1
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Nowak SR, Tiwale N, Doerk GS, Nam CY, Black CT, Yager KG. Responsive blends of block copolymers stabilize the hexagonally perforated lamellae morphology. SOFT MATTER 2023; 19:2594-2604. [PMID: 36947412 DOI: 10.1039/d3sm00142c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Blends of block copolymers can form phases and exhibit features distinct from the constituent materials. We study thin film blends of cylinder-forming and lamellar-forming block copolymers across a range of substrate surface energies. Blend materials are responsive to interfacial energy, allowing selection of pure or coexisting phases based on surface chemistry. Blending stabilizes certain motifs that are typically metastable, and can be used to generate pure hexagonally perforated lamellar thin films across a range of film thicknesses and surface energies. This tolerant behavior is ascribed to the ability of blend materials to redistribute chains to stabilize otherwise high-energy defect structures. The blend responsiveness allows the morphology to be spatially defined through multi-tone chemical surface patterns.
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Affiliation(s)
- Samantha R Nowak
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.
| | - Nikhil Tiwale
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.
| | - Gregory S Doerk
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.
| | - Chang-Yong Nam
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.
| | - Charles T Black
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.
| | - Kevin G Yager
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.
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2
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Bae S, Yager KG. Chain Redistribution Stabilizes Coexistence Phases in Block Copolymer Blends. ACS NANO 2022; 16:17107-17115. [PMID: 36126176 DOI: 10.1021/acsnano.2c07448] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The nanoscale morphologies of block copolymer (BCP) thin films are determined by chain architecture. Experimental studies of thin film blends of different BCP chain types have demonstrated that blending can stabilize new motifs, such as coexistence phases. Here, we deploy coarse-grained molecular dynamics (MD) simulations in order to better understand the self-assembly behavior of BCP blend thin films. We consider blends of lamella- and cylinder-forming BCP chains, studying their morphological makeup, the chain distribution within the morphology, and the underlying polymer chain conformations. Our simulations show that there are local concentration deviations at the scale of the morphological objects that dictate the local structure, and that BCP chains redistribute within the morphology so as to stabilize the structure. Underlying these effects are measurable distortions in the BCP chain conformations. The conformational freedom afforded by BCP blending stabilizes defects and allows coexistence phases to appear, while also leading to kinetic trapping effects. These results highlight the power of blending in designing the morphology that forms.
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Affiliation(s)
- Suwon Bae
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Kevin G Yager
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
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3
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Controlling polymer molecular weight distributions by light through reversible addition‐fragmentation chain transfer‐hetero‐Diels–Alder click conjugation. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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4
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Rosenbloom SI, Hsu JH, Fors BP. Controlling the shape of the molecular weight distribution for tailored tensile and rheological properties in thermoplastics and thermoplastic elastomers. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210894] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Jesse H. Hsu
- Department of Chemistry and Chemical Biology Cornell University Ithaca New York USA
| | - Brett P. Fors
- Department of Chemistry and Chemical Biology Cornell University Ithaca New York USA
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5
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Zhang M, Li J, Chen M, Pan X, Zhang Z, Zhu J. Combination of the Photoinduced Atom Transfer Radical Addition Reaction and Living Cationic Polymerization: A Latent Initiator Strategy toward Tailoring Polymer Molecular Weight Distributions. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mengmeng Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jiajia Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Miao Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xiangqiang Pan
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhengbiao Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jian Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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6
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7
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Jia R, Tu Y, Glauber M, Huang Z, Xuan S, Zhang W, Zhou N, Li X, Zhang Z, Zhu X. Fine control of the molecular weight and polymer dispersity via a latent monomeric retarder. Polym Chem 2021. [DOI: 10.1039/d0py01569e] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A latent monomeric retarder was used for a one-shot polymerization with a defined MW and Đ.
