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Wylie K, Dong L, Chandra A, Nabae Y, Hayakawa T. Modifying the Interaction Parameters of a Linear ABC Triblock Terpolymer by Functionalizing the Short, Reactive Middle Block To Induce Morphological Change. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02567] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kevin Wylie
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Lei Dong
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Alvin Chandra
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yuta Nabae
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Teruaki Hayakawa
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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Polymer translocation through a hairy channel mimicking the inner plug of a nuclear pore complex. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2019; 48:317-327. [PMID: 30927020 DOI: 10.1007/s00249-019-01356-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 02/23/2019] [Accepted: 03/08/2019] [Indexed: 10/27/2022]
Abstract
A microscopic transport model of a polymer translocating through a nuclear pore complex (NPC) is presented based on self-consistent field theory (SCFT), with the NPC and its nucleoporins mimicked by a hairy channel. Multiple cell environment effects (electrolyte effect, excluded volume effect, NPC drag effect, and hydrophobic effect) are all considered in this hairy channel model. The influence of various parameters (polymer chain length, length of NPC, strength of hydrophobic effect, and excluded volume effect) on translocation time is studied through theoretical analysis and numerical calculation. Numerical simulation results show that an area of low nucleoporin number density exists in the NPC, which facilitates the translocation of the polymer. The results also show that the translocation time curves with increasing NPC length and polymer charge number are concave. In addition, there are critical values for NPC length and polymer charge number for which the translocation time has a minimal value. The translocation time decreases with the increasing strength of the hydrophobic effect and excluded volume effect.
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Tencé-Girault S, Woehling V, Oikonomou EK, Karpati S, Norvez S. About the Art and Science of Visualizing Polymer Morphology using Transmission Electron Microscopy. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201700483] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sylvie Tencé-Girault
- Laboratoire Matière Molle et Chimie; ESPCI Paris; PSL Research University; 10 rue Vauquelin 75005 Paris France
| | - Vincent Woehling
- Laboratoire Matière Molle et Chimie; ESPCI Paris; PSL Research University; 10 rue Vauquelin 75005 Paris France
| | - Evdokia K. Oikonomou
- Laboratoire Matière Molle et Chimie; ESPCI Paris; PSL Research University; 10 rue Vauquelin 75005 Paris France
| | - Szilvia Karpati
- Laboratoire Matière Molle et Chimie; ESPCI Paris; PSL Research University; 10 rue Vauquelin 75005 Paris France
| | - Sophie Norvez
- Laboratoire Matière Molle et Chimie; ESPCI Paris; PSL Research University; 10 rue Vauquelin 75005 Paris France
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Abstract
Block polymer self-assembly typically translates molecular chain connectivity into mesoscale structure by exploiting incompatible blocks with large interaction parameters (χij). In this article, we demonstrate that the converse approach, encoding low-χ interactions in ABC bottlebrush triblock terpolymers (χAC [Formula: see text] 0), promotes organization into a unique mixed-domain lamellar morphology, which we designate LAMP Transmission electron microscopy indicates that LAMP exhibits ACBC domain connectivity, in contrast to conventional three-domain lamellae (LAM3) with ABCB periods. Complementary small-angle X-ray scattering experiments reveal a strongly decreasing domain spacing with increasing total molar mass. Self-consistent field theory reinforces these observations and predicts that LAMP is thermodynamically stable below a critical χAC, above which LAM3 emerges. Both experiments and theory expose close analogies to ABA' triblock copolymer phase behavior, collectively suggesting that low-χ interactions between chemically similar or distinct blocks intimately influence self-assembly. These conclusions provide fresh opportunities for block polymer design with potential consequences spanning all self-assembling soft materials.
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Bey A, Dreyer O, Abetz V. Thermodynamic analysis of alkali metal complex formation of polymer-bonded crown ether. Phys Chem Chem Phys 2017; 19:15924-15932. [DOI: 10.1039/c7cp02651j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Polymer bonded crown ethers complexed with alkali metal salts are much more stable compared to free crown ethers.
