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Milton M, Deng R, Mann A, Wang C, Tang D, Weck M. Secondary Structure in Nonpeptidic Supramolecular Block Copolymers. Acc Chem Res 2021; 54:2397-2408. [PMID: 33914498 DOI: 10.1021/acs.accounts.1c00028] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Proteins contain a level of complexity-secondary and tertiary structures-that polymer chemists aim to imitate. The bottom-up synthesis of protein-mimicking polymers mastering sequence variability and dispersity remains challenging. Incorporating polymers with predefined secondary structures, such as helices and π-π stacking sheets, into block copolymers circumvents the issue of designing and predicting one facet of their 3D architecture. Block copolymers with well-defined secondary-structure elements formed by covalent chain extension or supramolecular self-assembly may be considered for localized tertiary structures.In this Account, we describe a strategy toward block copolymers composed of units bearing well-defined secondary structures mixed in a "plug-and-play" manner that approaches a modicum of the versatility seen in nature. Our early efforts focused on the concept of single-chain collapse to achieve folded secondary structures through either hydrogen bonding or quadrupole attractive forces. These cases, however, required high dilution. Therefore, we turned to the ring-opening metathesis polymerization (ROMP) of [2.2]paracyclophane-1,9-dienes (pCpd), which forms conjugated, fluorescent poly(p-phenylenevinylene)s (PPVs) evocative of β-sheets. Helical building blocks arise from polymers such as poly(isocyanide)s (PICs) or poly(methacrylamide)s (PMAcs) containing bulky, chiral side groups while the coil motif can be represented by any flexible chain; we frequently chose poly(styrene) (PS) or poly(norbornene) (PNB). We installed moieties for supramolecular assembly at the chain ends of our "sheets" to combine them with complementary helical or coil-shaped polymeric building blocks.Assembling hierarchical materials tantamount to the complexity of proteins requires directional interactions with high specificity, covalent chain extension, or a combination of both chemistries. Our design is based on functionalized reversible addition-fragmentation chain-transfer (RAFT) agents that allowed for the introduction of recognition motifs at the terminus of building blocks and chain-terminating agents (CTAs) that enabled the macroinitiation of helical polymers from the chain end of ROMP-generated sheets and/or coils. To achieve triblock copolymers with a heterotelechelic helix, we relied on supramolecular assembly with helix and coil-shaped building blocks. Our most diverse structures to date comprised a middle block of PPV sheets, parallel or antiparallel, and supramolecularly or covalently linked, respectively, end-functionalized with molecular recognition units (MRUs) for orthogonal supramolecular assembly. We explored PPV sheets with multiple folds achieved by chain extension using alternating pCpd and phenyl-pentafluorophenyl β-hairpin turns. Using single-molecule polarization spectroscopy, we showed that folding occurs preferentially in multistranded over double-stranded PPV sheets. Our strategy toward protein-mimicking and foldable polymers demonstrates an efficient route toward higher ordered, well-characterized materials by taking advantage of polymers that naturally manifest secondary structures. Our studies demonstrate the retention of distinct architectures after complex assembly, a paradigm that we believe may extend to other polymeric folding systems.