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8
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Jangizehi A, Schmid F, Besenius P, Kremer K, Seiffert S. Defects and defect engineering in Soft Matter. SOFT MATTER 2020; 16:10809-10859. [PMID: 33306078 DOI: 10.1039/d0sm01371d] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Soft matter covers a wide range of materials based on linear or branched polymers, gels and rubbers, amphiphilic (macro)molecules, colloids, and self-assembled structures. These materials have applications in various industries, all highly important for our daily life, and they control all biological functions; therefore, controlling and tailoring their properties is crucial. One way to approach this target is defect engineering, which aims to control defects in the material's structure, and/or to purposely add defects into it to trigger specific functions. While this approach has been a striking success story in crystalline inorganic hard matter, both for mechanical and electronic properties, and has also been applied to organic hard materials, defect engineering is rarely used in soft matter design. In this review, we present a survey on investigations on defects and/or defect engineering in nine classes of soft matter composed of liquid crystals, colloids, linear polymers with moderate degree of branching, hyperbranched polymers and dendrimers, conjugated polymers, polymeric networks, self-assembled amphiphiles and proteins, block copolymers and supramolecular polymers. This overview proposes a promising role of this approach for tuning the properties of soft matter.
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Affiliation(s)
- Amir Jangizehi
- Johannes Gutenberg University Mainz, Department of Chemistry, Duesbergweg 10-14, D-55128 Mainz, Germany
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9
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Liu K, Corrigan N, Postma A, Moad G, Boyer C. A Comprehensive Platform for the Design and Synthesis of Polymer Molecular Weight Distributions. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01954] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ke Liu
- Centre for Advanced Macromolecular Design (CAMD) and School of Chemical Engineering, University of New South Wales (UNSW) Sydney, Sydney, NSW 2052, Australia
| | - Nathaniel Corrigan
- Centre for Advanced Macromolecular Design (CAMD) and School of Chemical Engineering, University of New South Wales (UNSW) Sydney, Sydney, NSW 2052, Australia
- Australian Centre for Nanomedicine (ACN) and School of Chemical Engineering, University of New South Wales (UNSW) Sydney, Sydney, NSW 2052, Australia
| | - Almar Postma
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
| | - Graeme Moad
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design (CAMD) and School of Chemical Engineering, University of New South Wales (UNSW) Sydney, Sydney, NSW 2052, Australia
- Australian Centre for Nanomedicine (ACN) and School of Chemical Engineering, University of New South Wales (UNSW) Sydney, Sydney, NSW 2052, Australia
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10
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Ahmadian I, Peters AJ. Phase behavior of AB/CD diblock copolymer blends via coarse-grained simulation. SOFT MATTER 2020; 16:3069-3081. [PMID: 32134101 DOI: 10.1039/d0sm00096e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The phase diagram of equimolar blends of AB and CD diblock copolymers has been studied using dissipative particle dynamics. All unlike blocks interacted with the same χ, except for the B-C interaction, for which χBC < 0 in order to prevent macrophase separation. The BC interaction was able to prevent macrophase separation except for low volume fractions of B and C (φBC⪅ 0.1) and relatively equal fractions of A and D. For high φBC (φBC⪆ 0.92), a disordered state was obtained. For all microphase separated states the shapes/morphologies were described by the ratios of the eigenvalues of the radius of gyration tensor and their sphericity. These were used to classify the domains as forming sphere, cylinders, lamellae, or branched/gyroidal structures. For φBC < 0.5 the BC domains acted as an interfacial region which compatibilized the A and D domains, while for φBC > 0.5 the BC domain filled in the space between A and D domains. Several interesting structures were formed including a novel connected/branched spheres morphology, hierarchical lamellae, concentric spheres/cylinders, and a combination of cylinders/lamellae. Comparisons are made with the linear diblock and linear triblock phase diagrams.
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Affiliation(s)
- Iman Ahmadian
- Louisiana Tech University, Institute for Micromanufacturing, P.O. Box 10137, Ruston, LA 71272, USA.
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11
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Lindsay AP, Lewis RM, Lee B, Peterson AJ, Lodge TP, Bates FS. A15, σ, and a Quasicrystal: Access to Complex Particle Packings via Bidisperse Diblock Copolymer Blends. ACS Macro Lett 2020; 9:197-203. [PMID: 35638682 DOI: 10.1021/acsmacrolett.9b01026] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A renewed focus on the phase behavior of nominally single-component, compositionally asymmetric diblock copolymers has revealed a host of previously unanticipated Frank-Kasper (FK) and quasicrystalline phases. However, these periodic and aperiodic particle packings have thus far only been reported in low molecular weight, highly conformationally asymmetric diblock copolymers, leaving researchers with a relatively small library of polymers in which these phases can be studied. In this work, we report on a simple approach to access these morphologies: blending two diblock copolymers with the same corona block length and varied core block lengths. Compositionally symmetric and asymmetric polystyrene-b-1,4-polybutadiene (SB) diblock copolymers with constant corona block lengths were blended together and shown via small-angle X-ray scattering and transmission electron microscopy to order into the FK A15 and σ phases, as well as a dodecagonal quasicrystal, providing a route to various particle packings in high molecular weight diblock copolymer melts.
