.-H. Meng, Y.-H. Ma, S.-L. Ouyang // Condensed Matter Physics. — 2017. — Т. 20, № 4. — С. 43601: 1–9. — Бібліогр.: 34 назв. — англ. 1607-324X PACS: 61.25.Hp, 64.75.+g, 82.60.Fa DOI:10.5488/CMP.20.43601 arXiv:1712.05337 http://dspace.nbuv.gov.ua/handle/123456789/157029 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
Using the self-consistent field approach, the effect of asymmetry of the coil block on the microphase separation
is focused in ABC coil-rod-coil triblock copolymers. For different fractions of the rod block fB, some stable structures are observed, i.e., lamellae, cylinders, gyroid, and core-shell hexagonal lattice, and the phase diagrams are
constructed. The calculated results show that the effect of the coil block fraction fA is dependent on fB. When
fB = 0.2, the effect of asymmetry of the coil block is similar to that of the ABC flexible triblock copolymers;
When fB = 0.4, the self-assembly of ABC coil-rod-coil triblock copolymers behaves like rod-coil diblock copolymers under some condition. When fB continues to increase, the effect of asymmetry of the coil block reduces.
For fB = 0.4, under the symmetrical and rather asymmetrical conditions, an increase in the interaction parameter between different components leads to different transitions between cylinders and lamellae. The results
indicate some remarkable effect of the chain architecture on self-assembly, and can provide the guidance for
the design and synthesis of copolymer materials. |
| format |
Article |
| author |
Han, X.-G. Meng, H.-H. Ma, Y.-H. Ouyang, S.-L. |
| spellingShingle |
Han, X.-G. Meng, H.-H. Ma, Y.-H. Ouyang, S.-L. The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers Condensed Matter Physics |
| author_facet |
Han, X.-G. Meng, H.-H. Ma, Y.-H. Ouyang, S.-L. |
| author_sort |
Han, X.-G. |
| title |
The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers |
| title_short |
The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers |
| title_full |
The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers |
| title_fullStr |
The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers |
| title_full_unstemmed |
The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers |
| title_sort |
effect of asymmetry of the coil block on self-assembly in abc coil-rod-coil triblock copolymers |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2017 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/157029 |
| citation_txt |
The effect of asymmetry of the coil block on self-assembly in ABC coil-rod-coil triblock copolymers / X.-G. Han, H.-H. Meng, Y.-H. Ma, S.-L. Ouyang // Condensed Matter Physics. — 2017. — Т. 20, № 4. — С. 43601: 1–9. — Бібліогр.: 34 назв. — англ. |
| series |
Condensed Matter Physics |
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2023-05-20T17:51:16Z |
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