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Affiliation(s)
- Margarita Milton
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Ru Deng
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Arielle Mann
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Chengyuan Wang
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Danni Tang
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Marcus Weck
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
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2
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Jiang P, Wang Z, Moxey GJ, Morshedi M, Barlow A, Wang G, Quintana C, Zhang C, Cifuentes MP, Humphrey MG. Syntheses and quadratic nonlinear optical properties of 2,7-fluorenylene- and 1,4-phenylene-functionalized o-carboranes. Dalton Trans 2019; 48:12549-12559. [PMID: 31367717 DOI: 10.1039/c9dt02645b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
o-Carboranes C-functionalized by (4-substituted-phen-1-yl)ethynyl-1,4-phenyl groups or (2-substituted-fluoren-7-yl)ethynyl-2,7-fluorenyl groups, in which the pendant functionalization is electron-withdrawing nitro or electron-donating diphenylamino groups, have been synthesized and in many cases structurally characterized. Diphenylamino-containing examples coupled via the two π-delocalizable bridges to the electron-accepting o-carborane unit exhibit the greater quadratic optical nonlinearities at 1064 nm (hyper-Rayleigh scattering, ns pulses), the nonlinearities also increasing on proceeding from 1,4-phenylene- to 2,7-fluorenylene-containing bridge. The most NLO-efficient example 2-(n-butyl)-1-(2-((9,9-di(n-butyl)-2-(N,N-diphenylamino)-9H-fluoren-7-yl)ethynyl)-9,9-di(n-butyl)-9H-fluoren-7-yl)-1,2-ortho-carborane, consisting of diphenylamino donor, fluorenyl-containing bridge, o-carborane acceptor, and solubilizing n-butyl units, exhibits large 〈β〉HRS (230 × 10-30 esu) and frequency-independent (two-level model) 〈β0〉 (96 × 10-30 esu) values. Coupling two (2-((9,9-di(n-butyl)-2-(N,N-diphenylamino)-9H-fluoren-7-yl)ethynyl)-9,9-di(n-butyl)-9H-fluoren-7-yl) units to the 1,2-ortho-carborane core affords a di-C-functionalized compound with enhanced nonlinearities (309 × 10-30 esu and 129 × 10-30 esu, respectively).
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Affiliation(s)
- Peng Jiang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
| | - Zhaojin Wang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
| | - Graeme J Moxey
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Mahbod Morshedi
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Adam Barlow
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Genmiao Wang
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Cristóbal Quintana
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Chi Zhang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
| | - Marie P Cifuentes
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China. and Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Mark G Humphrey
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China. and Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
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3
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Conjugation break spacers and flexible linkers as tools to engineer the properties of semiconducting polymers. Polym J 2018. [DOI: 10.1038/s41428-018-0069-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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4
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Elacqua E, Manning KB, Lye DS, Pomarico SK, Morgia F, Weck M. Supramolecular Multiblock Copolymers Featuring Complex Secondary Structures. J Am Chem Soc 2017; 139:12240-12250. [DOI: 10.1021/jacs.7b06201] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Elizabeth Elacqua
- Department of Chemistry and
Molecular Design Institute, New York University, New York, New York 10003, United States
| | - Kylie B. Manning
- Department of Chemistry and
Molecular Design Institute, New York University, New York, New York 10003, United States
| | - Diane S. Lye
- Department of Chemistry and
Molecular Design Institute, New York University, New York, New York 10003, United States
| | - Scott K. Pomarico
- Department of Chemistry and
Molecular Design Institute, New York University, New York, New York 10003, United States
| | - Federica Morgia
- Department of Chemistry and
Molecular Design Institute, New York University, New York, New York 10003, United States
| | - Marcus Weck
- Department of Chemistry and
Molecular Design Institute, New York University, New York, New York 10003, United States
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5
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Zhao X, Xue G, Qu G, Singhania V, Zhao Y, Butrouna K, Gumyusenge A, Diao Y, Graham KR, Li H, Mei J. Complementary Semiconducting Polymer Blends: Influence of Side Chains of Matrix Polymers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01354] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Guobiao Xue
- MOE
Key Laboratory of Macromolecule Synthesis and Functionalization, State
Key Laboratory of Silicon Materials, Department of Polymer Science
and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Ge Qu
- Department of Chemical & Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | | | | | - Kamal Butrouna
- Department
of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | | | - Ying Diao
- Department of Chemical & Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Kenneth R. Graham
- Department
of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Hanying Li
- MOE
Key Laboratory of Macromolecule Synthesis and Functionalization, State
Key Laboratory of Silicon Materials, Department of Polymer Science
and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
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6
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Mansha M, Sohail M, Ullah N. Synthesis, characterization, and properties of new 3-hexyl-2,5-diphenylthiophene: Phenylene vinylenes copolymers as colorimetric sensor for iodide anion. J Appl Polym Sci 2017. [DOI: 10.1002/app.44948] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Muhammad Mansha
- Chemistry Department; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
- Centre of Research Excellence in Nanotechnology; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Manzar Sohail
- Centre of Research Excellence in Nanotechnology; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Nisar Ullah
- Chemistry Department; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
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7
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Zhao Y, Zhao X, Roders M, Gumyusenge A, Ayzner AL, Mei J. Melt-Processing of Complementary Semiconducting Polymer Blends for High Performance Organic Transistors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605056. [PMID: 27918118 DOI: 10.1002/adma.201605056] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 10/26/2016] [Indexed: 06/06/2023]
Abstract
Melt-processing of complementary semiconducting polymer blends provides an average charge carrier mobility of 0.4 cm2 V-1 s-1 and current on/off ratios higher than 105 , a record performance for melt-processed organic field-effect transistors.
