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Wang Z, Li R, Zhang Y, Chan CLC, Haataja JS, Yu K, Parker RM, Vignolini S. Tuning the Color of Photonic Glass Pigments by Thermal Annealing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2207923. [PMID: 36482805 DOI: 10.1002/adma.202207923] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/21/2022] [Indexed: 06/17/2023]
Abstract
Thermal or solvent annealing is commonly employed to enhance phase separation and remove defects in block copolymer (BCP) films, leading to well-resolved nanostructures. Annealing is of particular importance for photonic BCP materials, where large, well-ordered lamellar domains are required to generate strong reflections at visible wavelengths. However, such strategies have not been considered for porous BCP systems, such as inverse photonic glasses, where the structure (and thus the optical response) is no longer defined solely by the chemical compatibility of the blocks, but by the size and arrangement of voids within the BCP matrix. In this study, a demonstration of how the concept of "thermal annealing" can be applied to bottlebrush block copolymer (BBCP) microparticles with a photonic glass architecture is presented, enabling their coloration to be tuned from blue to red. By comparing biocompatible BBCPs with similar composition, but different thermal behavior, it is shown that this process is driven by both a temperature-induced softening of the BBCP matrix (i.e., polymer mobility) and the absence of microphase separation (enabling diffusion-induced swelling of the pores). Last, this concept is applied toward the production of a thermochromic patterned hydrogel, exemplifying the potential of such responsive biocompatible photonic-glass pigments toward smart labeling or anticounterfeiting applications.
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Affiliation(s)
- Zhen Wang
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Ruiting Li
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Yating Zhang
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Chun Lam Clement Chan
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Johannes S Haataja
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Kui Yu
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Richard M Parker
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Silvia Vignolini
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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Cater HL, Balynska I, Allen MJ, Freeman BD, Page ZA. User Guide to Ring-Opening Metathesis Polymerization of endo-Norbornene Monomers with Chelated Initiators. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Henry L. Cater
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Iana Balynska
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Marshall J. Allen
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Benny D. Freeman
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Zachariah A. Page
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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3
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Kang N, Cho S, Leonhardt EE, Liu C, Verkhoturov SV, Woodward WHH, Eller MJ, Yuan T, Fitzgibbons TC, Borguet YP, Jahnke AA, Sokolov AN, McIntire T, Reinhardt C, Fang L, Schweikert EA, Spencer LP, Sun G, Xie G, Trefonas P, Wooley KL. Topological Design of Highly Anisotropic Aligned Hole Transporting Molecular Bottlebrushes for Solution-Processed OLEDs. J Am Chem Soc 2022; 144:8084-8095. [PMID: 35471843 DOI: 10.1021/jacs.2c00420] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polyvinyl polymers bearing pendant hole transport functionalities have been extensively explored for solution-processed hole transport layer (HTL) technologies, yet there are only rare examples of high anisotropic packing of the HT moieties of these polymers into substrate-parallel orientations within HTL films. For small molecules, substrate-parallel alignment of HT moieties is a well-established approach to improve overall device performance. To address the longstanding challenge of extension from vapor-deposited small molecules to solution-processable polymer systems, a fundamental chemistry tactic is reported here, involving the positioning of HT side chains within macromolecular frameworks by the construction of HT polymers having bottlebrush topologies. Applying state-of-the-art polymer synthetic techniques, various functional subunits, including triphenylamine (TPA) for hole transport and adhesion to the substrate, and perfluoro alkyl-substituted benzyloxy styrene for migration to the air interface, were organized with exquisite control over the composition and placement throughout the bottlebrush topology. Upon assembling the HT bottlebrush (HTB) polymers into monolayered HTL films on various substrates through spin-casting and thermal annealing, the backbones of HTBs were vertically aligned while the grafts with pendant TPAs were extended parallel to the substrate. The overall design realized high TPA π-stacking along the out-of-plane direction of the substrate in the HTLs, which doubled the efficiency of organic light-emitting diodes compared with linear poly(vinyl triphenylamine)s.
