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Wu J, Chen ST, Li SB, Liu LM, Wang XH, Lang WC. Simulation of Surface-Induced Morphology Transition and Phase Diagram of Linear Triblock Copolymers under Spherical Confinement. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2812-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wu J, Huang Z, Lang W, Wang X, Li S. Surface-Induced Nanostructures and Phase Diagrams of ABC Linear Triblock Copolymers under Spherical Confinement: A Self-Consistent Field Theory Simulation. Polymers (Basel) 2018; 10:E1276. [PMID: 30961201 PMCID: PMC6401785 DOI: 10.3390/polym10111276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 11/08/2018] [Accepted: 11/14/2018] [Indexed: 11/23/2022] Open
Abstract
We investigate the nanostructures and phase diagrams of ABC linear triblock copolymers confined in spherical cavities by using real-space self-consistent field theory. Various 3D morphologies, such as spherical concentric lamellae, dumbbell-like cylinder, and rotational structures, are identified in the phase diagrams, which are constructed on the basis of the diameters of spherical cavities and the interaction between the polymers and preferential surfaces. We designate specific monomer-monomer interactions and block compositions, with which the polymers spontaneously form a cylindrical morphology in bulk, and firstly study morphology transformation with a neutral surface when a confining radius progressively increases. We then focus on phase morphologies under the preferential surfaces and consolidate them into phase diagrams. The spherical radius and the degree of preferential interactions can obviously induce the formation of a cylindrical morphology. Theoretical results correspond to an amount of recent experimental observations to a high degree and contribute to synthesising functional materials.
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Affiliation(s)
- Ji Wu
- Department of Physics, Wenzhou Vocational & Technical College, Wenzhou 325035, Zhejiang, China.
| | - Zhihong Huang
- Department of Physics, Wenzhou Vocational & Technical College, Wenzhou 325035, Zhejiang, China.
| | - Wenchang Lang
- Department of Physics, Wenzhou Vocational & Technical College, Wenzhou 325035, Zhejiang, China.
| | - Xianghong Wang
- Department of Physics, Wenzhou University, Wenzhou 325035, Zhejiang, China.
| | - Shiben Li
- Department of Physics, Wenzhou University, Wenzhou 325035, Zhejiang, China.
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Ogieglo W, Stenbock-Fermor A, Juraschek TM, Bogdanova Y, Benes N, Tsarkova LA. Synergic Swelling of Interactive Network Support and Block Copolymer Films during Solvent Vapor Annealing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9950-9960. [PMID: 30070855 DOI: 10.1021/acs.langmuir.8b02304] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report the effect of "interactive" polymer network (PN) supports on the solvent-vapor processing of thin polymer films. Densely cross-linked surface-attached network exhibits under experimental time scale a glassy swelling behavior with the conformational states and solvent-uptake clearly sensitive to the degree of solvent vapor saturation in the atmosphere. Pretreatment of the thermally cured PN films by complete immersion or by swelling in saturated chloroform vapors facilitates relaxation of the residual stresses and induces irreversible changes to the network structure as revealed by the swelling/deswelling tests. The presence of a polymer film on top of the PN support results in a mutual influence of the layers on the respective swelling kinetics, steady-state solvent uptake, and chain dynamics. Using UV-vis ellipsometry, we revealed a significantly faster swelling and higher solvent uptake of glassy PN layer below a polymer film as compared to a single PN layer on silicon substrate. Remarkably, the swelling of the network support continues to increase even when the overall swelling of the bilayer is in a steady-state regime. Block copolymer films on PN supports exhibit a faster ordering dynamics and exceptional stability toward dewetting as compared to similar films on silicon wafers. The mechanical stress produced by continuously swelling PN is suggested to account for the enhanced segmental dynamics even at low solvent concentration in the block copolymer film. Apart from novel insights into dynamics of solvent uptake by heterogeneous polymer films, these results might be useful in developing novel approaches toward fast-processing/annealing of functional polymer films and fibers.
