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Chen Z, Seong HG, Hu M, Gan X, Ribbe AE, Ju J, Wang H, Doucet M, Emrick T, Russell TP. Janus bottlebrush compatibilizers. SOFT MATTER 2024; 20:1554-1564. [PMID: 38270211 DOI: 10.1039/d3sm01484c] [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
Bottlebrush random copolymers (BRCPs), consisting of a random distribution of two homopolymer chains along a backbone, can segregate to the interface between two immiscible homopolymers. BRCPs undergo a reconfiguration, where each block segregates to one of the homopolymer phases, adopting a Janus-type structure, reducing the interfacial tension and promoting adhesion between the two homopolymers, thereby serving as a Janus bottlebrush copolymer (JBCP) compatibilizer. We synthesized a series of JBCPs by copolymerizing deuterated or hydrogenated polystyrene (DPS/PS) and poly(tert-butyl acrylate) (PtBA) macromonomers using ruthenium benzylidene-initiated ring-opening metathesis polymerization (ROMP). Subsequent acid-catalyzed hydrolysis converted the PtBA brushes to poly(acrylic acid) (PAA). The JBCPs were then placed at the interface between DPS/PS homopolymers and poly(2-vinyl pyridine) (P2VP) homopolymers, where the degree of polymerization of the backbone (NBB) and the grafting density (GD) of the JBCPs were varied. Neutron reflectivity (NR) was used to determine the interfacial width and segmental density distributions (including PS homopolymer, PS block, PAA block and P2VP homopolymer) across the polymer-polymer interface. Our findings indicate that the star-like JBCP with NBB = 6 produces the largest interfacial broadening. Increasing NBB to 100 (rod-like shape) and 250 (worm-like shape) reduced the interfacial broadening due to a decrease in the interactions between blocks and homopolymers by stretching of blocks. Decreasing the GD from 100% to 80% at NBB = 100 caused an increase the interfacial width, yet further decreasing the GD to 50% and 20% reduced the interfacial width, as 80% of GD may efficiently increase the flexibility of blocks and promote interactions between homopolymers, while maintaining relatively high number of blocks attached to one molecule. The interfacial conformation of JBCPs was further translated into compatibilization efficiency. Thin film morphology studies showed that only the lower NBB values (NBB = 6 and NBB = 24) and the 80% GD of NBB = 100 had bicontinuous morphologies, due to a sufficient binding energy that arrested phase separation, supported by mechanical testing using asymmetric double cantilever beam (ADCB) tests. These provide fundamental insights into the assembly behavior of JBCPs compatibilizers at homopolymer interfaces, opening strategies for the design of new BCP compatibilizers.
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Affiliation(s)
- Zhan Chen
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, MA, 01003, USA.
| | - Hong-Gyu Seong
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, MA, 01003, USA.
| | - Mingqiu Hu
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, MA, 01003, USA.
| | - Xuchen Gan
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, MA, 01003, USA.
| | - Alexander E Ribbe
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, MA, 01003, USA.
| | - Jaechul Ju
- Department of Chemistry, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Hanyu Wang
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Mathieu Doucet
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Todd Emrick
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, MA, 01003, USA.
| | - Thomas P Russell
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, MA, 01003, USA.
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 37831, USA
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He G, Wang P, Gao N, Yin X, Sun F, Li W, Zhao H, Wang C, Li G. Pyrrole-Containing ABA Triblock Brush Polymers as Dual Functional Molecules to Facilely Access Diverse Mesostructured Materials. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guokang He
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Peng Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
- Aerospace Research Institute of Special Material and Processing Technology, Beijing 100074, P. R. China
| | - Ning Gao
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Xianpeng Yin
- Aerospace Research Institute of Special Material and Processing Technology, Beijing 100074, P. R. China
| | - Fuwei Sun
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Wenyun Li
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | | | - Chen Wang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Guangtao Li
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
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Liang R, Song Q, Li R, Le AN, Fu X, Xue Y, Ji X, Li W, Zhong M. Rapid Access to Diverse Multicomponent Hierarchical Nanostructures from Mixed‐Graft Block Copolymers. Angew Chem Int Ed Engl 2022; 61:e202210067. [DOI: 10.1002/anie.202210067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Ruiqi Liang
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06520 USA
| | - Qingliang Song
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Ruipeng Li
- National Synchrotron Light Source II Brookhaven National Laboratory Upton NY 11973 USA
| | - An N. Le
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06520 USA
| | - Xiaowei Fu
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06520 USA
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu 610065 China
| | - Yazhen Xue
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06520 USA
| | - Xiaoyu Ji
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06520 USA
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Mingjiang Zhong
- Department of Chemical and Environmental Engineering Yale University New Haven CT 06520 USA
- Department of Chemistry Yale University New Haven CT 06520 USA
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Chen D, Quah T, Delaney KT, Fredrickson GH. Investigation of the Self-Assembly Behavior of Statistical Bottlebrush Copolymers via Self-Consistent Field Theory Simulations. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Duyu Chen
- Materials Research Laboratory, University of California, Santa Barbara, California93106, United States
| | - Timothy Quah
- Department of Chemical Engineering, University of California, Santa Barbara, California93106, United States
| | - Kris T. Delaney
- Materials Research Laboratory, University of California, Santa Barbara, California93106, United States
| | - Glenn H. Fredrickson
- Materials Research Laboratory, University of California, Santa Barbara, California93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California93106, United States
- Materials Department, University of California, Santa Barbara, California 93106, United States
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Liang R, Song Q, Li R, Le AN, Fu X, Xue Y, Ji X, Li W, Zhong M. Rapid Access to Diverse Multicomponent Hierarchical Nanostructures from Mixed‐Graft Block Copolymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ruiqi Liang
- Yale University Department of Chemical and Environmental Engineering UNITED STATES
| | - Qingliang Song
- Fudan University Department of Macromolecular Science CHINA
| | - Ruipeng Li
- Brookhaven National Laboratory National Synchrotron Light Source II UNITED STATES
| | - An N. Le
- Yale University Department of Chemical and Environmental Engineering UNITED STATES
| | - Xiaowei Fu
- Yale University Department of Chemical and Environmental Engineering UNITED STATES
| | - Yazhen Xue
- Yale University Department of Chemical and Environmental Engineering UNITED STATES
| | - Xiaoyu Ji
- Yale University Department of Chemical and Environmental Engineering UNITED STATES
| | - Weihua Li
- Fudan University Department of Macromolecular Science CHINA
| | - Mingjiang Zhong
- Yale University Department of Chemical and Environmental Engineering 17 Hillhouse Ave Room 422 06511 New Haven UNITED STATES
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Huang J, Zhu X, Wang Y, Min Y, Li X, Zhang R, Qi D, Hua Z, Chen T. Compartmentalization of incompatible catalysts by micelles from bottlebrush copolymers for one-pot cascade catalysis. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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