1
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Sytu MRC, Cho DH, Hahm JI. Self-Assembled Block Copolymers as a Facile Pathway to Create Functional Nanobiosensor and Nanobiomaterial Surfaces. Polymers (Basel) 2024; 16:1267. [PMID: 38732737 PMCID: PMC11085100 DOI: 10.3390/polym16091267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
Block copolymer (BCP) surfaces permit an exquisite level of nanoscale control in biomolecular assemblies solely based on self-assembly. Owing to this, BCP-based biomolecular assembly represents a much-needed, new paradigm for creating nanobiosensors and nanobiomaterials without the need for costly and time-consuming fabrication steps. Research endeavors in the BCP nanobiotechnology field have led to stimulating results that can promote our current understanding of biomolecular interactions at a solid interface to the never-explored size regimes comparable to individual biomolecules. Encouraging research outcomes have also been reported for the stability and activity of biomolecules bound on BCP thin film surfaces. A wide range of single and multicomponent biomolecules and BCP systems has been assessed to substantiate the potential utility in practical applications as next-generation nanobiosensors, nanobiodevices, and biomaterials. To this end, this Review highlights pioneering research efforts made in the BCP nanobiotechnology area. The discussions will be focused on those works particularly pertaining to nanoscale surface assembly of functional biomolecules, biomolecular interaction properties unique to nanoscale polymer interfaces, functionality of nanoscale surface-bound biomolecules, and specific examples in biosensing. Systems involving the incorporation of biomolecules as one of the blocks in BCPs, i.e., DNA-BCP hybrids, protein-BCP conjugates, and isolated BCP micelles of bioligand carriers used in drug delivery, are outside of the scope of this Review. Looking ahead, there awaits plenty of exciting research opportunities to advance the research field of BCP nanobiotechnology by capitalizing on the fundamental groundwork laid so far for the biomolecular interactions on BCP surfaces. In order to better guide the path forward, key fundamental questions yet to be addressed by the field are identified. In addition, future research directions of BCP nanobiotechnology are contemplated in the concluding section of this Review.
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Affiliation(s)
- Marion Ryan C. Sytu
- Department of Chemistry, Georgetown University, 37th & O Sts. NW., Washington, DC 20057, USA
| | - David H. Cho
- National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, USA;
| | - Jong-in Hahm
- Department of Chemistry, Georgetown University, 37th & O Sts. NW., Washington, DC 20057, USA
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2
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Singh J, Gupta S, Chokshi P. Confinement-induced self-assembly of a diblock copolymer within a non-uniform cylindrical nanopore. SOFT MATTER 2024; 20:1543-1553. [PMID: 38268494 DOI: 10.1039/d3sm01348k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
The self-assembly of a diblock copolymer melt confined within a non-uniform cylindrical nanopore is studied using the self-consistent field theory. The non-uniformity manifests in the form of a converging-diverging cylindrical nanopore. The axial variation in pore diameter presents a range of curvatures within the same confinement pore as opposed to a single curvature in a uniform-diameter cylindrical pore. The introduction of multiple curvatures leads to the formation of novel microstructures not accessible in uniform cylindrical confinement. The well-known equilibrium structures like a single helix, double helices, and concentric lamella under cylindrical confinement transition into new morphologies such as hyperboloidal phases, microstructures containing rings with a bead, rings with spheres, and a squeezed helical phase as the pore diameter varies axially. The converging-diverging geometry of the confining pore renders the helical phases seen in the cylindrical pore less favorable. A phase diagram in the parametric space of the block fraction and the ratio of the smallest and largest pore radii has been constructed to depict the order-order transition of various microstructures. The ratio of radii, a measure of the non-uniformity of the pore, along with the pore length brings out some interesting morphologies. The mechanism of these structural transitions is understood as the interplay between the variation in pore curvature attributed to the non-uniformity, the spontaneous curvature of the block copolymer interface, and the enthalpic interaction between the segregated blocks.
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Affiliation(s)
- Jagat Singh
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi 110 016, India.
| | - Supriya Gupta
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi 110 016, India.
| | - Paresh Chokshi
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi 110 016, India.
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3
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Liu Z, Liu YX, Yang Y, Li J. Template Design for Complex Block Copolymer Patterns Using a Machine Learning Method. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37335810 DOI: 10.1021/acsami.3c05018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
This study represents the first attempt to address the inverse design problem of the guiding template for directed self-assembly (DSA) patterns using solely machine learning methods. By formulating the problem as a multi-label classification task, the study shows that it is possible to predict templates without requiring any forward simulations. A series of neural network (NN) models, ranging from the basic two-layer convolutional neural network (CNN) to the large NN models (32-layer CNN with 8 residual blocks), have been trained using simulated pattern samples generated by thousands of self-consistent field theory (SCFT) calculations; a number of augmentation techniques, especially suitable for predicting morphologies, have been also proposed to enhance the performance of the NN model. The exact match accuracy of the model in predicting the template of simulated patterns was significantly improved from 59.8% for the baseline model to 97.1% for the best model of this study. The best model also demonstrates an excellent generalization ability in predicting the template for human-designed DSA patterns, while the simplest baseline model is ineffective in this task.
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Affiliation(s)
- Zhihan Liu
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yi-Xin Liu
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yuliang Yang
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Jianfeng Li
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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4
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Huo H, Zhao W, Duan X, Sun ZY. Control of Diblock Copolyelectrolyte Morphology through Electric Field Application. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c01780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Haiyang Huo
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei230026, China
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun130022, China
| | - Wanchen Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun130022, China
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun130012, China
| | - Xiaozheng Duan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun130022, China
| | - Zhao-Yan Sun
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei230026, China
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun130022, China
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matters, College of Physical Science and Technology, Yili Normal University, Yining835000, China
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5
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Shi Q, Zou J, Pan C, Fu Y, Supty MN, Sun J, Yi C, Hu J, Tan H. Study of the phase-transition behavior of (AB) 3 type star polystyrene- block-poly( n-butylacrylate) copolymers by the combination of rheology and SAXS. E-POLYMERS 2022. [DOI: 10.1515/epoly-2022-0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
A series of three-armed star polystyrene-block-poly(n-butylacrylate) copolymers (PS-b-PBA)3 were synthesized to study the phase-transition behavior of the copolymers. The order-to-disorder transition temperature has been determined by oscillatory at different temperatures and dynamic temperature sweep at a fixed frequency. Moreover, the micro-phase separation in the block copolymers has been evaluated by time–temperature superposition, while the free volume and the active energy of the copolymers have been calculated. Interestingly, active energy decreased with the increase in the molecular weight of the PBA components. To further determine the order-to-disorder transition temperature precisely, small angle X-ray scattering was performed at different temperatures. These results confirm that the chain mobility of the star-shaped copolymers is strongly dependent on the arm molecular weight of the star polymers, which will be beneficial for the processing and material preparation of the block copolymers.