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Affiliation(s)
- Yan Zhao
- Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
| | - Xikang Zhao
- Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
| | - Michael Roders
- Department of Chemistry and Biochemistry, University of California at Santa Cruz, CA, 95064, USA
| | | | - Alexander L Ayzner
- Department of Chemistry and Biochemistry, University of California at Santa Cruz, CA, 95064, USA
| | - Jianguo Mei
- Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
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8
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Shao B, Zhu X, Plunkett KN, Vanden Bout DA. Controlling the folding of conjugated polymers at the single molecule level via hydrogen bonding. Polym Chem 2017. [DOI: 10.1039/c6py01871h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In this manuscript, we report a design strategy to control polychromophore polymer folding at the single molecule level through hydrogen-bonding (H-bonding) interactions.
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Affiliation(s)
- Beiyue Shao
- Center for Nano- and Molecular Science and Technology
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
| | - Xinju Zhu
- Department of Chemistry and Biochemistry and the Materials Technology Center
- Southern Illinois University
- Carbondale
- USA
| | - Kyle N. Plunkett
- Department of Chemistry and Biochemistry and the Materials Technology Center
- Southern Illinois University
- Carbondale
- USA
| | - David A. Vanden Bout
- Center for Nano- and Molecular Science and Technology
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
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9
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Erdmann T, Fabiano S, Milián-Medina B, Hanifi D, Chen Z, Berggren M, Gierschner J, Salleo A, Kiriy A, Voit B, Facchetti A. Naphthalenediimide Polymers with Finely Tuned In-Chain π-Conjugation: Electronic Structure, Film Microstructure, and Charge Transport Properties. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:9169-9174. [PMID: 27572671 DOI: 10.1002/adma.201602923] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 07/25/2016] [Indexed: 06/06/2023]
Abstract
Naphthalenediimide-based random copolymers (PNDI-TVTx) with different π-conjugated dithienylvinylene (TVT) versus π-nonconjugated dithienylethane (TET) unit ratios (x = 100→0%) are investigated. The PNDI-TVTx-transistor electron/hole mobilities are affected differently, a result rationalized by molecular orbital topologies and energies, with hole mobility vanishing but electron mobility decreasing only by ≈2.5 times when going from x = 100% to 40%.
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Affiliation(s)
- Tim Erdmann
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, 01069, Dresden, Germany
- Technische Universität Dresden, Center for Advancing Electronics Dresden (cfaed), 01062, Dresden, Germany
- Polyera Corporation, 8045 Lamon Avenue, Skokie, IL, 60077, USA
| | - Simone Fabiano
- Polyera Corporation, 8045 Lamon Avenue, Skokie, IL, 60077, USA
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74, Norrköping, Sweden
| | - Begoña Milián-Medina
- Department of Physical Chemistry, Faculty of Chemistry, University of Valencia, C/Dr. Moliner, 50, 46100, Burjassot - València, Spain
- Madrid Institute for Advanced Studies IMDEA in Nanoscience, Ciudad Universitaria de Cantoblanco, C/Faraday 9, 28049, Madrid, Spain
| | - David Hanifi
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Zhihua Chen
- Polyera Corporation, 8045 Lamon Avenue, Skokie, IL, 60077, USA
| | - Magnus Berggren
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74, Norrköping, Sweden
| | - Johannes Gierschner
- Madrid Institute for Advanced Studies IMDEA in Nanoscience, Ciudad Universitaria de Cantoblanco, C/Faraday 9, 28049, Madrid, Spain.
| | - Alberto Salleo
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
| | - Anton Kiriy
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, 01069, Dresden, Germany.
