Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions
Effect of distribution of stickers along the backbone on structural properties in associating polymer solutions is studied using self-consistent field lattice model. Only two inhomogeneous morphologies, i.e., microfluctuation homogenous (MFH) and micelle morphologies, are observed. If the system is...
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| Дата: | 2012 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2012
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120173 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions / X.-G. Han, X.-F. Zhang, Y.-H. Ma // Condensed Matter Physics. — 2012. — Т. 15, № 3. — С. 33602:1-10. — Бібліогр.: 35 назв. — англ. |
Репозитарії
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irk-123456789-1201732017-06-12T03:02:36Z Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions Han, X.-G. Zhang, X.-F. Ma, Y.-H. Effect of distribution of stickers along the backbone on structural properties in associating polymer solutions is studied using self-consistent field lattice model. Only two inhomogeneous morphologies, i.e., microfluctuation homogenous (MFH) and micelle morphologies, are observed. If the system is cooled, the solvent content within the aggregates decreases. When the spacing of stickers along the backbone is increased the temperature-dependent range of aggregation in MFH morphology and half-width of specific heat peak for homogenous solutions-MFH transition increase, and the symmetry of the peak decreases. However, with increasing spacing of stickers, the above three corresponding quantities related to micelles behave differently. It is demonstrated that the broad nature of the observed transitions can be ascribed to the structural changes which accompany the replacement of solvents in aggregates by polymer, which is consistent with the experimental conclusion. It is found that different effect of spacing of stickers on the two transitions can be interpreted in terms of intrachain and interchain associations. Вплив розподiлу центрiв зв’язування (stickers) вздовж головного ланцюга на структурнi властивостi в асоцiативних полiмерних розчинах вивчається з використанням ґраткової моделi самоузгодженого поля. Виявлено лише двi неоднорiднi морфологiї, а саме мiкрофлуктуацiйну гомогенну (МФГ) та мiцелярну морфологiї. Якщо система є охолодженою, тодi зменшується вмiст розчинника всерединi агрегатiв. Коли вiдстань мiж центрами зв’язування вздовж головного ланцюга збiльшується, тодi зростають температурно залежний дiапазон агрегацiї в морфологiї МФГ i пiвширина пiку питомої теплоємностi для переходу гомогеннi розчини-МФГ, а симетрiя пiку – зменшується. Проте, з ростом вiдстанi мiж центрами зв’язування вище згаданi три величини, пов’язанi з мiцелами, поводять себе iнакше. Показано, що рiзний характер спостережених переходiв може пояснюватися структурними змiнами, якi супроводжують замiну розчинникiв в агрегатах на полiмери, що узгоджується з результатами експерименту. Знайдено, що вплив вiдстанi мiж центрами зв’язування на цi два переходи можна також трактувати на мовi внутрiшньоланцюгових i мiжланцюгових асоцiацiй. 2012 Article Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions / X.-G. Han, X.-F. Zhang, Y.-H. Ma // Condensed Matter Physics. — 2012. — Т. 15, № 3. — С. 33602:1-10. — Бібліогр.: 35 назв. — англ. 1607-324X PACS: 61.25.Hp, 64.75.+g, 82.60.Fa DOI:10.5488/CMP.15.3360 arXiv:1210.1726 http://dspace.nbuv.gov.ua/handle/123456789/120173 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 |
Effect of distribution of stickers along the backbone on structural properties in associating polymer solutions is studied using self-consistent field lattice model. Only two inhomogeneous morphologies, i.e., microfluctuation homogenous (MFH) and micelle morphologies, are observed. If the system is cooled, the solvent content within the aggregates decreases. When the spacing of stickers along the backbone is increased the temperature-dependent range of aggregation in MFH morphology and half-width of specific heat peak for homogenous solutions-MFH transition increase, and the symmetry of the peak decreases. However, with increasing spacing of stickers, the above three corresponding quantities related to micelles behave differently. It is demonstrated that the broad nature of the observed transitions can be ascribed to the structural changes which accompany the replacement of solvents in aggregates by polymer, which is consistent with the experimental conclusion. It is found that different effect of spacing of stickers on the two transitions can be interpreted in terms of intrachain and interchain associations. |
| format |
Article |
| author |
Han, X.-G. Zhang, X.-F. Ma, Y.-H. |
| spellingShingle |
Han, X.-G. Zhang, X.-F. Ma, Y.-H. Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions Condensed Matter Physics |
| author_facet |
Han, X.-G. Zhang, X.-F. Ma, Y.-H. |
| author_sort |
Han, X.-G. |
| title |
Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions |
| title_short |
Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions |
| title_full |
Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions |
| title_fullStr |
Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions |
| title_full_unstemmed |
Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions |
| title_sort |
effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2012 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/120173 |
| citation_txt |
Effect of distribution of stickers along backbone on temperature-dependent structural properties in associative polymer solutions / X.-G. Han, X.-F. Zhang, Y.-H. Ma // Condensed Matter Physics. — 2012. — Т. 15, № 3. — С. 33602:1-10. — Бібліогр.: 35 назв. — англ. |
| series |
Condensed Matter Physics |
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AT hanxg effectofdistributionofstickersalongbackboneontemperaturedependentstructuralpropertiesinassociativepolymersolutions AT zhangxf effectofdistributionofstickersalongbackboneontemperaturedependentstructuralpropertiesinassociativepolymersolutions AT mayh effectofdistributionofstickersalongbackboneontemperaturedependentstructuralpropertiesinassociativepolymersolutions |
| first_indexed |
2023-10-18T20:36:24Z |
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2023-10-18T20:36:24Z |
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1796150640505782272 |