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Affiliation(s)
- Qingwen Shi
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Jiaqi Zou
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Chen Pan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Yin Fu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Mahfzun Nahar Supty
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Jiuxiao Sun
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Chunlong Yi
- China CAMA Engineering Wuhan University Design & Research Company Limited (Camce Whu Design & Research Co., Ltd) , Wuhan , 430000 , China
| | - Jingchuan Hu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Haiying Tan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
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6
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Angelopoulou PP, Moutsios I, Manesi GM, Ivanov DA, Sakellariou G, Avgeropoulos A. Designing high χ copolymer materials for nanotechnology applications: A systematic bulk vs. thin films approach. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Shi X, Bobrin VA, Yao Y, Zhang J, Corrigan N, Boyer C. Designing Nanostructured 3D Printed Materials by Controlling Macromolecular Architecture. Angew Chem Int Ed Engl 2022; 61:e202206272. [PMID: 35732587 PMCID: PMC9544629 DOI: 10.1002/anie.202206272] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Indexed: 11/23/2022]
Abstract
Nanostructured polymeric materials play important roles in many advanced applications, however, controlling the morphologies of polymeric thermosets remains a challenge. This work uses multi-arm macroCTAs to mediate polymerization-induced microphase separation (PIMS) and prepare nanostructured materials via photoinduced 3D printing. The characteristic length scale of microphase-separated domains is determined by the macroCTA arm length, while nanoscale morphologies are controlled by the macroCTA architecture. Specifically, using 2- and 4- arm macroCTAs provides materials with different morphologies compared to analogous monofunctional linear macroCTAs at similar compositions. The mechanical properties of these nanostructured thermosets can also be tuned while maintaining the desired morphologies. Using multi-arm macroCTAs can thus broaden the scope of accessible nanostructures for extended applications, including the fabrication of actuators and potential drug delivery devices.
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Affiliation(s)
- Xiaobing Shi
- Cluster for Advanced Macromolecular Design and Australian Centre for NanomedicineSchool of Chemical EngineeringUniversity of New South WalesSydneyNSW 2052Australia
| | - Valentin A. Bobrin
- Cluster for Advanced Macromolecular Design and Australian Centre for NanomedicineSchool of Chemical EngineeringUniversity of New South WalesSydneyNSW 2052Australia
| | - Yin Yao
- Electron Microscope UnitMark Wainwright Analytical CentreUniversity of New South WalesSydneyNSW 2052Australia
| | - Jin Zhang
- School of Mechanical and Manufacturing EngineeringUniversity of New South WalesSydneyNSW 2052Australia
| | - Nathaniel Corrigan
- Cluster for Advanced Macromolecular Design and Australian Centre for NanomedicineSchool of Chemical EngineeringUniversity of New South WalesSydneyNSW 2052Australia
| | - Cyrille Boyer
- Cluster for Advanced Macromolecular Design and Australian Centre for NanomedicineSchool of Chemical EngineeringUniversity of New South WalesSydneyNSW 2052Australia
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8
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Shi X, Bobrin VA, Yao Y, Zhang J, Corrigan N, Boyer CAJM. Designing Nanostructured 3D Printed Materials by Controlling Macromolecular Architecture. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaobing Shi
- UNSW: University of New South Wales Chemical Engineering 2031 Sydney AUSTRALIA
| | - Valentin A. Bobrin
- UNSW: University of New South Wales Chemical Engineering School of Chemical Engineering 2031 Sydney AUSTRALIA
| | - Yin Yao
- UNSW: University of New South Wales Mark Wainwright Analytical Centre 2031 Sydney AUSTRALIA
| | - Jin Zhang
- UNSW: University of New South Wales School of Mechanical and Manufacturing Engineering 2031 Sydney AUSTRALIA
| | - Nathaniel Corrigan
- UNSW: University of New South Wales School of Chemical Engineering UNSWSchool of Chemical Engineering 2031 Sydney AUSTRALIA
| | - Cyrille Andre Jean Marie Boyer
- University of New South Wales Chemical Engineering and Australian Centre for Nanomedicine and Centre for Advanced Macromolecular Design High streetApplied science building 2052 Sydney AUSTRALIA
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9
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Steube M, Johann T, Barent RD, Müller AH, Frey H. Rational design of tapered multiblock copolymers for thermoplastic elastomers. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2021.101488] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Mayer A, Steinle D, Passerini S, Bresser D. Block copolymers as (single-ion conducting) lithium battery electrolytes. NANOTECHNOLOGY 2021; 33:062002. [PMID: 34624873 DOI: 10.1088/1361-6528/ac2e21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
Solid-state batteries are considered the next big step towards the realization of intrinsically safer high-energy lithium batteries for the steadily increasing implementation of this technology in electronic devices and particularly, electric vehicles. However, so far only electrolytes based on poly(ethylene oxide) have been successfully commercialized despite their limited stability towards oxidation and low ionic conductivity at room temperature. Block copolymer (BCP) electrolytes are believed to provide significant advantages thanks to their tailorable properties. Thus, research activities in this field have been continuously expanding in recent years with great progress to enhance their performance and deepen the understanding towards the interplay between their chemistry, structure, electrochemical properties, and charge transport mechanism. Herein, we review this progress with a specific focus on the block-copolymer nanostructure and ionic conductivity, the latest works, as well as the early studies that are fr"equently overlooked by researchers newly entering this field. Moreover, we discuss the impact of adding a lithium salt in comparison to single-ion conducting BCP electrolytes along with the encouraging features of these materials and the remaining challenges that are yet to be solved.