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Affiliation(s)
- Wojciech Ogieglo
- DWI-Leibniz-Institut für Interaktive Materialien , Forckenbeckstraße 50 , 52056 Aachen , Germany
| | - Anja Stenbock-Fermor
- DWI-Leibniz-Institut für Interaktive Materialien , Forckenbeckstraße 50 , 52056 Aachen , Germany
| | - Thomas M Juraschek
- DWI-Leibniz-Institut für Interaktive Materialien , Forckenbeckstraße 50 , 52056 Aachen , Germany
| | - Yulia Bogdanova
- Chair of Colloid Chemistry, Faculty of Chemistry , Moscow State University , 1-3 Leninskiye Gory , 119991 Moscow , Russia
| | - Nieck Benes
- Membrane Science and Technology Cluster/Films in Fluids Group, Faculty of Science and Technology , University of Twente , 7500 AE Enschede , The Netherlands
| | - Larisa A Tsarkova
- Chair of Colloid Chemistry, Faculty of Chemistry , Moscow State University , 1-3 Leninskiye Gory , 119991 Moscow , Russia
- Deutsches Textilforschungszentrum Nord-West gGmbH (DTNW) , Adlerstraße 1 , 47798 Krefeld , Germany
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Wang Z, Shao J, Pan H, Feng X, Chen P, Xia R, Wu X, Qian J. Monte Carlo simulations of the phase separation of a copolymer blend in a thin film. Chemphyschem 2015; 16:567-71. [PMID: 25504337 DOI: 10.1002/cphc.201402690] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Indexed: 11/09/2022]
Abstract
Monte Carlo simulations were carried out to study the phase separation of a copolymer blend comprising an alternating copolymer and/or block copolymer in a thin film, and a phase diagram was constructed with a series of composed recipes. The effects of composition and segregation strength on phase separation were discussed in detail. The chain conformation of the block copolymer and alternating copolymer were investigated with changes of the segregation strength. Our simulations revealed that the segment distribution along the copolymer chain and the segregation strength between coarse-grained beads are two important parameters controlling phase separation and chain conformation in thin films of a copolymer blend. A well-controlled phase separation in the copolymer blend can be used to fabricate novel nanostructures.
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Affiliation(s)
- Zhexiao Wang
- Anhui Province Key Laboratory of Environment-friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601 (P. R. China)
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Monte Carlo simulation on layered polymeric films. CHINESE JOURNAL OF POLYMER SCIENCE 2014. [DOI: 10.1007/s10118-014-1446-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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6
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Self-assembly of linear triblock copolymers under cylindrical nanopore confinements. CHINESE JOURNAL OF POLYMER SCIENCE 2012. [DOI: 10.1007/s10118-013-1183-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yu J, Geng C, Zeng Y, Yan Q, Wang X, Shen D. Confined Self-Assembly of Asymmetric Diblock Copolymers within Silica Nanobowl Arrays. ACS Macro Lett 2012; 1:62-66. [PMID: 35578454 DOI: 10.1021/mz200032k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The confined self-assembly of asymmetric diblock copolymer polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA) within an array of silica nanobowls prepared using a colloidal spheres templating technique is investigated. By manipulation of the nanobowl size, block copolymer (BCP) thickness, and interfacial interaction, a rich variety of ordered BCP nanostructures not accessible in the bulk system or under other confinements are obtained, resulting in hierarchically ordered nanostructures.