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Affiliation(s)
- Alexandra Bey
- University of Hamburg
- Institute of Physical Chemistry
- 20146 Hamburg
- Germany
| | - Oliver Dreyer
- University of Hamburg
- Institute of Physical Chemistry
- 20146 Hamburg
- Germany
| | - Volker Abetz
- University of Hamburg
- Institute of Physical Chemistry
- 20146 Hamburg
- Germany
- Helmholtz-Zentrum Geesthacht
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Cao X, Zhang L, Wang L, Lin J. Insights into ordered microstructures and ordering mechanisms of ABC star terpolymers by integrating dynamic self-consistent field theory and variable cell shape methods. SOFT MATTER 2014; 10:5916-5927. [PMID: 24985482 DOI: 10.1039/c4sm00658e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A theoretical approach coupling dynamic self-consistent field (SCF) theory for inhomogeneous polymeric fluids and variable cell shape (VCS) method for automatically adjusting cell shape and size is developed to investigate ordered microstructures and the ordering mechanisms of block copolymer melts. Using this simulation method, we first re-examined the microphase separation of the simplest AB diblock copolymers, and tested the validity and efficiency of the novel method by comparing the results with those obtained from the dynamic SCF theory. An appropriate relaxation parameter of the VCS method effectively accelerates the system towards a stable morphology without distortions or defects. The dynamic SCF/VCS method is then applied to identify the richness morphologies of ABC star terpolymers and explore the ordering mechanisms of star terpolymer melts quenched from homogenous states. A diverse range of ordered microstructures, including two-dimensional tiling patterns, hierarchical structures and ordinary microstructures, are predicted. Three types of ordering mechanisms, namely, one-step, quick-slow and step-wise procedures, are discovered in the disorder-to-order transition of ABC star terpolymers. The procedures of microphase separation in the ABC star terpolymer melts are remarkably affected by the composition of star terpolymers and the strength of interaction parameters.
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Affiliation(s)
- Xuguang Cao
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
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Cortese J, Soulié-Ziakovic C, Leibler L. Binding and supramolecular organization of homo- and heterotelechelic oligomers in solutions. Polym Chem 2014. [DOI: 10.1039/c3py00638g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solvent can subtly influence the organization of supramolecular polymers.
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Affiliation(s)
- Jessalyn Cortese
- Matière Molle et Chimie (UMR 7167 ESPCI-CNRS)
- Ecole Supérieure de Physique et Chimie Industrielles de la Ville de Paris ESPCI-ParisTech
- 75005 Paris
- France
| | - Corinne Soulié-Ziakovic
- Matière Molle et Chimie (UMR 7167 ESPCI-CNRS)
- Ecole Supérieure de Physique et Chimie Industrielles de la Ville de Paris ESPCI-ParisTech
- 75005 Paris
- France
| | - Ludwik Leibler
- Matière Molle et Chimie (UMR 7167 ESPCI-CNRS)
- Ecole Supérieure de Physique et Chimie Industrielles de la Ville de Paris ESPCI-ParisTech
- 75005 Paris
- France
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Saint-Aubin K, Poulin P, Jaillet C, Maugey M, Zakri C. Changes of morphology and properties of block copolymers induced by carbon nanotubes. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Dumon M, Ruiz JAR, Sanz JP, Perez MAR, Tallon JM, Pedros M, Cloutet E, Viot P. Block Copolymer-Assisted Microcellular Supercritical CO2 Foaming of Polymers and Blends. CELLULAR POLYMERS 2012. [DOI: 10.1177/026248931203100402] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The behaviour in supercritical CO2 of block copolymers containing styrenic, butadiene, and methacrylic or perfluroalkyl blocks is studied in view of a specific swelling and foaming by a gas dissolution process. These block copolymers are considered as neat materials or as additives in blends e.g in polystyrene (PS) or polymethylmethacrylate (PMMA) matrices. In both cases (neat or blend) the copolymers may exhibit a structuration at a micro or nano level. The phase separated (nano) structures depend on the block type and the concentration of copolymers in the polymer matrix, so that micelles, vesicles, lamellas, or warm-like structures are generated. Furthermore when one block is chosen as a highly CO2-philic moiety, the nanostructures are able to act as CO2 reservoirs. The result is the possibility to control microcellular foaming, or sometimes nanocellular foaming, of commodity amorphous polymers such as PMMA and PS. Besides, at room temperature, the blocks can be either glassy or rubbery in order to freeze the growth and coalescence of cells during foaming. Different cellular polymers were elaborated by varying either the copolymer type or the foaming conditions (saturation pressure, temperature, depressurization rate). Cell sizes are accessible in a range from 0.2 to 200 μm, and densities from 0.40 to 1 g/cm3. It is also shown that nanostructuring polymers are also efficient to produce polymer foams with oriented / structured voids. This new approach could be used to produce nanocellular or ultra microcellular polymer foams in a simple process, using blending and extrusion.
