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Morita H, Sugimori H, Doi M, Jinnai H. Single chain distribution analysis near a substrate using a combined method of three-dimensional imaging and SCF simulation. Eur Polym J 2011. [DOI: 10.1016/j.eurpolymj.2010.09.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kłos JS, Romeis D, Sommer JU. Adsorption of random copolymers from a melt onto a solid surface: Monte Carlo studies. J Chem Phys 2010; 132:024907. [DOI: 10.1063/1.3277670] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Oh H, Green PF. Role of Diblock Copolymers toward Controlling the Glass Transition of Thin Polymer Films. Macromolecules 2008. [DOI: 10.1021/ma071805v] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hyunjoon Oh
- Department of Materials Science and Engineering and Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109
| | - Peter F. Green
- Department of Materials Science and Engineering and Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109
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Semler JJ, Genzer J. Design of random copolymers with statistically controlled monomer sequence distributions via Monte Carlo simulations. J Chem Phys 2006; 125:014902. [PMID: 16863328 DOI: 10.1063/1.2210011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We use Monte Carlo simulations to model the formation of random copolymers with tunable monomer sequence distributions. Our scheme is based on the original idea proposed a few years ago by Khokhlov and Khalatur [Physica A 249, 253 (1998); Phys. Rev. Lett. 82, 3456 (1999)], who showed that the distribution of species B in A-B random copolymers can be regulated by (a) adjusting the coil size of a homopolymer A and (b) chemically modifying ("coloring") monomers that reside at (or close to) the periphery of the coil with species B. In contrast to Khokhlov and Khalatur's work, who modeled the polymer modification by performing the coloring instantaneously, we let the chemical coloring reaction progress over time using computer simulations. We show that similar to Khokhlov and Khalatur's work, the blockiness (i.e., number of consecutive monomers) of the B species along the A-B copolymer increases with increasing degree of collapse of the parent homopolymer A. A simple analysis of the A-B monomer sequences in the copolymers reveals that monomer sequence distributions in homopolymers "colored" under collapsed conformations possess certain degrees of self-similarity, while there is no correlation found among the monomer sequence distributions formed by coloring homopolymers with expanded conformations.
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Affiliation(s)
- James J Semler
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, USA
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Costa AC, Composto RJ, Vlcek P, Geoghegan M. Block copolymer adsorption from a homopolymer melt to an amine-terminated surface. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2005; 18:159-66. [PMID: 16247551 DOI: 10.1140/epje/i2005-10040-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2005] [Accepted: 08/12/2005] [Indexed: 05/05/2023]
Abstract
Using neutron reflectometry, the adsorption of diblock copolymers from a neutral polystyrene (PS) matrix is studied as a function of substrate type and non-adsorbing block degree of polymerization. The block copolymer is poly(deutero styrene)-block-poly(methyl methacrylate) and the substrates are silicon oxide, SiO(x), and SiO(x) functionalized with (3-aminopropyl)triethoxysilane (APTES). We have determined the equilibrium volume fraction-depth profiles for such films, and compared them with volume fraction profiles generated by self-consistent mean-field (SCMF) theory and find good agreement between the experimental and theoretical data. SCMF calculations show that the segmental interaction energy between PS matrix chains and APTES is two orders of magnitude stronger than that between PS and SiO(x).
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Affiliation(s)
- A C Costa
- Department of Materials Science and Engineering, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104-6272, USA
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Effects of solid substrate on structure and properties of casting waterborne polyurethane/carboxymethylchitin films. POLYMER 2004. [DOI: 10.1016/j.polymer.2004.02.072] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Costa AC, Geoghegan M, Vlček P, Composto RJ. Block Copolymer Adsorption from a Homopolymer Melt to Silicon Oxide: Effects of Nonadsorbing Block Length and Anchoring Block−Substrate Interaction. Macromolecules 2003. [DOI: 10.1021/ma0348324] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ana Claudia Costa
- Department of Materials Science and Engineering, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Department of Physics and Astronomy, University of Sheffield, Hounsfield Road, Sheffield S3 7RH, United Kingdom; and Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Mark Geoghegan
- Department of Materials Science and Engineering, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Department of Physics and Astronomy, University of Sheffield, Hounsfield Road, Sheffield S3 7RH, United Kingdom; and Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Petr Vlček
- Department of Materials Science and Engineering, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Department of Physics and Astronomy, University of Sheffield, Hounsfield Road, Sheffield S3 7RH, United Kingdom; and Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Russell J. Composto
- Department of Materials Science and Engineering, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Department of Physics and Astronomy, University of Sheffield, Hounsfield Road, Sheffield S3 7RH, United Kingdom; and Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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Cui S, Liu C, Zhang W, Zhang X, Wu C. Desorption Force per Polystyrene Segment in Water. Macromolecules 2003. [DOI: 10.1021/ma034090e] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shuxun Cui
- Key Lab for Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130023, P.R. China, and Department of Chemistry and Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Chuanjun Liu
- Key Lab for Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130023, P.R. China, and Department of Chemistry and Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Wenke Zhang
- Key Lab for Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130023, P.R. China, and Department of Chemistry and Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Xi Zhang
- Key Lab for Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130023, P.R. China, and Department of Chemistry and Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Chi Wu
- Key Lab for Supramolecular Structure and Materials College of Chemistry, Jilin University, Changchun, 130023, P.R. China, and Department of Chemistry and Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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Traiphol R, Smith DW, Perahia D. Surface ordering in thin films of liquid-crystalline polymers containing fluorinated and protonated segments: Neutron-reflectometry study. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/polb.10346] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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