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Affiliation(s)
- Jie Yu
- Department of Chemistry, State
Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Chong Geng
- Department of Chemistry, State
Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yiming Zeng
- Department of Chemistry, State
Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Qingfeng Yan
- Department of Chemistry, State
Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Xiaoqing Wang
- Department of Chemistry, State
Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Dezhong Shen
- Department of Chemistry, State
Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, People's Republic of China
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Chai AH, Zhang LX. Microdomain morphology of cylinder-forming diblock copolymers under spherical shell confinement. CHINESE JOURNAL OF POLYMER SCIENCE 2011. [DOI: 10.1007/s10118-011-1072-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Guo X, Yuan S, Yang S, Lv K, Yuan S. Mesoscale simulation on patterned core–shell nanosphere model for amphiphilic block copolymer. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.03.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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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: 0.4] [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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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: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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EFFECT OF NANOPARTICLES ON MORPHOLOGY OF DIBLOCK COPOLYMER FILMS. ACTA POLYM SIN 2009. [DOI: 10.3724/sp.j.1105.2009.00530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chen P, Liang H, Shi AC. Microstructures of a Cylinder-Forming Diblock Copolymer under Spherical Confinement. Macromolecules 2008. [DOI: 10.1021/ma800443h] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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
| | - Haojun Liang
- 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
| | - An-Chang Shi
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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Han W, Tang P, Li X, Qiu F, Zhang H, Yang Y. Self-Assembly of Star ABC Triblock Copolymer Thin Films: Self-Consistent Field Theory. J Phys Chem B 2008; 112:13738-48. [DOI: 10.1021/jp801675z] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenchi Han
- Key Laboratory of Molecular Engineering of Polymer, Ministry of Education, and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Ping Tang
- Key Laboratory of Molecular Engineering of Polymer, Ministry of Education, and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Xuan Li
- Key Laboratory of Molecular Engineering of Polymer, Ministry of Education, and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Feng Qiu
- Key Laboratory of Molecular Engineering of Polymer, Ministry of Education, and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Hongdong Zhang
- Key Laboratory of Molecular Engineering of Polymer, Ministry of Education, and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yuliang Yang
- Key Laboratory of Molecular Engineering of Polymer, Ministry of Education, and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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Chen P, Liang H. Cylinder-Forming Triblock Terpolymer in Nanopores: A Monte Carlo Simulation Study. J Phys Chem B 2008; 112:1918-25. [DOI: 10.1021/jp072942x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peng Chen
- Hefei National Laboratory for Physical Sciences at Microscale University of Science and Technology of China Hefei, Anhui, 230026, People's Republic of China, and Department of Polymer Science and Engineering University of Science and Technology of China Hefei, Anhui, 230026, People's Republic of 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, 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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Feng J, Ruckenstein E. Self-assembling of ABC linear triblock copolymers in nanocylindrical tubes. J Chem Phys 2007; 126:124902. [PMID: 17411156 DOI: 10.1063/1.2715587] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
By employing Monte Carlo simulations for various tube diameters and preferences of the tube surface for the A, B, and C segments, the morphologies of A(5)B(5)C(5), A(5)B(10)C(5), and A(5)B(5)C(10) triblock copolymer melts confined in nanocylindrical tubes were examined. The interaction parameters between different segments were considered constant epsilon(AB)=epsilon(AC)=epsilon(BC)=0.3k(B)T, the tube diameter was changed from d=9xlattice parameter to d=33xlattice parameter, and the preferences of the tube surface for the segments A, B, and C (-epsilon(AS),-epsilon(BS), and -epsilon(CS)) were varied between 0.05k(B)T and k(B)T. ABCCBA alternately stacked disks were generated in most tubes when the preference of the tube surface for any of the segments was weak, and the morphologies tended to transform into curved lamellae in tubes with large diameters when the preference for one of the segments was high. Numerous novel morphologies, such as ABC double helixes, AB single helix+C double helixes, AB double helixes+C quadruple helixes, plate morphologies with fins, dendrites, etc., which were located in the phase diagram between the stacked disks and the curved lamellar structures, were identified. Additionally, the orientation parameters indicating the alignments of the polymer chains were calculated and correlated with the morphologies.
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Affiliation(s)
- Jie Feng
- Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260-4200, USA
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