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12
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Spinnrock A, Cölfen H. Control of Molar Mass Distribution by Polymerization in the Analytical Ultracentrifuge. Angew Chem Int Ed Engl 2018; 57:8284-8287. [DOI: 10.1002/anie.201713149] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/29/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Andreas Spinnrock
- Physical ChemistryUniversity of Konstanz Universitätsstrasse 10, Box 714 78457 Konstanz Germany
| | - Helmut Cölfen
- Physical ChemistryUniversity of Konstanz Universitätsstrasse 10, Box 714 78457 Konstanz Germany
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13
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Spinnrock A, Cölfen H. Kontrolle der Molmassenverteilung durch Polymerisation in der analytischen Ultrazentrifuge. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201713149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Andreas Spinnrock
- Physikalische ChemieUniversität Konstanz Universitätsstraße 10, Box 714 78457 Konstanz Deutschland
| | - Helmut Cölfen
- Physikalische ChemieUniversität Konstanz Universitätsstraße 10, Box 714 78457 Konstanz Deutschland
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14
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Fukuhara J, Yasui A, Yamamoto K, Sakurai S. Versatile Controls of Microdomain Morphologies and Temperature Dependencies in Lamellar Spacing by Blending Diblock Copolymers Bearing Antisymmetric Compositions. ACS OMEGA 2017; 2:8580-8590. [PMID: 31457391 PMCID: PMC6645656 DOI: 10.1021/acsomega.7b01075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 11/08/2017] [Indexed: 06/10/2023]
Abstract
The morphologies of the microphase-separated structures in the binary blends of diblock copolymers (AB/AB) have been studied intensively for the case of diblock copolymers bearing antisymmetric compositions with similar molecular weights. Here, the two diblock copolymers 1 and 2, of which compositions are 0.5 - x and 0.5 + x (0 < x < 0.5), respectively, were blended, and the morphology diagram was constructed in the plot of χZ vs the average composition of the A component, where χ is the interaction parameter between A and B segments and Z is the average degree of polymerization of the two AB diblock copolymers. The temperature-dependent morphologies were analyzed by synchrotron small-angle X-ray scattering (SAXS) measurements. It was found that the morphology diagram agrees in principle with the theoretical one for the neat AB diblocks by Matsen and Bates (Macromolecules 1996, 29, 1091-1098), although the disordered phase was a bit expanded in the experimentally determined morphology diagram. Anomalous temperature dependencies in the lamellar spacing have been also comprehensively studied for the binary blends of antisymmetric diblock copolymers as a function of the degree of compositional asymmetry by closely adjusting the average composition in the blend specimen at 0.50. For this purpose, more than 20 neat diblock copolymers have been synthesized with a wide range of compositions from 0.20 to 0.87 and a range of molecular weight of 12 000-33 800. The temperature dependencies of the lamellar spacing were also analyzed by synchrotron SAXS measurements. As a result, the following things were found. The scaling exponent α in D ∼ T α was still negative but slightly larger than the usual value (i.e., α = -0.33) for the smaller degree of asymmetry in the composition (i.e., x is small), while α became positive for the higher degree of asymmetry. The latter result is very anomalous because the temperature dependence is opposite (i.e., the lamellar spacing increases with an increase of temperature). The value of α was found to be linearly rationalized with the degree of asymmetry τ (which is especially introduced in the current paper for this purpose), for the binary blends with the average composition of 0.50. Based on this result, one can prepare lamellar microdomains, of which spacing does not change with temperature, by blending two diblock copolymers with τ = 1.33 (corresponding to 0.3 and 0.7 of compositions) having similar molecular weights. This would be important for manufacturing materials with properties (for instance, the optical property) independent of temperature. From the current study, the binary blends of the antisymmetric diblock copolymers are concluded to be versatile such that the precise controls of the morphologies and the temperature dependencies of the lamellar microdomains are plausible.
