1
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Lu KY, Wang HF, Lin JW, Chuang WT, Georgopanos P, Avgeropoulos A, Shi AC, Ho RM. Self-Alignment of Cylinder-Forming Silicon-Containing Block Copolymer Films. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01643] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kai-Yuan Lu
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
| | - Hsiao-Fang Wang
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
| | - Jheng-Wei Lin
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
| | - Wei-Tsung Chuang
- National Synchrotron
Radiation Research Center, Hsinchu 30076, Taiwan
| | - Prokopios Georgopanos
- Department of Materials Science Engineering, University of Ioannina, University Campus, Ioannina 45110, Greece
| | - Apostolos Avgeropoulos
- Department of Materials Science Engineering, University of Ioannina, University Campus, Ioannina 45110, Greece
| | - An-Chang Shi
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - Rong-Ming Ho
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
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2
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He X, Zou Z, Kan D, Liang H. Self-assembly of diblock copolymer confined in an array-structure space. J Chem Phys 2015; 142:101912. [PMID: 25770501 DOI: 10.1063/1.4907532] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The combination of top-down and bottom-up technologies is an effective method to create the novel nanostructures with long range order in the field of advanced materials manufacture. In this work, we employed a polymeric self-consistent field theory to investigate the pattern formation of diblock copolymer in a 2D confinement system designed by filling pillar arrays with various 2D shapes such as squares, rectangles, and triangles. Our simulation shows that in such confinement system, the microphase structure of diblock copolymer strongly depends on the pitch, shape, size, and rotation of the pillar as well as the surface field of confinement. The array structures can not only induce the formation of new phase patterns but also control the location and orientation of pattern structures. Finally, several methods to tune the commensuration and frustration of array-structure confinement are proposed and examined.
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Affiliation(s)
- Xuehao He
- Department of Chemistry, School of Science, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Zhixiang Zou
- Department of Chemistry, School of Science, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Di Kan
- Department of Chemistry, School of Science, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Haojun Liang
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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3
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Chen P, Liang H, Xia R, Qian J, Feng X. Directed Self-Assembly of Block Copolymers on Sparsely Nanopatterned Substrates. Macromolecules 2013. [DOI: 10.1021/ma301203a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Peng Chen
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, P. R. China
- Anhui Province Key Laboratory
of Environment-friendly Polymer Materials, Anhui University, Hefei 230039, P. R. China
| | - Haojun Liang
- Hefei National Laboratory for Physical Sciences
at Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, People’s Republic
of China
- Department of Polymer
Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People’s Republic
of China
| | - Ru Xia
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, P. R. China
- Anhui Province Key Laboratory
of Environment-friendly Polymer Materials, Anhui University, Hefei 230039, P. R. China
| | - Jiasheng Qian
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, P. R. China
- Anhui Province Key Laboratory
of Environment-friendly Polymer Materials, Anhui University, Hefei 230039, P. R. China
| | - Xiaoshuang Feng
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, P. R. China
- Eco-Efficient Product & Process Laboratory (E2P2L), UMI 3464, Center for Research & Technology of Shanghai (CRTS), Rhodia (China) Co. Ltd., 3966 Jindu Road, Shanghai 201108, P. R. China
- Anhui Province Key Laboratory
of Environment-friendly Polymer Materials, Anhui University, Hefei 230039, P. R. China
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4
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Ramírez-Hernández A, Liu G, Nealey PF, de Pablo JJ. Symmetric Diblock Copolymers Confined by Two Nanopatterned Surfaces. Macromolecules 2012. [DOI: 10.1021/ma2026594] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Abelardo Ramírez-Hernández
- Department of Chemical and Biological Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706,
United States
| | - Guoliang Liu
- Department of Chemical and Biological Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706,
United States
| | - Paul F. Nealey
- Department of Chemical and Biological Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706,
United States
| | - Juan J. de Pablo
- Department of Chemical and Biological Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706,
United States
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5
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Trombly DM, Pryamitsyn V, Ganesan V. Self-Assembly of Diblock Copolymer on Substrates Modified by Random Copolymer Brushes. Macromolecules 2011. [DOI: 10.1021/ma202075d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David M. Trombly
- Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
| | - Victor Pryamitsyn
- Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
| | - Venkat Ganesan
- Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
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6
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Vu T, Mahadevapuram N, Perera GM, Stein GE. Controlling Domain Orientations in Thin Films of AB and ABA Block Copolymers. Macromolecules 2011. [DOI: 10.1021/ma2009222] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thai Vu
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Nikhila Mahadevapuram
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Ginusha M. Perera
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
| | - Gila E. Stein
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204-4004, United States
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7
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Sushko ML, Liu J. Surfactant two-dimensional self-assembly under confinement. J Phys Chem B 2011; 115:4322-8. [PMID: 21443214 DOI: 10.1021/jp2003497] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Confinement-induced structural rearrangements in supported self-assembled surfactant layers in aqueous salt solutions are investigated using classical density functional theory. The systematic study of the influence of the nature of electrolyte revealed that 2:1 electrolyte stabilizes the hemicylindrical configuration of ionic surfactant layers, while a confinement-induced transition to a tilted monolayer configuration was found in symmetric 1:1 and 2:2 electrolytes. On the basis of this study, we formulate a general model for the energetics of structural rearrangements in supported surfactant layers. This model provides a basis for directed self-assembly of surfactant templates with desired structure and stability for scalable synthesis of nanocomposite functional materials, templated crystal growth, and biomolecule adsorption.