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Affiliation(s)
- Alexander Mayer
- Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, D-89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), PO Box 3640, D-76021 Karlsruhe, Germany
| | - Dominik Steinle
- Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, D-89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), PO Box 3640, D-76021 Karlsruhe, Germany
| | - Stefano Passerini
- Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, D-89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), PO Box 3640, D-76021 Karlsruhe, Germany
| | - Dominic Bresser
- Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, D-89081 Ulm, Germany
- Karlsruhe Institute of Technology (KIT), PO Box 3640, D-76021 Karlsruhe, Germany
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11
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Liffland S, Hillmyer MA. Enhanced Mechanical Properties of Aliphatic Polyester Thermoplastic Elastomers through Star Block Architectures. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01357] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Stephanie Liffland
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Marc A. Hillmyer
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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12
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Yu B, Li R, Segalman RA. Tuning the Double Gyroid Phase Window in Block Copolymers via Polymer Chain Conformation Near the Interface. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00048] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Beihang Yu
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Ruipeng Li
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Rachel A. Segalman
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
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13
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Zhang Y, Qian M, Hu W, Xu Y. Enlarged Phase Regions of Multi-Continuous 3D Network Nanostructures in ABC Triblock Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:6322-6329. [PMID: 33979159 DOI: 10.1021/acs.langmuir.1c00856] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Aiming to increase the stability region of three-dimensional (3D) multi-continuous morphologies due to great potential application in smart sensors, gas separation membranes, and photonic materials, in this paper, we control the block ratio of different channels of an ABC triblock copolymer according to the curvature of these multi-continuous nanostructures. In the small A volume fraction region, the multi-continuous gyroid nanostructure is stable when fB/fC equals 1/3, while two-domain lamellae (LB/C) and three-layer lamellae (L3) are obtained when B and C blocks have comparable volume fractions, suggesting that changing the fB/fC ratio is an effective way of forming multi-continuous polymer network nanostructures. Interestingly, a large phase region of the core-shell gyroid and O70 are found under the condition of fB/fC = 4. The mechanism of changing the ratio to enlarge the phase regimes of multi-continuous nanostructures can be ascribed to the existence of curvature in gyroid and O70 nanostructures. Therefore, the formed thin layer must be consistent with these curvatures, which can be tuned by the adjustment of the block ratio. The proposed mechanism and the calculated phase diagram can effectively guide the experimental observation of these multi-continuous nanostructures.
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Affiliation(s)
- Yangjin Zhang
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Mingshuang Qian
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Weiguo Hu
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Yuci Xu
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
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14
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Takagi H, Yamamoto K. Effect of Block Copolymer Composition and Homopolymer Molecular Weight on Ordered Bicontinuous Double-Diamond Structures in Binary Blends of Polystyrene–Polyisoprene Block Copolymer and Polyisoprene Homopolymer. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hideaki Takagi
- Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- Department of Materials Structure Science, School of High Energy Accelerator Science, SOKENDAI (the Graduate University for Advanced Studies), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Katsuhiro Yamamoto
- Graduate School of Engineering, Department of Life Science & Applied Chemistry, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555 Japan
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15
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Shi W. Scattering Function and Spinodal Transition of Linear and Nonlinear Block Copolymers Based on a Unified Molecular Model. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2544-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Li W, Liu YX. Simplicity in mean-field phase behavior of two-component miktoarm star copolymers. J Chem Phys 2021; 154:014903. [PMID: 33412874 DOI: 10.1063/5.0037979] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Using self-consistent field theory, we systematically explore the microphase separation in the class of two-component miktoarm star copolymers containing a single conjunction point between different blocks by considering an extended list of candidate microphases. We plot mean-field phase diagrams in the plane of segregation strength and composition for an array of representative star copolymers. Three principal phase diagram topologies, dictated by different phase stabilities, are exposed, displaying a hierarchy in complexity by increasing the molecular asymmetry. Our investigation indicates that the phase diagram topology depends on the ratios of arm numbers and Kuhn segment lengths, which highlights the role of the coordination number ratio between different polymers at the domain interface. These findings reveal the simplicity of the general phase behavior and suggest a complete list of stable microphases for the entire class, which provide useful insight into studying copolymers with more complicated architectures and conformational properties.
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Affiliation(s)
- Wei Li
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA
| | - Yi-Xin Liu
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA
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17
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Influence of Controlled Epoxidation of an Asymmetric Styrene/Butadiene Star Block Copolymer on Structural and Mechanical Properties. Polymers (Basel) 2020; 13:polym13010096. [PMID: 33383639 PMCID: PMC7795605 DOI: 10.3390/polym13010096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/24/2020] [Accepted: 12/24/2020] [Indexed: 11/17/2022] Open
Abstract
The chemical modification (namely the epoxidation) of a star shaped block copolymer (BCP) based on polystyrene (PS) and polybutadiene (PB) and its effect on structural and mechanical properties of the polymer were investigated. Epoxidation degrees of 37 mol%, 58 mol%, and 82 mol% were achieved by the reaction of the copolymer with meta-chloroperoxy benzoic acid (m-CPBA) under controlled conditions. The BCP structure was found to change from lamellae-like to mixed-type morphologies for intermediate epoxidation level while leading to quite ordered cylindrical structures for the higher level of chemical modification. As a consequence, the glass transition temperature (Tg) of the soft PB component of the BCP shifted towards significantly higher temperature. A clear increase in tensile modulus and tensile strength with a moderate decrease in elongation at break was observed. The epoxidized BCPs are suitable as reactive templates for the fabrication of nanostructured thermosetting resins.