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Affiliation(s)
- Junji Fukuhara
- Department
of Biobased Materials Science, Kyoto Institute
of Technology, Matsugasaki, Sakyo-ku,
Kyoto 606-8585, Japan
| | - Akifumi Yasui
- Department
of Biobased Materials Science, Kyoto Institute
of Technology, Matsugasaki, Sakyo-ku,
Kyoto 606-8585, Japan
| | - Katsuhiro Yamamoto
- Department
of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
- Frontier
Research Institute for Materials Science, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Shinichi Sakurai
- Department
of Biobased Materials Science, Kyoto Institute
of Technology, Matsugasaki, Sakyo-ku,
Kyoto 606-8585, Japan
- Institute
of Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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15
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Corrigan N, Almasri A, Taillades W, Xu J, Boyer C. Controlling Molecular Weight Distributions through Photoinduced Flow Polymerization. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01890] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nathaniel Corrigan
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical
Engineering, and ‡Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia
| | - Abdulrahman Almasri
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical
Engineering, and ‡Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia
| | - Werner Taillades
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical
Engineering, and ‡Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia
| | - Jiangtao Xu
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical
Engineering, and ‡Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia
| | - Cyrille Boyer
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical
Engineering, and ‡Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia
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16
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Nallet F. Scattering studies in self-organised diblock copolymer systems. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4082-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Radjabian M, Abetz C, Fischer B, Meyer A, Lademann B, Abetz V. Structure Formation of Binary Blends of Amphiphilic Block Copolymers in Solution and in Bulk. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201600587] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maryam Radjabian
- Institute of Polymer Research; Helmholtz-Zentrum Geesthacht; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Clarissa Abetz
- Institute of Polymer Research; Helmholtz-Zentrum Geesthacht; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Birgit Fischer
- Institute of Physical Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Andreas Meyer
- Institute of Physical Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Brigitte Lademann
- Institute of Polymer Research; Helmholtz-Zentrum Geesthacht; Max-Planck-Str. 1 21502 Geesthacht Germany
| | - Volker Abetz
- Institute of Polymer Research; Helmholtz-Zentrum Geesthacht; Max-Planck-Str. 1 21502 Geesthacht Germany
- Institute of Physical Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
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18
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Majewski PW, Yager KG. Rapid ordering of block copolymer thin films. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:403002. [PMID: 27537062 DOI: 10.1088/0953-8984/28/40/403002] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Block-copolymers self-assemble into diverse morphologies, where nanoscale order can be finely tuned via block architecture and processing conditions. However, the ultimate usage of these materials in real-world applications may be hampered by the extremely long thermal annealing times-hours or days-required to achieve good order. Here, we provide an overview of the fundamentals of block-copolymer self-assembly kinetics, and review the techniques that have been demonstrated to influence, and enhance, these ordering kinetics. We discuss the inherent tradeoffs between oven annealing, solvent annealing, microwave annealing, zone annealing, and other directed self-assembly methods; including an assessment of spatial and temporal characteristics. We also review both real-space and reciprocal-space analysis techniques for quantifying order in these systems.
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Affiliation(s)
- Pawel W Majewski
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, USA. Department of Chemistry, University of Warsaw, Warsaw, Poland
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19
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Stein A, Wright G, Yager KG, Doerk GS, Black CT. Selective directed self-assembly of coexisting morphologies using block copolymer blends. Nat Commun 2016; 7:12366. [PMID: 27480327 PMCID: PMC4974660 DOI: 10.1038/ncomms12366] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 06/24/2016] [Indexed: 11/25/2022] Open
Abstract
Directed self-assembly (DSA) of block copolymers is an emergent technique for nano-lithography, but is limited in the range of structures possible in a single fabrication step. Here we expand on traditional DSA chemical patterning. A blend of lamellar- and cylinder-forming block copolymers assembles on specially designed surface chemical line gratings, leading to the simultaneous formation of coexisting ordered morphologies in separate areas of the substrate. The competing energetics of polymer chain distortions and chemical mismatch with the substrate grating bias the system towards either line/space or dot array patterns, depending on the pitch and linewidth of the prepattern. This is in contrast to the typical DSA, wherein assembly of a single-component block copolymer on chemical templates generates patterns of either lines/spaces (lamellar) or hexagonal dot arrays (cylinders). In our approach, the chemical template encodes desired local spatial arrangements of coexisting design motifs, self-assembled from a single, sophisticated resist. There is a limited range of structures available in nanolithography using directed self-assembled block copolymers. Here, Black and co-workers expand directed self-assembly chemical patterning by using a blend of lamellar and cylinder forming block copolymers on surface chemical line gratings.