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Affiliation(s)
- Michel Dumon
- Laboratoire de Chimie des Polymères Organiques (LPCO), ENSCBP Ecole Nationale Supérieure de Chimie Biologie et Physique, 16 Avenue Pey-Berland, 33607 Pessac, Université de Bordeaux, France
- Département Science et Génie des Matériaux, IUT Institut Universitaire de Technologie, Gradignan, Université de Bordeaux, France
| | - José Antonio Reglero Ruiz
- Laboratoire de Chimie des Polymères Organiques (LPCO), ENSCBP Ecole Nationale Supérieure de Chimie Biologie et Physique, 16 Avenue Pey-Berland, 33607 Pessac, Université de Bordeaux, France
| | - Javier Pinto Sanz
- Cellular Materials Laboratory (CellMat), Condensed Matter Physics Dept, Universidad de Valladolid, Spain
| | | | - J-M. Tallon
- Département Science et Génie des Matériaux, IUT Institut Universitaire de Technologie, Gradignan, Université de Bordeaux, France
| | - M. Pedros
- Département Science et Génie des Matériaux, IUT Institut Universitaire de Technologie, Gradignan, Université de Bordeaux, France
| | - E. Cloutet
- Laboratoire de Chimie des Polymères Organiques (LPCO), ENSCBP Ecole Nationale Supérieure de Chimie Biologie et Physique, 16 Avenue Pey-Berland, 33607 Pessac, Université de Bordeaux, France
| | - P. Viot
- Institut de Mécanique et d'Ingénierie de Bordeaux I2M, dépt DUMAS, Arts et Métiers, Talence, site de Bordeaux, France
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Nanostructured films and composites from carbon nanotubes dispersed by ABC block terpolymers in selective solvent. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.05.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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STUDIES ON THE SURFACE MORPHOLOGY OF POLY(STYRENE-<I>b</I>-DIMETHYLSILOXANE) COPOLYMER THIN FILMS. ACTA POLYM SIN 2010. [DOI: 10.3724/sp.j.1105.2006.00885] [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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Horvat A, Sevink GJA, Zvelindovsky AV, Krekhov A, Tsarkova L. Specific features of defect structure and dynamics in the cylinder phase of block copolymers. ACS NANO 2008; 2:1143-1152. [PMID: 19206332 DOI: 10.1021/nn800181m] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We present a systematic study of defects in thin films of cylinder-forming block copolymers upon long-term thermal or solvent annealing. In particular, we consider in detail the peculiarities of both classical and specific topological defects, and conclude that there is a strong "defect structure-chain mobility" relationship in block copolymers. In the systems studied, representative defect configurations provide connectivity of the minority phase in the form of dislocations with a closed cylinder end or classical disclinations with incorporated alternative, nonbulk structures with planar symmetry. In solvent-annealed films with enhanced chain mobility, the neck defects (bridges between parallel cylinders) were observed. This type of nonsingular defect has not been identified in block copolymer systems before. We argue that topological arguments and 2D defect representation, sufficient for lamellar systems, are not sufficient to determine the stability and mobility of defects in the cylindrical phase. In-situ scanning force microscopy measurements are compared with the simulations based on the dynamic self-consistent mean field theory. The close match between experimental measurements and simulation results suggests that the lateral defect motion is diffusion-driven. In addition, 3D simulations demonstrated that the bottom (wetting) layer is only weakly involved into the structure ordering at the free surface. Finally, the morphological evolution is considered with the focus on the motion and interaction of the representative defect configurations.