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18
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Park SY, Choi C, Jang J, Kim E, Seo Y, Lee J, Kim JK, Jeong HU, Kim JU. Thin-Film Morphology of Symmetric Six-Arm Star-Shaped Poly(methyl methacrylate)-block-Polystyrene Copolymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- So Yeong Park
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784, Kyungbuk, Republic of Korea
| | - Chungryong Choi
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784, Kyungbuk, Republic of Korea
| | - Junho Jang
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784, Kyungbuk, Republic of Korea
| | - Eunseol Kim
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784, Kyungbuk, Republic of Korea
| | - Yeseong Seo
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784, Kyungbuk, Republic of Korea
| | - Jaeyong Lee
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784, Kyungbuk, Republic of Korea
| | - Jin Kon Kim
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784, Kyungbuk, Republic of Korea
| | - Hyeon U Jeong
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jaeup U. Kim
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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19
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Hampu N, Werber JR, Chan WY, Feinberg EC, Hillmyer MA. Next-Generation Ultrafiltration Membranes Enabled by Block Polymers. ACS NANO 2020; 14:16446-16471. [PMID: 33315381 DOI: 10.1021/acsnano.0c07883] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Reliable and equitable access to safe drinking water is a major and growing challenge worldwide. Membrane separations represent one of the most promising strategies for the energy-efficient purification of potential water sources. In particular, porous membranes are used for the ultrafiltration (UF) of water to remove contaminants with nanometric sizes. However, despite exhibiting excellent water permeability and solution processability, existing UF membranes contain a broad distribution of pore sizes that limit their size selectivity. To maximize the potential utility of UF membranes and allow for precise separations, improvements in the size selectivity of these systems must be achieved. Block polymers represent a potentially transformative solution, as these materials self-assemble into well-defined domains of uniform size. Several different strategies have been reported for integrating block polymers into UF membranes, and each strategy has its own set of materials and processing considerations to ensure that uniform and continuous pores are generated. This Review aims to summarize and critically analyze the chemistries, processing techniques, and properties required for the most common methods for producing porous membranes from block polymers, with a particular focus on the fundamental mechanisms underlying block polymer self-assembly and pore formation. Critical structure-property-performance metrics will be analyzed for block polymer UF membranes to understand how these membranes compare to commercial UF membranes and to identify key research areas for continued improvements. This Review is intended to inform readers of the capabilities and current challenges of block polymer UF membranes, while stimulating critical thought on strategies to advance these technologies.
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Affiliation(s)
- Nicholas Hampu
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jay R Werber
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Wui Yarn Chan
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Elizabeth C Feinberg
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Marc A Hillmyer
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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20
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Barbon SM, Song JA, Chen D, Zhang C, Lequieu J, Delaney KT, Anastasaki A, Rolland M, Fredrickson GH, Bates MW, Hawker CJ, Bates CM. Architecture Effects in Complex Spherical Assemblies of (AB) n-Type Block Copolymers. ACS Macro Lett 2020; 9:1745-1752. [PMID: 35653677 DOI: 10.1021/acsmacrolett.0c00704] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Molecular architecture plays a key role in the self-assembly of block copolymers, but few studies have systematically examined the influence of chain connectivity on tetrahedrally close-packed (TCP) sphere phases. Here, we report a versatile material platform comprising two blocks with substantial conformational asymmetry, A = poly(trifluoroethyl acrylate) and B = poly(dodecyl acrylate), and use it to compare the phase behavior of AB diblocks, ABA triblocks, and (AB)n radial star copolymers with n = 3 or 4. Each architecture forms TCP sphere phases at minority A block compositions (fA < 0.5), namely, σ and A15, but with differences in the location of order-order phase boundaries that are not anticipated by mean-field self-consistent field theory simulations. These results expand the palette of polymer architectures that readily self-assemble into complex TCP structures and suggest important design considerations when targeting specific phases of interest.
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Affiliation(s)
| | | | | | - Cheng Zhang
- Australian Institute for Bioengineering and Nanotechnology and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of Queensland, Brisbane, Queensland 4072, Australia
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21
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Lin FY, Hohmann AD, Hernández N, Shen L, Dietrich H, Cochran EW. Self-Assembly of Poly(styrene- block-acrylated epoxidized soybean oil) Star-Brush-Like Block Copolymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00441] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fang-Yi Lin
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Austin D. Hohmann
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Nacú Hernández
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Liyang Shen
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Hannah Dietrich
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Eric W. Cochran
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
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22
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Ren Y, Müller M. Impact of Molecular Architecture on Defect Removal in Lamella-Forming Triblock Copolymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00736] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yongzhi Ren
- Key Lab of In-Fiber Integrated Optics, Ministry of Education, 150001 Harbin, China
- College of Physics and Optoelectronic Engineering, Harbin Engineering University, 150001 Harbin, China
| | - Marcus Müller
- Institut für Theoretische Physik, Universität Göttingen, 37077 Göttingen, Germany
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23
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Jiang Y, Qian M, Xu Y. Influence of Branches on the Phase Behavior of (AB) f Starlike Block Copolymer under Cylindrical Confinement. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:16813-16820. [PMID: 31789525 DOI: 10.1021/acs.langmuir.9b02740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Experimentally, self-assembled morphologies of the (AB)f starlike block copolymer are strongly dependent on the number of arms, f. For example, the 2- and 4-arm starlike block copolymers exhibited the morphologies of hexagonally arrayed polystyrene cylinder in the polyisoprene matrix while order-bicontinuous nanostructures were observed in 8-, 12-, and 18-arm stars. Theoretically, we found that the transition sequence for (AB)3 is C1B → DkB → P2B → L2B, which becomes C1B → L1B when f > 6. To explore the influence of f on the phase behavior of (AB)f under cylindrical confinement, we calculated the two-dimensional phase diagram with respect to the volume fraction and the pore diameter. Our conclusions show that the topologies of the phase diagram are independent of the number of arms; however, the number of arms does affect the phase boundary, which inevitably leads to the different phase transition sequences at fixed volume fraction. Therefore, from the calculated phase diagram, the influence of f on the phase behavior of the starlike copolymer is fully understood.