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Affiliation(s)
- A Stein
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G Wright
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - K G Yager
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - G S Doerk
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - C T Black
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
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20
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Gentekos DT, Dupuis LN, Fors BP. Beyond Dispersity: Deterministic Control of Polymer Molecular Weight Distribution. J Am Chem Soc 2016; 138:1848-51. [DOI: 10.1021/jacs.5b13565] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Brett P. Fors
- Cornell University, Ithaca, New York 14853, United States
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21
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Choo Y, Hu H, Toth K, Osuji CO. Sequential deposition of block copolymer thin films and formation of lamellar heterolattices by electrospray deposition. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/polb.23913] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Youngwoo Choo
- Department of Chemical and Environmental Engineering; Yale University; Connecticut 06511 New Haven
| | - Hanqiong Hu
- Department of Chemical and Environmental Engineering; Yale University; Connecticut 06511 New Haven
| | - Kristof Toth
- Department of Chemical and Environmental Engineering; Yale University; Connecticut 06511 New Haven
| | - Chinedum O. Osuji
- Department of Chemical and Environmental Engineering; Yale University; Connecticut 06511 New Haven
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22
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Abetz V. Isoporous block copolymer membranes. Macromol Rapid Commun 2014; 36:10-22. [PMID: 25451792 DOI: 10.1002/marc.201400556] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 11/06/2014] [Indexed: 11/06/2022]
Abstract
The developments in membranes based on tailored block copolymers are reported with an emphasis on isoporous membranes. These membranes can be prepared in different geometries, namely flat sheets and hollow fibers. They display narrow pore size distributions due to their formation by self-assembly. The preparation of these membranes and possibilities to further functionalize such membranes will be discussed. Different ways to control the pore size will be addressed, and the potential of block copolymer blends to fabricate membranes with tailored pore sizes will be shown.
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Affiliation(s)
- Volker Abetz
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Str. 1, 21502, Geesthacht, Germany
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23
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Yager KG, Lai E, Black CT. Self-assembled phases of block copolymer blend thin films. ACS NANO 2014; 8:10582-10588. [PMID: 25285733 DOI: 10.1021/nn504977r] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The patterns formed by self-assembled thin films of blended cylindrical and lamellar polystyrene-b-poly(methyl methacrylate) block copolymers can be either a spatially uniform, single type of nanostructure or separate, coexisting regions of cylinders and lamellae, depending on fractional composition and molecular weight ratio of the blend constituents. In blends of block copolymers with different molecular weights, the morphology of the smaller molecular weight component more strongly dictates the resulting pattern. Although molecular scale chain mixing distorts microdomain characteristic length scales from those of the pure components, even coexisting morphologies exhibit the same domain spacing. We quantitatively account for the phase behavior of thin-film blends of cylinders and lamellae using a physical, thermodynamic model balancing the energy of chain distortions with the entropy of mixing.
