Effect of Film Thickness on the Self-Assembly of CBABC Symmetric Pentablock Terpolymer Melts under 1D Confinement: A Dissipative Particle Dynamic Study
The study investigates the impact of film thickness on the phase behavior of pentablock terpolymers, denoted as <i>C</i><sub>3</sub><i>B</i><sub>3</sub><i>A</i><sub>6</sub><i>B</i><sub>3</sub><i>C&l...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/21/6862 |
| _version_ | 1797631641595674624 |
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| author | Yingying Guo |
| author_facet | Yingying Guo |
| author_sort | Yingying Guo |
| collection | DOAJ |
| description | The study investigates the impact of film thickness on the phase behavior of pentablock terpolymers, denoted as <i>C</i><sub>3</sub><i>B</i><sub>3</sub><i>A</i><sub>6</sub><i>B</i><sub>3</sub><i>C</i><sub>3</sub>, when subjected to wall confinement by utilizing the dissipative particle dynamics method. Phase diagrams were constructed to elucidate how factors such as block–block interaction strength, film thickness, and wall properties affect the self-assembly structures. In cases where the wall exhibits no preference for any of the blocks, lamellae phases with orientations perpendicular to the wall are observed. The order–disorder transition (ODT) temperature is found to be influenced by the interaction between the polymer and the wall in thin confinement scenarios. When the wall displays a preference for specific blocks, the orientation of lamellae structures undergoes variations. Lamellae tend to align parallel to the wall when the wall favors A or C blocks, and they orient perpendicularly when B blocks are favored. Furthermore, the mechanical properties of the lamellae structures are related to the conformations of the polymer chains. Structures where chains predominantly adopt a loop conformation exhibit enhanced elastic properties. The ratio of looping to bridging conformations can be adjusted by altering the film thickness and wall selectivity. |
| first_indexed | 2024-03-11T11:26:17Z |
| format | Article |
| id | doaj.art-63c8f158fe5d439691b69c8b666c7db3 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T11:26:17Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-63c8f158fe5d439691b69c8b666c7db32023-11-10T15:07:09ZengMDPI AGMaterials1996-19442023-10-011621686210.3390/ma16216862Effect of Film Thickness on the Self-Assembly of CBABC Symmetric Pentablock Terpolymer Melts under 1D Confinement: A Dissipative Particle Dynamic StudyYingying Guo0School of Science, Qingdao University of Technology, Qingdao 266525, ChinaThe study investigates the impact of film thickness on the phase behavior of pentablock terpolymers, denoted as <i>C</i><sub>3</sub><i>B</i><sub>3</sub><i>A</i><sub>6</sub><i>B</i><sub>3</sub><i>C</i><sub>3</sub>, when subjected to wall confinement by utilizing the dissipative particle dynamics method. Phase diagrams were constructed to elucidate how factors such as block–block interaction strength, film thickness, and wall properties affect the self-assembly structures. In cases where the wall exhibits no preference for any of the blocks, lamellae phases with orientations perpendicular to the wall are observed. The order–disorder transition (ODT) temperature is found to be influenced by the interaction between the polymer and the wall in thin confinement scenarios. When the wall displays a preference for specific blocks, the orientation of lamellae structures undergoes variations. Lamellae tend to align parallel to the wall when the wall favors A or C blocks, and they orient perpendicularly when B blocks are favored. Furthermore, the mechanical properties of the lamellae structures are related to the conformations of the polymer chains. Structures where chains predominantly adopt a loop conformation exhibit enhanced elastic properties. The ratio of looping to bridging conformations can be adjusted by altering the film thickness and wall selectivity.https://www.mdpi.com/1996-1944/16/21/6862symmetric pentablock terpolymresphase behaviorDPD simulation |
| spellingShingle | Yingying Guo Effect of Film Thickness on the Self-Assembly of CBABC Symmetric Pentablock Terpolymer Melts under 1D Confinement: A Dissipative Particle Dynamic Study Materials symmetric pentablock terpolymres phase behavior DPD simulation |
| title | Effect of Film Thickness on the Self-Assembly of CBABC Symmetric Pentablock Terpolymer Melts under 1D Confinement: A Dissipative Particle Dynamic Study |
| title_full | Effect of Film Thickness on the Self-Assembly of CBABC Symmetric Pentablock Terpolymer Melts under 1D Confinement: A Dissipative Particle Dynamic Study |
| title_fullStr | Effect of Film Thickness on the Self-Assembly of CBABC Symmetric Pentablock Terpolymer Melts under 1D Confinement: A Dissipative Particle Dynamic Study |
| title_full_unstemmed | Effect of Film Thickness on the Self-Assembly of CBABC Symmetric Pentablock Terpolymer Melts under 1D Confinement: A Dissipative Particle Dynamic Study |
| title_short | Effect of Film Thickness on the Self-Assembly of CBABC Symmetric Pentablock Terpolymer Melts under 1D Confinement: A Dissipative Particle Dynamic Study |
| title_sort | effect of film thickness on the self assembly of cbabc symmetric pentablock terpolymer melts under 1d confinement a dissipative particle dynamic study |
| topic | symmetric pentablock terpolymres phase behavior DPD simulation |
| url | https://www.mdpi.com/1996-1944/16/21/6862 |
| work_keys_str_mv | AT yingyingguo effectoffilmthicknessontheselfassemblyofcbabcsymmetricpentablockterpolymermeltsunder1dconfinementadissipativeparticledynamicstudy |