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Affiliation(s)
- Yangyang Jiang
- Faculty of Materials Science and Chemical Engineering , Ningbo University , 818 Fenghua Road , Ningbo , Zhejiang 315211 , China
| | - Mingshuang Qian
- Faculty of Materials Science and Chemical Engineering , Ningbo University , 818 Fenghua Road , Ningbo , Zhejiang 315211 , China
| | - Yuci Xu
- Faculty of Materials Science and Chemical Engineering , Ningbo University , 818 Fenghua Road , Ningbo , Zhejiang 315211 , China
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24
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Mu D, Li JQ, Cong XS, Zhang H. Mesoscopic Detection of the Influence of a Third Component on the Self-Assembly Structure of A 2B Star Copolymer in Thin Films. Polymers (Basel) 2019; 11:E1636. [PMID: 31658618 PMCID: PMC6835291 DOI: 10.3390/polym11101636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/04/2019] [Accepted: 10/08/2019] [Indexed: 11/16/2022] Open
Abstract
The most common self-assembly structure for A2B copolymer is the micellar structure with B/A segments being the core/corona, which greatly limits its application range. Following the principle of structure deciding the properties, a reformation in the molecular structure of A2B copolymer is made by appending three segments of a third component C with the same length to the three arms, resulting (AC)2CB 3-miktoarm star terpolymer. A reverse micellar structure in self-assembly is expected by regulating the C length and the pairwise repulsive strength of C to A/B, aiming to enrich its application range. Keeping both A and B lengths unchanged, when the repulsion strength of C to A is much stronger than C to B, from the results of mesoscopic simulations we found, with a progressive increase in C length, (AC)2CB terpolymer undergoes a transition in self-assembled structures, from a cylindrical structure with B component as the core, then to a deformed lamellar structure, and finally to a cylindrical structure with A component as the core. This reverse micellar structure is formed with the assistance of appended C segments, whose length is longer than half of B length, enhancing the flexibility of three arms, and further facilitating the aggregation of A component into the core. These results prove that the addition of a third component is a rational molecular design, in conjunction with some relevant parameters, enables the manufacturing of the desired self-assembly structure while avoiding excessive changes in the involved factors.
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Affiliation(s)
- Dan Mu
- College of Chemistry Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang 277160, China.
- Advanced Photonics Center, Southeast University, 2# Sipailou, Nanjing 210096, China.
- Zaozhuang Key Laboratory of Functional Materials, Zaozhuang 277160, China.
| | - Jian-Quan Li
- Opto-Electronic Engineering College, Zaozhuang University, Zaozhuang 277160, China.
| | - Xing-Shun Cong
- College of Chemistry Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang 277160, China.
| | - Han Zhang
- College of Chemistry Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang 277160, China.
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25
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Shao Z, Zhang D, Hu W, Xu Y, Li W. Transition mechanisms of three-dimensional nanostructures formed from geometrically constraining (AB) star block copolymers. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.05.062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Chen L, Qiang Y, Li W. Tuning Arm Architecture Leads to Unusual Phase Behaviors in a (BAB)5 Star Copolymer Melt. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01484] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lei Chen
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yicheng Qiang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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27
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Spencer RKW, Matsen MW. Field-theoretic simulations of bottlebrush copolymers. J Chem Phys 2018; 149:184901. [PMID: 30441915 DOI: 10.1063/1.5051744] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Traditional particle-based simulations struggle with large bottlebrush copolymers, consisting of many side chains grafted to a backbone. Field-theoretical simulations (FTS) allow us to overcome the computational demands in order to calculate their equilibrium behavior. We consider bottlebrushes where all grafts are symmetric diblock copolymers, focusing on the order-disorder transition (ODT) and the size of ordered domains. Increasing the number of grafts and decreasing the spacing between them both raise the transition temperature. The ODT and lamellar period asymptotically approach constants as the number of grafts increases. As the spacing between grafts becomes large, the bottlebrushes behave like diblock copolymers, and as it becomes small, they behave like starblock copolymers. In between, the period increases, reaching a maximum when the spacing is approximately 0.35 times the length of the grafts. A comparison of FTS with mean-field calculations allows us to assess the effect of compositional fluctuations. Fluctuations suppress ordering, while having little effect on the period, as is the case for diblock copolymers.