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Affiliation(s)
| | | | | | - Chun Liu
- The Dow Chemical Company, Midland, Michigan 48667, United States
| | | | | | | | | | | | | | | | | | - Travis McIntire
- The Dow Chemical Company, Midland, Michigan 48667, United States
| | - Carl Reinhardt
- The Dow Chemical Company, Midland, Michigan 48667, United States
| | | | | | | | | | - Guohua Xie
- Sauvage Center for Molecular Sciences and Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Peter Trefonas
- DuPont, Electronics and Imaging Division, Marlborough, Massachusetts 01752, United States
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Blosch SE, Alaboalirat M, Eades CB, Scannelli SJ, Matson JB. Solvent Effects in Grafting-through Ring-Opening Metathesis Polymerization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00254] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sarah E. Blosch
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg 24061, Virginia, United States
| | - Mohammed Alaboalirat
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg 24061, Virginia, United States
| | - Cabell B. Eades
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg 24061, Virginia, United States
| | - Samantha J. Scannelli
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg 24061, Virginia, United States
| | - John B. Matson
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg 24061, Virginia, United States
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5
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Archer WR, Dinges GE, MacNicol PL, Schulz MD. Synthesis of bottlebrush polymers based on poly( N-sulfonyl aziridine) macromonomers. Polym Chem 2022. [DOI: 10.1039/d2py01125e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We synthesized bottlebrush polymers with polyaziridine brushes and a polynorbornene backbone by a grafting-through approach. The polyaziridine macromonomer aggregates in solution, but these aggregates disperse over the course of the polymerization.
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Affiliation(s)
- William R. Archer
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, USA
| | - Grace E. Dinges
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, USA
| | - Piper L. MacNicol
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, USA
| | - Michael D. Schulz
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, USA
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Kim KH, Nam J, Choi J, Seo M, Bang J. From macromonomers to bottlebrush copolymers with sequence control: synthesis, properties, and applications. Polym Chem 2022. [DOI: 10.1039/d2py00126h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bottlebrush polymers (BBPs) are a type of comb-like macromolecules with densely grafted polymeric sidechains attached to the polymer backbones, and many intriguing properties and applications have been demonstrated due to...
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Zhao K, Gao Z, Song D, Zhang P, Cui J. Assembly of catechol-modified polymer brushes for drug delivery. Polym Chem 2022. [DOI: 10.1039/d1py00947h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The anticancer drug of Bortezomib conjugated onto catechol-modified bottlebrush block copolymers can be intracellularly released owing to the pH-responsive behavior, resulting in considerable cell death and tumor growth inhibition.
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Affiliation(s)
- Kaijie Zhao
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Zhiliang Gao
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Dongpo Song
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Peiyu Zhang
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Jiwei Cui
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China
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Mulchandani N, Masutani K, Kumar S, Yamane H, Sakurai S, Kimura Y, Katiyar V. Toughened PLA-b-PCL-b-PLA triblock copolymer based biomaterials: effect of self-assembled nanostructure and stereocomplexation on the mechanical properties. Polym Chem 2021. [DOI: 10.1039/d1py00429h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The current research unfolds the effect of block lengths, microdomain morphology and stereocomplexation on the mechanical properties of PLA-b-PCL-b-PLA triblock copolymers where PCL is involved to improve the poor extensibility of PLA.
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Affiliation(s)
- Neha Mulchandani
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- North Guwahati 781-039
- India
| | - Kazunari Masutani
- Department of Biobased Materials Science
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Sachin Kumar
- Department of Bioscience and Bioengineering
- Indian Institute of Technology Guwahati
- North Guwahati 781-039
- India
| | - Hideki Yamane
- Department of Biobased Materials Science
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Shinichi Sakurai
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- North Guwahati 781-039
- India
- Department of Biobased Materials Science
| | - Yoshiharu Kimura
- Department of Biobased Materials Science
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Vimal Katiyar
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- North Guwahati 781-039
- India
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