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Affiliation(s)
- Andriana Horvat
- Physikalische Chemie II, Universitat Bayreuth, D-95440 Bayreuth, Germany
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Di Cola E, Fleury C, Panine P, Cloitre M. Steady Shear Flow Alignment and Rheology of Lamellae-Forming ABC Triblock Copolymer Solutions: Orientation, Defects, and Disorder. Macromolecules 2008. [DOI: 10.1021/ma702876k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Emanuela Di Cola
- Laboratoire Matière Molle et Chimie, UMR ESPCI-CNRS 7167, ESPCI, 10 rue Vauquelin, 75231 Paris, France, and European Synchroton Research Facility, 6 rue Jules Horowitz, 38043 Grenoble, France
| | - Carine Fleury
- Laboratoire Matière Molle et Chimie, UMR ESPCI-CNRS 7167, ESPCI, 10 rue Vauquelin, 75231 Paris, France, and European Synchroton Research Facility, 6 rue Jules Horowitz, 38043 Grenoble, France
| | - Pierre Panine
- Laboratoire Matière Molle et Chimie, UMR ESPCI-CNRS 7167, ESPCI, 10 rue Vauquelin, 75231 Paris, France, and European Synchroton Research Facility, 6 rue Jules Horowitz, 38043 Grenoble, France
| | - Michel Cloitre
- Laboratoire Matière Molle et Chimie, UMR ESPCI-CNRS 7167, ESPCI, 10 rue Vauquelin, 75231 Paris, France, and European Synchroton Research Facility, 6 rue Jules Horowitz, 38043 Grenoble, France
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Wu N, Zheng A, Huang Y, Liu H. Morphology of poly(styrene-block-dimethylsiloxane) copolymer films. J Appl Polym Sci 2007. [DOI: 10.1002/app.23952] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Epps TH, Bates FS. Effect of Molecular Weight on Network Formation in Linear ABC Triblock Copolymers. Macromolecules 2006. [DOI: 10.1021/ma052132o] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thomas H. Epps
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455
| | - Frank S. Bates
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455
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Affiliation(s)
- Laurent Corté
- Matière Molle et Chimie, Ecole Supérieure de Physique Chimie Industrielle (UMR ESPCI-CNRS 7167), 10 rue Vauquelin, Paris 75005, France
| | - Ludwik Leibler
- Matière Molle et Chimie, Ecole Supérieure de Physique Chimie Industrielle (UMR ESPCI-CNRS 7167), 10 rue Vauquelin, Paris 75005, France
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Xia J, Sun M, Qiu F, Zhang H, Yang Y. Microphase Ordering Mechanisms in Linear ABC Triblock Copolymers. A Dynamic Density Functional Study. Macromolecules 2005. [DOI: 10.1021/ma051355b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianfeng Xia
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Mingzhu Sun
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Feng Qiu
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Hongdong Zhang
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yuliang Yang
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, China, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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Yamaguchi D, Cloitre M, Panine P, Leibler L. Phase Behavior and Viscoelastic Properties of Thermoplastic Elastomer Gels Based on ABC Triblock Copolymers. Macromolecules 2005. [DOI: 10.1021/ma050294e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daisuke Yamaguchi
- Laboratoire Matière Molle et Chimie (UMR ESPCI-CNRS 7167), ESPCI, 10 rue Vauquelin, 75231 Paris Cedex 05, France, and European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
| | - Michel Cloitre
- Laboratoire Matière Molle et Chimie (UMR ESPCI-CNRS 7167), ESPCI, 10 rue Vauquelin, 75231 Paris Cedex 05, France, and European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
| | - Pierre Panine
- Laboratoire Matière Molle et Chimie (UMR ESPCI-CNRS 7167), ESPCI, 10 rue Vauquelin, 75231 Paris Cedex 05, France, and European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
| | - Ludwik Leibler
- Laboratoire Matière Molle et Chimie (UMR ESPCI-CNRS 7167), ESPCI, 10 rue Vauquelin, 75231 Paris Cedex 05, France, and European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
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Abstract
In this era of portability and rapid technological advances, polymers are more than ever under pressure to be cheap and offer tailored property profiles. Often, the key lies in designing blends and alloys carefully structured at the appropriate scale (preferably less than a micrometre) from existing polymers. Block copolymers - two or more different polymer chains linked together - have long been thought to offer the solution. Local segregation of the different polymer blocks yields molecular-scale aggregates of nanometre size. Recent progress in synthetic chemistry has unveiled unprecedented opportunities to prepare tailored block copolymers at reasonable cost. Over twenty years of intense academic research and the advent of powerful statistical theories and computational methods should help predict the equilibrium and even non-equilibrium behaviour of copolymers and their blends with other polymers. The gap between block copolymer self-assembly and affordable nanostructured plastics endowed with still-unexplored combinations of properties is getting narrower.
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Affiliation(s)
- Anne-Valérie Ruzette
- Laboratoire Matière Molle et Chimie, ESPCI-CNRS (UMR 167), ESPCI, 10 rue Vauquelin, 75005 Paris, France.
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