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Affiliation(s)
- Russell K W Spencer
- Department of Chemical Engineering, Department of Physics and Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Mark W Matsen
- Department of Chemical Engineering, Department of Physics and Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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28
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Affiliation(s)
- Bilin Zhuang
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
- Department of Materials Science and Engineering, Institute of High Performance Computing, Singapore 138632, Singapore
| | - Zhen-Gang Wang
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
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29
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Guo Z, Le AN, Feng X, Choo Y, Liu B, Wang D, Wan Z, Gu Y, Zhao J, Li V, Osuji CO, Johnson JA, Zhong M. Janus Graft Block Copolymers: Design of a Polymer Architecture for Independently Tuned Nanostructures and Polymer Properties. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802844] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zi‐Hao Guo
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - An N. Le
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Xunda Feng
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Youngwoo Choo
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Bingqian Liu
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Danyu Wang
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Zhengyi Wan
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Yuwei Gu
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Julia Zhao
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Vince Li
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Chinedum O. Osuji
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Jeremiah A. Johnson
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Mingjiang Zhong
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
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30
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Guo Z, Le AN, Feng X, Choo Y, Liu B, Wang D, Wan Z, Gu Y, Zhao J, Li V, Osuji CO, Johnson JA, Zhong M. Janus Graft Block Copolymers: Design of a Polymer Architecture for Independently Tuned Nanostructures and Polymer Properties. Angew Chem Int Ed Engl 2018; 57:8493-8497. [DOI: 10.1002/anie.201802844] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Zi‐Hao Guo
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - An N. Le
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Xunda Feng
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Youngwoo Choo
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Bingqian Liu
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Danyu Wang
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Zhengyi Wan
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Yuwei Gu
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Julia Zhao
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Vince Li
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Chinedum O. Osuji
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
| | - Jeremiah A. Johnson
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Mingjiang Zhong
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06511 USA
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31
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Seo Y, Jang S, Ahn S, Mishra AK, Kim JK, Lee WB. Phase Behavior of 18-Arm Star-Shaped Polystyrene-block-poly(methyl methacrylate) Copolymers with Different Second Block Initiations. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02586] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yeseong Seo
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Sangsin Jang
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Seonghyeon Ahn
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Avnish Kumar Mishra
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Jin Kon Kim
- National Creative Research Initiative Center for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Won Bo Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
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32
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Jiang W, Qiang Y, Li W, Qiu F, Shi AC. Effects of Chain Topology on the Self-Assembly of AB-Type Block Copolymers. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02389] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Wenbo Jiang
- State
Key Laboratory of Molecular Engineering of Polymers, Key Laboratory
of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Yicheng Qiang
- State
Key Laboratory of Molecular Engineering of Polymers, Key Laboratory
of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Weihua Li
- State
Key Laboratory of Molecular Engineering of Polymers, Key Laboratory
of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Feng Qiu
- State
Key Laboratory of Molecular Engineering of Polymers, Key Laboratory
of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - An-Chang Shi
- Department
of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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33
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Zhao B, Jiang W, Chen L, Li W, Qiu F, Shi AC. Emergence and Stability of a Hybrid Lamella-Sphere Structure from Linear ABAB Tetrablock Copolymers. ACS Macro Lett 2018; 7:95-99. [PMID: 35610924 DOI: 10.1021/acsmacrolett.7b00818] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The self-assembly of linear A1B1A2B2 tetrablock copolymers is studied using the self-consistent field theory, aiming to target the formation of stable hybrid structures composed of lamellar and spherical domains of the same component, i.e., the lamella-sphere (LS) phase. Two types of lamellar morphologies, regular (L) and sandwich-like (L'), are observed, and their transition is identified as first-order. The formation of L' is a prior condition for the formation of LS because the disordered short A2-blocks sandwiched in the B domain in L' aggregate into spheres as χN increases, leading to the formation of LS. The separation of A2-blocks from A1-blocks in L' or LS causes extra interfacial energy, which is compensated by the gain of configurational entropy. The tail B2-block is demonstrated to play a critical role in enlarging the gain of configurational entropy. In a word, the formation of L' is driven by entropy, while the transition from L' to LS is driven by enthalpy.
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Affiliation(s)
- Bin Zhao
- State
Key Laboratory of Molecular Engineering of Polymers, Key Laboratory
of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Wenbo Jiang
- State
Key Laboratory of Molecular Engineering of Polymers, Key Laboratory
of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Lei Chen
- State
Key Laboratory of Molecular Engineering of Polymers, Key Laboratory
of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Weihua Li
- State
Key Laboratory of Molecular Engineering of Polymers, Key Laboratory
of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Feng Qiu
- State
Key Laboratory of Molecular Engineering of Polymers, Key Laboratory
of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - An-Chang Shi
- Department
of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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34
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Tamate R, Hashimoto K, Ueki T, Watanabe M. Block copolymer self-assembly in ionic liquids. Phys Chem Chem Phys 2018; 20:25123-25139. [DOI: 10.1039/c8cp04173c] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Recent developments in block copolymer self-assembly in ionic liquids are reviewed from both fundamental and applied aspects.
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Affiliation(s)
- Ryota Tamate
- Department of Chemistry and Biotechnology
- Yokohama National University
- Yokohama 240-8501
- Japan
| | - Kei Hashimoto
- Department of Chemistry and Biotechnology
- Yokohama National University
- Yokohama 240-8501
- Japan
| | - Takeshi Ueki
- WPI Research Center International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- Ibaraki
- Japan
| | - Masayoshi Watanabe
- Department of Chemistry and Biotechnology
- Yokohama National University
- Yokohama 240-8501
- Japan
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35
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Maher MJ, Jones SD, Zografos A, Xu J, Schibur HJ, Bates FS. The Order–Disorder Transition in Graft Block Copolymers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02262] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Michael J. Maher
- Department of Chemical Engineering
and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Seamus D. Jones
- Department of Chemical Engineering
and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Aristotelis Zografos
- Department of Chemical Engineering
and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jun Xu
- Department of Chemical Engineering
and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Haley J. Schibur
- Department of Chemical Engineering
and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Frank S. Bates
- Department of Chemical Engineering
and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
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36
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Ginzburg VV. Modeling the Morphology and Phase Behavior of One-Component Polymer-Grafted Nanoparticle Systems. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01922] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Valeriy V. Ginzburg
- Materials Science and Engineering, The Dow Chemical Company, Building 1702, Midland, Michigan 48674, United States
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37
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Asai Y, Suzuki J, Aoyama Y, Nishioka H, Takano A, Matsushita Y. Tricontinuous Double Diamond Network Structure from Binary Blends of ABC Triblock Terpolymers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00403] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Yusuke Asai
- Department
of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Jiro Suzuki
- Computing
Research Center, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
- Information
System Section, J-PARC Center, 2-4 Shirakatashirane, Tokai, Ibaraki 319-1195, Japan
| | - Yoshitaka Aoyama
- JEOL Ltd., 1-2 Musashino, 3-Chome Akishima, Tokyo 196-8558, Japan
| | - Hideo Nishioka
- JEOL Ltd., 1-2 Musashino, 3-Chome Akishima, Tokyo 196-8558, Japan
| | - Atsushi Takano
- Department
of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yushu Matsushita
- Department
of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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38
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39
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Affiliation(s)
- Russell K. W. Spencer
- Department of Chemical Engineering, Department of Physics & Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Mark W. Matsen
- Department of Chemical Engineering, Department of Physics & Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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40
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Polymeropoulos G, Zapsas G, Ntetsikas K, Bilalis P, Gnanou Y, Hadjichristidis N. 50th Anniversary Perspective: Polymers with Complex Architectures. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02569] [Citation(s) in RCA: 239] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- George Polymeropoulos
- Division of Physical Sciences & Engineering, KAUST Catalysis Center, Polymer Synthesis Laboratory, and ‡Division of Physical Sciences & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - George Zapsas
- Division of Physical Sciences & Engineering, KAUST Catalysis Center, Polymer Synthesis Laboratory, and ‡Division of Physical Sciences & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Konstantinos Ntetsikas
- Division of Physical Sciences & Engineering, KAUST Catalysis Center, Polymer Synthesis Laboratory, and ‡Division of Physical Sciences & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Panayiotis Bilalis
- Division of Physical Sciences & Engineering, KAUST Catalysis Center, Polymer Synthesis Laboratory, and ‡Division of Physical Sciences & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Yves Gnanou
- Division of Physical Sciences & Engineering, KAUST Catalysis Center, Polymer Synthesis Laboratory, and ‡Division of Physical Sciences & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Nikos Hadjichristidis
- Division of Physical Sciences & Engineering, KAUST Catalysis Center, Polymer Synthesis Laboratory, and ‡Division of Physical Sciences & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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41
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Li PY, He C, Li JM, Li LW, Ye XD, He WD. Long-subchain Janus-dendritic copolymers from locally confined click reaction and generation-dependent micro-phase separation. Polym Chem 2017. [DOI: 10.1039/c7py00551b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Long-subchain Janus-dendritic copolymers composed of PSt and PtBA half-dendrons, up to the third generation, were prepared under alternating chemical and local confinement. All the Janus-dendritic copolymers exhibited generation-dependent microphase separation.