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Affiliation(s)
- Maria L Sushko
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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8
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Ye X, Edwards BJ, Khomami B. Elucidating the Formation of Block Copolymer Nanostructures on Patterned Surfaces: A Self-Consistent Field Theory Study. Macromolecules 2010. [DOI: 10.1021/ma101227w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xianggui Ye
- Materials Research and Innovation Laboratory (MRAIL), Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Sustainable Energy Education and Research Center, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Brian J. Edwards
- Materials Research and Innovation Laboratory (MRAIL), Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Sustainable Energy Education and Research Center, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Bamin Khomami
- Materials Research and Innovation Laboratory (MRAIL), Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Sustainable Energy Education and Research Center, University of Tennessee, Knoxville, Tennessee 37996, United States
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9
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Tsarkova L, Sevink GJA, Krausch G. Nanopattern Evolution in Block Copolymer Films: Experiment, Simulations and Challenges. COMPLEX MACROMOLECULAR SYSTEMS I 2010. [DOI: 10.1007/12_2010_54] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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10
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del Campo A, Arzt E. Fabrication Approaches for Generating Complex Micro- and Nanopatterns on Polymeric Surfaces. Chem Rev 2008; 108:911-45. [PMID: 18298098 DOI: 10.1021/cr050018y] [Citation(s) in RCA: 235] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Aránzazu del Campo
- Max-Planck-Institut für Metallforschung, Heisenbergstraβe 3, 70569 Stuttgart, Germany
| | - Eduard Arzt
- Max-Planck-Institut für Metallforschung, Heisenbergstraβe 3, 70569 Stuttgart, Germany
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11
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Liang GD, Xu JT, Fan ZQ, Mai SM, Ryan AJ. Morphology of semicrystalline oxyethylene/oxybutylene block copolymer thin films on mica. POLYMER 2007. [DOI: 10.1016/j.polymer.2007.09.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Song J, Li Y, Huang Q, Shi T, An L. Monte Carlo simulation on symmetric ABA/AB copolymer blends in confined thin films. J Chem Phys 2007; 127:094903. [PMID: 17824761 DOI: 10.1063/1.2764071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The effects of blend composition on morphology, order-disorder transition (ODT), and chain conformation of symmetric ABA/AB copolymer blends confined between two neutral hard walls have been investigated by lattice Monte Carlo simulation. Only lamellar structure is observed in all the simulation morphologies under thermodynamic equilibrium state, which is supported by theoretical prediction. When the composition of AB diblock copolymer (phi) increases, both lamellar spacing and the corresponding ODT temperature increase, which can be attributed to the variation of conformation distribution of the diblock and the triblock copolymer chains. In addition, both diblock and triblock copolymer, chains with bridge conformation extend dramatically in the direction parallel to the surface when the system is in ordered state. Finally, the copolymer chain conformation depends strongly on both the blend composition and the incompatibility parameter chiN.
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Affiliation(s)
- Jianhui Song
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Peoples' Republic of China
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13
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Wang Q. Symmetric diblock copolymers in nanopores: Monte Carlo simulations and strong-stretching theory. J Chem Phys 2007; 126:024903. [PMID: 17228969 DOI: 10.1063/1.2406078] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have performed lattice Monte Carlo simulations to study the self-assembled morphology of symmetric diblock copolymers in nanopores. The pore diameter and surface preference are systematically varied to examine their effects on the chain conformations, structures of various morphologies, and their phase transition. Various ensemble-averaged profiles and quantities are used to provide detailed information about the system. The simulation results are also compared with the predictions of a strong-stretching theory commonly used in the literature. Such comparisons reveal the deficiencies of this theory in describing the morphologies under cylindrical confinement, and call for further theoretical studies using more accurate formalisms.
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Affiliation(s)
- Qiang Wang
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, Colorado 80523-1370, USA.
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14
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Monte Carlo Simulations of Nano-Confined Block Copolymers. ACTA ACUST UNITED AC 2007. [DOI: 10.1007/978-1-4020-6330-5_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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15
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Chen P, Liang H. Monte Carlo Simulations of Cylinder-Forming ABC Triblock Terpolymer Thin Films. J Phys Chem B 2006; 110:18212-24. [PMID: 16970438 DOI: 10.1021/jp061957c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We systematically study the cylinder-forming ABC triblock terpolymer thin films using canonical ensemble Monte Carlo simulations. The simulated annealing procedure is applied to the self-assembling process. By judicious choice of the system dimensions, we elaborately investigate the effect of film thickness on the orientation of the cylinders. This confined triblock terpolymer system exhibits different phase behavior under the weak and strong surface fields. In addition, we also investigate the ensemble-averaged chain orientations and relative density profiles.
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Affiliation(s)
- Peng Chen
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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16
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Sprenger M, Schlesener F, Dietrich S. Forces between chemically structured substrates mediated by critical fluids. J Chem Phys 2006; 124:134703. [PMID: 16613464 DOI: 10.1063/1.2178355] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We consider binary liquid mixtures close to their critical points confined by two parallel, geometrically flat, and chemically structured substrates. Universal order parameter profiles are calculated within mean field theory for periodic patterns of stripes with alternating preferences for the two species of the mixture and with different relative positions of the two substrates. From the order parameter profiles the effective forces between the two plates are derived. The tuning of Casimir amplitudes is discussed.
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Affiliation(s)
- Monika Sprenger
- Max-Planck-Institut für Metallforschung, Heisenbergstrasse 3, D-70569 Stuttgart, Germany.
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