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Lin H, Yang X, Liu SY, Jäkle F. Ring-Opening Metathesis Polymerization of the Dewar Isomer of 1,2-Azaborinine, a B-N Isostere of Benzene. ACS Macro Lett 2024; 13:21-27. [PMID: 38095183 PMCID: PMC10842419 DOI: 10.1021/acsmacrolett.3c00601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
The successful polymerization of the Dewar isomer of an azaborinine heterocycle is reported. Controlled ring-opening metathesis polymerization was accomplished with Grubbs and Hoveya-Grubbs second generation catalysts (G2, HG2), as well as a Z-selective Ru catalyst (HGM2001). The structure of the polymers containing 4-membered B-N heterocycles was verified by GPC and multinuclear and 2D NMR. Differences in stereochemistry of polymers derived from G2/HG2 versus the Z-selective catalyst HGM2001 were substantiated by 2D NOESY, FT-IR, and Raman analyses. The incorporation of B-N heterocycles into these polymer structures is promising as a route to functional polymers that contain polar side groups.
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Affiliation(s)
- Huina Lin
- Department of Chemistry, Rutgers University - Newark, Newark, New Jersey 07102, United States
| | - Xinyu Yang
- Department of Chemistry, Boston College, Chestnut Hill, Massachusetts 02135, United States
| | - Shih-Yuan Liu
- Department of Chemistry, Boston College, Chestnut Hill, Massachusetts 02135, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University - Newark, Newark, New Jersey 07102, United States
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2
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Gao L, Huang J, Qu L, Chen X, Zhu Y, Li C, Tian Q, Zhao Y, Yang C. Stepwise taming of triplet excitons via multiple confinements in intrinsic polymers for long-lived room-temperature phosphorescence. Nat Commun 2023; 14:7252. [PMID: 37945554 PMCID: PMC10636106 DOI: 10.1038/s41467-023-43133-1] [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: 05/24/2023] [Accepted: 11/01/2023] [Indexed: 11/12/2023] Open
Abstract
Polymeric materials exhibiting room temperature phosphorescence (RTP) show a promising application potential. However, the conventional ways of preparing such materials are mainly focused on doping, which may suffer from phase separation, poor compatibility, and lack of effective methods to promote intersystem crossing and suppress the nonradiative deactivation rates. Herein, we present an intrinsically polymeric RTP system producing long-lived phosphorescence, high quantum yields and multiple colors by stepwise structural confinement to tame triplet excitons. In this strategy, the performance of the materials is improved in two aspects simultaneously: the phosphorescence lifetime of one polymer (9VA-B) increased more than 4 orders of magnitude, and the maximum phosphorescence quantum yield reached 16.04% in halogen-free polymers. Moreover, crack detection is realized by penetrating steam through the materials exposed to humid surroundings as a special quenching effect, and the information storage is carried out by employing the Morse code and the variations in lifetimes. This study provides a different strategy for constructing intrinsically polymeric RTP materials toward targeted applications.
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Affiliation(s)
- Liang Gao
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Jiayue Huang
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Lunjun Qu
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Xiaohong Chen
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Ying Zhu
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Chen Li
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Quanchi Tian
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Yanli Zhao
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
| | - Chaolong Yang
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China.
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Synthesis of Chain-End Functional Polydienes Using Diene Comonomer Bearing Boronic Acid Masked with Diaminonaphthalene. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27249007. [PMID: 36558140 PMCID: PMC9780943 DOI: 10.3390/molecules27249007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Diene comonomers bearing boronic acid masked with 1,8-diaminonaphthalene (dan) were applied to copolymerization with isoprene or butadiene using neodymium borohydride complex as a catalyst. The comonomers were tolerant to excess modified methylaluminoxane (MMAO) and thus were applicable to the polymerization system using MMAO. On the other hand, the corresponding pinacol borate was highly reactive toward MMAO, and no incorporation into the obtained polymer was observed. A 13C NMR microstructural analysis of the hydrogenated copolymer revealed that all of the comonomers were located at the chain end. Further functionalization using the boron moiety at the polymer chain end was also investigated.
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Ji Y, Catazaro J, Jiang Q, Melvin SJ, Jiang J, Klausen RS. Characterization of Styrene–Vinyl Alcohol Copolymers by CP-MAS NMR Spectroscopy. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01009] [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)
- Yuyang Ji
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Jonathan Catazaro
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Qifeng Jiang
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Sophia J. Melvin
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Jennifer Jiang
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Rebekka S. Klausen
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
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Wakefield IV H, Jiang Q, Klausen RS. Azaborine Isomer Effects on Benzylic Ion Stability and Reactivity: Consequences for BN2VN Ionic Polymerization. Org Biomol Chem 2022; 20:1407-1414. [DOI: 10.1039/d1ob02467a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Benzylic cations and anions are implicated in the mechanism of critical organic transformations, such as styrene polymerization. We investigate the influence of BN for CC bond substitution on the reactivity...