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Affiliation(s)
- Peng-Yun Li
- Key Laboratory of Soft Matter Chemistry
- Chinese Academy of Sciences
- and Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
| | - Chen He
- Key Laboratory of Soft Matter Chemistry
- Chinese Academy of Sciences
- and Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
| | - Jia-Min Li
- Key Laboratory of Soft Matter Chemistry
- Chinese Academy of Sciences
- and Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
| | - Lian-Wei Li
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei
- China
| | - Xiao-Dong Ye
- Department of Chemical Physics
- University of Science and Technology of China
- Hefei
- China
| | - Wei-Dong He
- Key Laboratory of Soft Matter Chemistry
- Chinese Academy of Sciences
- and Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
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42
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Burns AB, Register RA. Mechanical Properties of Star Block Polymer Thermoplastic Elastomers with Glassy and Crystalline End Blocks. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02175] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Adam B. Burns
- Department of Chemical and
Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Richard A. Register
- Department of Chemical and
Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
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43
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Wang C, Xu Y, Li W, Lin Z. Rich Variety of Three-Dimensional Nanostructures Enabled by Geometrically Constraining Star-like Block Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7908-7916. [PMID: 27389278 DOI: 10.1021/acs.langmuir.6b01904] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The influence of star-like architecture on phase behavior of star-like block copolymer under cylindrical confinement differs largely from the bulk (i.e., nonconfinement). A set of intriguing self-assembled morphologies and the corresponding phase diagrams of star-like (AB)f diblock copolymers with different numbers of arms f (i.e., f = 3, 9, 15, and 21) in four scenarios (ϕA = 0.3 and V0 > 0; ϕA = 0.3 and V0 < 0; ϕA = 0.7 and V0 > 0; and ϕA = 0.7 and V0 < 0 (where ϕA is the volume fraction of A block) and V0 < 0 and V0 > 0 represent that the pore wall of cylindrical confinement prefers the inner A block (i.e., A-preferential) and B block (i.e., B-preferential), respectively) were for the first time scrutinized by employing the pseudospectral method of self-consistent mean-field theory. Surprisingly, a new nanoscopic phase, that is, perforated-lamellae-on-cylinder (denoted PC), was observed in star-like (AB)3 diblock copolymer at ϕA = 0.3 and V0 > 0. With a further increase in f, a single lamellae (denoted L1) was found to possess a larger phase region. Under the confinement of A-preferential wall (i.e., V0 < 0) at ϕA = 0.3, PC phase became metastable and its free energy increased as f increased. Quite intriguingly, when ϕA = 0.7 and V0 > 0, where an inverted cylinder was formed in bulk, the PC phase became stable, and its free energy decreased as f increased, suggesting the propensity to form PC phase under this condition. Moreover, in stark contrast to the phase transition of C1 → L1 → PC (C1, a single cylindrical microdmain) at ϕA = 0.3 and V0 > 0, when subjected to the A-preferential wall (ϕA = 0.7), a different phase transition sequence (i.e., C1 → PC → L1) was identified due to the formation of a double-layer structure. On the basis of our calculations, the influence of star-like architecture on (AB)f diblock copolymer under the imposed cylindrical confinement, particularly the shift of the phase boundaries as a function of f, was thoroughly understood. These self-assembled nanostructures may hold the promise for applications as lithographic templates for nanowires, photonic crystals, and nanotechnology.