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Affiliation(s)
- Kevin G Yager
- Center for Functional Nanomaterials, Brookhaven National Laboratory , Upton, New York 11973, United States
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Spiro JG, Illy N, Winnik MA, Vavasour JD, Whitmore MD. Theory of Lamellar Superstructure from a Mixture of Two Cylindrical PS–PMMA Block Copolymers. Macromolecules 2012. [DOI: 10.1021/ma202717p] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John G. Spiro
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto,
Ontario M5S 3H6, Canada
| | - Nicolas Illy
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto,
Ontario M5S 3H6, Canada
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto,
Ontario M5S 3H6, Canada
| | - Jeffrey D. Vavasour
- Department of Physics and Astronomy, University of Manitoba, 186 Dysart Road, Winnipeg,
Manitoba R2M 5C6, Canada
| | - Mark D. Whitmore
- Department of Physics and Astronomy, University of Manitoba, 186 Dysart Road, Winnipeg,
Manitoba R2M 5C6, Canada
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Zhang X, Murphy JN, Wu NLY, Harris KD, Buriak JM. Rapid Assembly of Nanolines with Precisely Controlled Spacing from Binary Blends of Block Copolymers. Macromolecules 2011. [DOI: 10.1021/ma202064t] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaojiang Zhang
- National Institute for Nanotechnology (NINT), National Research Council, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Jeffrey N. Murphy
- National Institute for Nanotechnology (NINT), National Research Council, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Nathanael L. Y. Wu
- National Institute for Nanotechnology (NINT), National Research Council, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G 2G8, Canada
| | - Kenneth D. Harris
- National Institute for Nanotechnology (NINT), National Research Council, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada
| | - Jillian M. Buriak
- National Institute for Nanotechnology (NINT), National Research Council, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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Meuler AJ, Ellison CJ, Qin J, Evans CM, Hillmyer MA, Bates FS. Polydispersity effects in poly(isoprene-b-styrene-b-ethylene oxide) triblock terpolymers. J Chem Phys 2009; 130:234903. [DOI: 10.1063/1.3140205] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mickiewicz RA, Ntoukas E, Avgeropoulos A, Thomas EL. Phase Behavior of Binary Blends of High Molecular Weight Diblock Copolymers with a Low Molecular Weight Triblock. Macromolecules 2008. [DOI: 10.1021/ma801022k] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rafal A. Mickiewicz
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, and Department of Materials Science and Engineering, University of Ioannina, University Campus−Dourouti, Ioannina 45110, Greece
| | - Eleftherios Ntoukas
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, and Department of Materials Science and Engineering, University of Ioannina, University Campus−Dourouti, Ioannina 45110, Greece
| | - Apostolos Avgeropoulos
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, and Department of Materials Science and Engineering, University of Ioannina, University Campus−Dourouti, Ioannina 45110, Greece
| | - Edwin L. Thomas
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, and Department of Materials Science and Engineering, University of Ioannina, University Campus−Dourouti, Ioannina 45110, Greece
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Chen F, Kondo Y, Hashimoto T. Control of Nanostructure in Mixtures of Block Copolymers: Curvature Control via Cosurfactant Effects. Macromolecules 2007. [DOI: 10.1021/ma070297m] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Feng Chen
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan, and Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai-Mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Yoshiro Kondo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan, and Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai-Mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Takeji Hashimoto
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan, and Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai-Mura, Naka-gun, Ibaraki 319-1195, Japan
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Satapathy BK, Staudinger U, Thunga M, Lach R, Weidisch R. Influence of Phase Miscibility on the Crack Propagation Kinetics of Nanostructured Binary S-(S/B)-S Triblock Copolymer Blends. Macromol Rapid Commun 2006. [DOI: 10.1002/marc.200600505] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Daoulas KC, Theodorou DN, Roos A, Creton C. Experimental and Self-Consistent-Field Theoretical Study of Styrene Block Copolymer Self-Adhesive Materials. Macromolecules 2004. [DOI: 10.1021/ma035383a] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Wu L, Cochran EW, Lodge TP, Bates FS. Consequences of Block Number on the Order−Disorder Transition and Viscoelastic Properties of Linear (AB)n Multiblock Copolymers. Macromolecules 2004. [DOI: 10.1021/ma035583m] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lifeng Wu
- Department of Chemical Engineering and Materials Science and Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455
| | - Eric W. Cochran
- Department of Chemical Engineering and Materials Science and Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455
| | - Timothy P. Lodge
- Department of Chemical Engineering and Materials Science and Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455
| | - Frank S. Bates
- Department of Chemical Engineering and Materials Science and Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455