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6
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Garrison JB, Hughes RW, Young JB, Sumerlin BS. Photoinduced SET to access olefin-acrylate copolymers. Polym Chem 2022. [DOI: 10.1039/d1py01643a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Single-electron transfer (SET)-induced decarboxylative backbone radical generation was exploited to produce statistical olefin-acrylate copolymers. Quenching of the backbone radical with an H atom donor yielded ethylene or propylene repeat units.
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Affiliation(s)
- John B. Garrison
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611, USA
| | - Rhys W. Hughes
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611, USA
| | - James B. Young
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611, USA
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, PO Box 117200, Gainesville, Florida 32611, USA
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Ji Y, Klausen RS. Chain transfer to solvent in
BN 2‐vinylnaphthalene
radical polymerization. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuyang Ji
- Department of Chemistry Johns Hopkins University Baltimore Maryland USA
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8
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Nishikawa T, Ouchi M. Recent Development in Polymer Reactions for Overcoming Synthetic Limitations in Chain-growth Polymerization. CHEM LETT 2021. [DOI: 10.1246/cl.200787] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Tsuyoshi Nishikawa
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Makoto Ouchi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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Huang J, Jiang Y, Zhang Z, Li S, Cui D. Stereoselective Polymerization of an Aromatic Vinyl Monomer to Access Highly Syndiotactic Poly(vinyl alcohol). Macromol Rapid Commun 2020; 41:e2000038. [DOI: 10.1002/marc.202000038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 03/10/2020] [Accepted: 03/25/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Jianming Huang
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Hefei 230026 China
| | - Yang Jiang
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Hefei 230026 China
| | - Zhen Zhang
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
- Key Laboratory of Automobile Materials of Ministry of EducationDepartment of Materials Science and EngineeringJilin University Changchun 130025 China
| | - Shihui Li
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Hefei 230026 China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Hefei 230026 China
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Ji Y, Zhou T, van de Wouw HL, Klausen RS. Organoborane Strategy for Polymers Bearing Lactone, Ester, and Alcohol Functionality. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b02201] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yuyang Ji
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, Maryland 21218, United States
| | - Tiffany Zhou
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, Maryland 21218, United States
| | - Heidi L. van de Wouw
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, Maryland 21218, United States
| | - Rebekka S. Klausen
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, Maryland 21218, United States
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11
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Lin H, McConnell CR, Jilus B, Liu SY, Jäkle F. Changing up BN-Polystyrene: Effect of Substitution Pattern on the Free-Radical Polymerization and Polymer Properties. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00466] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Huina Lin
- Department of Chemistry, Rutgers University—Newark, Newark, New Jersey 07102, United States
| | - Cameron R. McConnell
- Department of Chemistry, Boston College, Chestnut Hill, Massachusetts 02135, United States
| | - Berothy Jilus
- Department of Chemistry, Rutgers University—Newark, Newark, New Jersey 07102, United States
| | - Shih-Yuan Liu
- Department of Chemistry, Boston College, Chestnut Hill, Massachusetts 02135, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University—Newark, Newark, New Jersey 07102, United States
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12
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van de Wouw HL, Klausen RS. BN Polystyrenes: Emerging Optical Materials and Versatile Intermediates. J Org Chem 2019; 84:1117-1125. [PMID: 30620583 DOI: 10.1021/acs.joc.8b02921] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BN polystyrenes are an emerging class of polyolefins functionalized with aromatic side chains in which at least one CC bond is replaced with a BN bond. This class of structures exhibits unusual photophysical properties relative to organic polymers. BN polystyrenes serve as intermediates in the preparation of functional polymers, including stereoregular polar polyolefins. The consequences of BN for CC bond substitution on reactivity and properties are highlighted.
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Affiliation(s)
- Heidi L van de Wouw
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Rebekka S Klausen
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
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13
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Messina MS, Graefe CT, Chong P, Ebrahim OM, Pathuri RS, Bernier NA, Mills HA, Rheingold AL, Frontiera RR, Maynard HD, Spokoyny AM. Carborane RAFT agents as tunable and functional molecular probes for polymer materials. Polym Chem 2019. [DOI: 10.1039/c9py00199a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carborane RAFT agents are introduced as tunable multi-purpose tools acting as 1H NMR spectroscopic handles, Raman probes, and recognition units.
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Affiliation(s)
- Marco S. Messina
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | | | - Paul Chong
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
- Department of Chemistry
| | - Omar M. Ebrahim
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Ramya S. Pathuri
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Nicholas A. Bernier
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | - Harrison A. Mills
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
| | | | | | - Heather D. Maynard
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
- California NanoSystems Institute
| | - Alexander M. Spokoyny
- Department of Chemistry and Biochemistry
- University of California
- Los Angeles
- USA
- California NanoSystems Institute
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