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Affiliation(s)
- Chao Wang
- Faculty of Materials Science and Chemical Engineering, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Yuci Xu
- Faculty of Materials Science and Chemical Engineering, Ningbo University , Ningbo, Zhejiang 315211, China
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymer, Department of Macromolecular Science, Fudan University , Shanghai 200433, China
| | - Zhiqun Lin
- School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
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44
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Shin S, Moon S, Seo M, Kim SY. Synthesis of coil-comb block copolymers containing polystyrene coil and poly(methyl methacrylate) side chains via atom transfer radical polymerization. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28182] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Seonhee Shin
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 305-701 Republic of Korea
| | - Seohyun Moon
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 305-701 Republic of Korea
| | - Myungeun Seo
- Graduate School of Nanoscience and Technology; KAIST; Daejeon 305-701 Republic of Korea
| | - Sang Youl Kim
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 305-701 Republic of Korea
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45
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Kriksin Y, Erukhimovich I, ten Brinke G. Self-Consistent Field Theory within Hildebrand Approximation: Microphase Separation in Gradient Copolymers. MACROMOL THEOR SIMUL 2016. [DOI: 10.1002/mats.201600018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yury Kriksin
- Keldysh Institute of Applied Mathematics of RAS; Miusskaya sq.4 125047 Moscow Russia
| | - Igor Erukhimovich
- A. N. Nesmeyanov Institute of Organoelement Compounds of RAS; Vavilova St. 28 119991 GSP-1 Moscow Russia
| | - Gerrit ten Brinke
- Department of Polymer Chemistry and Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747 AG Groningen The Netherlands
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46
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Pan Y, Shi LY, Ping J, Zhang Z, Gu K, Fan XH, Shen Z. Thermoreversible Order−Order Transition of a Triblock Copolymer Containing a Mesogen-Jacketed Liquid Crystalline Polymer with a Re-Entrant Phase Behavior. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201500514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yu Pan
- Beijing National Laboratory for Molecular Sciences; Department of Polymer Science and Engineering; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Ling-Ying Shi
- Beijing National Laboratory for Molecular Sciences; Department of Polymer Science and Engineering; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Jing Ping
- Beijing National Laboratory for Molecular Sciences; Department of Polymer Science and Engineering; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Zhenyu Zhang
- Beijing National Laboratory for Molecular Sciences; Department of Polymer Science and Engineering; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Kehua Gu
- Beijing National Laboratory for Molecular Sciences; Department of Polymer Science and Engineering; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Xing-He Fan
- Beijing National Laboratory for Molecular Sciences; Department of Polymer Science and Engineering; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences; Department of Polymer Science and Engineering; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
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47
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Lo TY, Dehghan A, Georgopanos P, Avgeropoulos A, Shi AC, Ho RM. Orienting Block Copolymer Thin Films via Entropy. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02685] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ting-Ya Lo
- Department
of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
| | - Ashkan Dehghan
- Department
of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - Prokopios Georgopanos
- Department
of Materials Science Engineering, University of Ioannina, University Campus, Ioannina 45110, Greece
| | - Apostolos Avgeropoulos
- Department
of Materials Science Engineering, University of Ioannina, University Campus, Ioannina 45110, Greece
| | - An-Chang Shi
- Department
of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - Rong-Ming Ho
- Department
of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
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48
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Shi W, Tateishi Y, Li W, Hawker CJ, Fredrickson GH, Kramer EJ. Producing Small Domain Features Using Miktoarm Block Copolymers with Large Interaction Parameters. ACS Macro Lett 2015; 4:1287-1292. [PMID: 35614830 DOI: 10.1021/acsmacrolett.5b00712] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We demonstrate that small domain features (∼13 nm) can be obtained in a series of polystyrene (PS) and poly(lactic acid) (PLA) block copolymers, PS-(PLA)2 and (PS)2-(PLA)2, that combine miktoarm molecular architectures with large interaction parameters. To supplement the experimental work, we used self-consistent field theory in tandem with the random phase approximation to explore and contrast the phase behavior of ABn and AnBn types of miktoarm block copolymers. Specifically, AB2 and A2B2 were found to be effective molecular architectures for inducing strong shifts in phase boundaries with copolymer composition and to simultaneously tune domain feature sizes. The performance of these systems is markedly different from the corresponding linear diblock copolymers and indicates the potential of macromolecular architecture control for future applications in lithography.
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Affiliation(s)
- Weichao Shi
- Materials Research Laboratory, ‡Department of Chemistry
and Biochemistry, §Materials Department, and ⊥Department of
Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Yuichi Tateishi
- Materials Research Laboratory, ‡Department of Chemistry
and Biochemistry, §Materials Department, and ⊥Department of
Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Wei Li
- Materials Research Laboratory, ‡Department of Chemistry
and Biochemistry, §Materials Department, and ⊥Department of
Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Craig J. Hawker
- Materials Research Laboratory, ‡Department of Chemistry
and Biochemistry, §Materials Department, and ⊥Department of
Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Glenn H. Fredrickson
- Materials Research Laboratory, ‡Department of Chemistry
and Biochemistry, §Materials Department, and ⊥Department of
Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Edward J. Kramer
- Materials Research Laboratory, ‡Department of Chemistry
and Biochemistry, §Materials Department, and ⊥Department of
Chemical Engineering, University of California, Santa Barbara, California 93106, United States
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49
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Shi W, Hamilton AL, Delaney KT, Fredrickson GH, Kramer EJ, Ntaras C, Avgeropoulos A, Lynd NA, Demassieux Q, Creton C. Aperiodic “Bricks and Mortar” Mesophase: a New Equilibrium State of Soft Matter and Application as a Stiff Thermoplastic Elastomer. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01210] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | - Christos Ntaras
- Department
of Materials Science and Engineering, University of Ioannina, University
Campus, Ioannina, Greece 45110
| | - Apostolos Avgeropoulos
- Department
of Materials Science and Engineering, University of Ioannina, University
Campus, Ioannina, Greece 45110
| | - Nathaniel A. Lynd
- McKetta
Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
- Materials
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Quentin Demassieux
- Laboratory
of Soft Matter Science and Engineering, ESPCI Paristech-CNRS-UPMC, 10 rue Vauquelin, 75005 Paris, France
| | - Costantino Creton
- Laboratory
of Soft Matter Science and Engineering, ESPCI Paristech-CNRS-UPMC, 10 rue Vauquelin, 75005 Paris, France
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50
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Shi W, Hamilton AL, Delaney KT, Fredrickson GH, Kramer EJ, Ntaras C, Avgeropoulos A, Lynd NA. Creating Extremely Asymmetric Lamellar Structures via Fluctuation-Assisted Unbinding of Miktoarm Star Block Copolymer Alloys. J Am Chem Soc 2015; 137:6160-3. [DOI: 10.1021/jacs.5b02881] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | - Christos Ntaras
- Department
of Materials Science and Engineering, University of Ioannina, University
Campus, Ioannina, Greece 45110
| | - Apostolos Avgeropoulos
- Department
of Materials Science and Engineering, University of Ioannina, University
Campus, Ioannina, Greece 45110
| | - Nathaniel A. Lynd
- McKetta
Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
- Materials
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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