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Adhikari R, Michler GH, Henning S, Godehardt R, Huy TA, Goerlitz S, Knoll K. Morphology and micromechanical deformation behavior of styrene-butadiene block copolymers. IV. Structure-property correlation in binary block copolymer blends. J Appl Polym Sci 2004. [DOI: 10.1002/app.20126] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Affiliation(s)
- Koray Yurekli
- Department of Chemical Engineering, University of Houston, Houston, Texas 77204-4004
| | - Ramanan Krishnamoorti
- Department of Chemical Engineering, University of Houston, Houston, Texas 77204-4004
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36
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Court F, Hashimoto T. Morphological Studies of Binary Mixtures of Block Copolymers. 2. Chain Organization of Long and Short Blocks in Lamellar Microdomains and Its Effect on Domain Size and Stability. Macromolecules 2002. [DOI: 10.1021/ma011588c] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- François Court
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan, and Laboratoire de Physico-Chimie Structurale et Macromoléculaire, ESPCI, 10 rue Vauquelin, 75005 Paris, France
| | - Takeji Hashimoto
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan, and Laboratoire de Physico-Chimie Structurale et Macromoléculaire, ESPCI, 10 rue Vauquelin, 75005 Paris, France
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37
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Yamaguchi D, Hasegawa H, Hashimoto T. A Phase Diagram for the Binary Blends of Nearly Symmetric Diblock Copolymers. 2. Parameter Space of Temperature and Blend Composition. Macromolecules 2001. [DOI: 10.1021/ma0021491] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daisuke Yamaguchi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Hirokazu Hasegawa
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Takeji Hashimoto
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
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38
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Court F, Hashimoto T. Morphological Studies of Binary Mixtures of Block Copolymers. 1. Cosurfactant Effects and Composition Dependence of Morphology. Macromolecules 2001. [DOI: 10.1021/ma001314+] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Yamaguchi D, Takenaka M, Hasegawa H, Hashimoto T. Macro- and Microphase Transitions in Binary Blends of Block Copolymers with Complementarily Asymmetric Compositions. Macromolecules 2001. [DOI: 10.1021/ma0013152] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daisuke Yamaguchi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Mikihito Takenaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Hirokazu Hasegawa
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Takeji Hashimoto
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
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40
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Yamaguchi D, Shiratake S, Hashimoto T. Ordered Structure in Blends of Block Copolymers. 5. Blends of Lamella-Forming Block Copolymers Showing both Microphase Separation Involving Unique Morphological Transitions and Macrophase Separation. Macromolecules 2000. [DOI: 10.1021/ma000827d] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daisuke Yamaguchi
- Department of Polymer Chemistry,Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Shuntaro Shiratake
- Department of Polymer Chemistry,Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Takeji Hashimoto
- Department of Polymer Chemistry,Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
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41
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Okumura A, Tsutsumi K, Hashimoto T. Nanohybrids of Metal Nanoparticles and Block Copolymers. Control of Spatial Distribution of the Nanoparticles in Microdomain Space. Polym J 2000. [DOI: 10.1295/polymj.32.520] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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Goedel WA, Luap C, Oeser R, Lang P, Braun C, Steitz R. Stratification in Monolayers of a Bidisperse Melt Polymer Brush As Revealed by Neutron Reflectivity. Macromolecules 1999. [DOI: 10.1021/ma981900r] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Werner A. Goedel
- Max-Planck Institut für Kolloid- & Grenzflächenforschung, Rudower Chaussee 5, 12489 Berlin, Germany; Hahn-Meitner-Institut Berlin, Glienicker Strasse 100, 14109 Berlin, Germany; and I.-N.-Stranski-Institut für Physikalische & Theoretische Chemie, Technische Universität Berlin, Strasse des 17 Juni, 10623 Berlin, Germany
| | - Clarisse Luap
- Max-Planck Institut für Kolloid- & Grenzflächenforschung, Rudower Chaussee 5, 12489 Berlin, Germany; Hahn-Meitner-Institut Berlin, Glienicker Strasse 100, 14109 Berlin, Germany; and I.-N.-Stranski-Institut für Physikalische & Theoretische Chemie, Technische Universität Berlin, Strasse des 17 Juni, 10623 Berlin, Germany
| | - Ralf Oeser
- Max-Planck Institut für Kolloid- & Grenzflächenforschung, Rudower Chaussee 5, 12489 Berlin, Germany; Hahn-Meitner-Institut Berlin, Glienicker Strasse 100, 14109 Berlin, Germany; and I.-N.-Stranski-Institut für Physikalische & Theoretische Chemie, Technische Universität Berlin, Strasse des 17 Juni, 10623 Berlin, Germany
| | - Peter Lang
- Max-Planck Institut für Kolloid- & Grenzflächenforschung, Rudower Chaussee 5, 12489 Berlin, Germany; Hahn-Meitner-Institut Berlin, Glienicker Strasse 100, 14109 Berlin, Germany; and I.-N.-Stranski-Institut für Physikalische & Theoretische Chemie, Technische Universität Berlin, Strasse des 17 Juni, 10623 Berlin, Germany
| | - Christian Braun
- Max-Planck Institut für Kolloid- & Grenzflächenforschung, Rudower Chaussee 5, 12489 Berlin, Germany; Hahn-Meitner-Institut Berlin, Glienicker Strasse 100, 14109 Berlin, Germany; and I.-N.-Stranski-Institut für Physikalische & Theoretische Chemie, Technische Universität Berlin, Strasse des 17 Juni, 10623 Berlin, Germany
| | - Roland Steitz
- Max-Planck Institut für Kolloid- & Grenzflächenforschung, Rudower Chaussee 5, 12489 Berlin, Germany; Hahn-Meitner-Institut Berlin, Glienicker Strasse 100, 14109 Berlin, Germany; and I.-N.-Stranski-Institut für Physikalische & Theoretische Chemie, Technische Universität Berlin, Strasse des 17 Juni, 10623 Berlin, Germany
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43
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Yamaguchi D, Bodycomb J, Koizumi S, Hashimoto T. Ordered Structure in Blends of Block Copolymers. 4. Location of the Short Diblock. Macromolecules 1999. [DOI: 10.1021/ma990534o] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daisuke Yamaguchi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan, and Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1112, Japan
| | - Jeffrey Bodycomb
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan, and Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1112, Japan
| | - Satoshi Koizumi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan, and Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1112, Japan
| | - Takeji Hashimoto
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan, and Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1112, Japan
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44
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Koneripalli N, Levicky R, Bates FS, Matsen MW, Satija SK, Ankner J, Kaiser H. Ordering in Blends of Diblock Copolymers. Macromolecules 1998. [DOI: 10.1021/ma971229a] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | - Mark W. Matsen
- Polymer Science Centre, University of Reading, Whiteknights, Reading RG6 6AF, U.K
| | - Sushil K. Satija
- Reactor Radiation Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
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45
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Suh KY, Kim YS, Lee HH. Parallel and vertical morphologies in block copolymers of cylindrical domain. J Chem Phys 1998. [DOI: 10.1063/1.475487] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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46
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Sakurai S, Umeda H, Yoshida A, Nomura S. Anomalous Temperature Behavior of Lamellar Microdomain Structures in Binary Blends of Polystyrene-block-polyisoprene Diblock Copolymers. Macromolecules 1997. [DOI: 10.1021/ma970132l] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shinichi Sakurai
- Department of Polymer Science and Engineering, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606, Japan
| | - Hideo Umeda
- Department of Polymer Science and Engineering, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606, Japan
| | - Akio Yoshida
- Department of Polymer Science and Engineering, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606, Japan
| | - Shunji Nomura
- Department of Polymer Science and Engineering, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606, Japan
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47
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Sakurai S, Nomura S. Phase behaviour in binary mixtures of diblock copolymers as analysed by the random phase approximation calculations. POLYMER 1997. [DOI: 10.1016/s0032-3861(96)00989-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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48
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Tcherkasskaya O, Ni S, Winnik MA. Energy Transfer Studies of Binary Block Copolymer Blends. 1. Effect of Composition on the Interface Area per Chain and the Lamellar Size. Macromolecules 1997. [DOI: 10.1021/ma9612891] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Olga Tcherkasskaya
- Department of Chemistry and Erindale College, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 1A1
| | - Shaoru Ni
- Department of Chemistry and Erindale College, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 1A1
| | - Mitchell A. Winnik
- Department of Chemistry and Erindale College, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 1A1
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49
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Kane L, Satkowski MM, Smith SD, Spontak RJ. Phase Behavior and Morphological Characteristics of Compositionally Symmetric Diblock Copolymer Blends. Macromolecules 1996. [DOI: 10.1021/ma9613291] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lisaleigh Kane
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, and Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239
| | - Michael M. Satkowski
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, and Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239
| | - Steven D. Smith
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, and Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239
| | - Richard J. Spontak
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27695, and Corporate Research Division, The Procter & Gamble Company, Cincinnati, Ohio 45239
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Tselikas Y, Iatrou H, Hadjichristidis N, Liang KS, Mohanty K, Lohse DJ. Morphology of miktoarm star block copolymers of styrene and isoprene. J Chem Phys 1996. [DOI: 10.1063/1.472113] [Citation(s) in RCA: 95] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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