- Technische Universität Dresden, Center for Advancing Electronics Dresden (cfaed), 01062, Dresden, Germany.
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, 01069, Dresden, Germany.
- Technische Universität Dresden, Center for Advancing Electronics Dresden (cfaed), 01062, Dresden, Germany.
| | - Antonio Facchetti
- Polyera Corporation, 8045 Lamon Avenue, Skokie, IL, 60077, USA.
- Department of Chemistry and Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.
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10
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Zhu X, Shao B, Vanden Bout DA, Plunkett KN. Directing the Conformation of Oligo(phenylenevinylene) Polychromophores with Rigid, Nonconjugatable Morphons. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00067] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Xinju Zhu
- Department
of Chemistry and Biochemistry and the Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901, United States
| | - Beiyue Shao
- Center
for Nano- and Molecular Science and Technology, Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - David A. Vanden Bout
- Center
for Nano- and Molecular Science and Technology, Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Kyle N. Plunkett
- Department
of Chemistry and Biochemistry and the Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901, United States
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11
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Zhao X, Zhao Y, Ge Q, Butrouna K, Diao Y, Graham KR, Mei J. Complementary Semiconducting Polymer Blends: The Influence of Conjugation-Break Spacer Length in Matrix Polymers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00050] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | | | - Qu Ge
- Department of Chemical & Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Kamal Butrouna
- Department
of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Ying Diao
- Department of Chemical & Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Kenneth R. Graham
- Department
of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
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12
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Yang J, Huang Y, Zhu H, Huang W, Wang W. Emission-Tunable Multicolor Graphene Molecules with Controllable Synthesis, Excellent Optical Properties, and Specific Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7938-7947. [PMID: 26974338 DOI: 10.1021/acsami.6b00832] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Series of graphene molecules with varied emission colors have been prepared by oxidative cyclodehydrogenation using anhydrous ferric chloride (FeCl3) as the catalyst under mild conditions. By controlling the oxidation time in the initial step only, molecules with different fluorescence colors are conveniently obtained. New colors can be recorded evidently because of the stepwise and controllable process, which highly related to the conjugation length. Blue emissive starting compounds in the solid state can be transformed into orange upon brief oxidation, whereas green emissive oligomers are varied to red with an emission wavelength redshift about 123 nm. Cyclic voltammetry measurements performed can give the corresponding data, which verify the results drawn from the UV and PL spectroscope. The gradual change of conjugation length with tunable emission is confirmed in the MALDI-TOF study as well. Further characterizations indicate that the graphene molecules possess satisfactory optical properties, which are highly emissive both in solution and in the solid state because of the alkyl group. In addition, the good thermal stability and the self-assembly of graphene molecules suggest that they are promising candidates for high-tech applications. Furthermore, the fabricated field-effect transistors possess the nice performance, whose mobilities are about 0.57 cm(2) V(-1) s(-1) with an on-off ratio of 1 × 10(4) and 0.81 cm(2) V(-1) s(-1) with an on-off ratio of 1 × 10(3), respectively.
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Affiliation(s)
- Junwei Yang
- 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, P. R. China
| | - Yuli Huang
- 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, P. R. China
| | - Haoyun Zhu
- 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, P. R. China
| | - Wei Huang
- 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, P. R. China
| | - Weizhi Wang
- 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, P. R. China
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13
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Lucas JM, Labastide JA, Wei L, Tinkham JS, Barnes MD, Lahti PM. Carpenter’s Rule Folding in Rigid–Flexible Block Copolymers with Conjugation-Interrupting, Flexible Tethers Between Oligophenylenevinylenes. J Phys Chem A 2015; 119:8010-20. [DOI: 10.1021/acs.jpca.5b02295] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeffrey M. Lucas
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Joelle A. Labastide
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Lang Wei
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Jonathan S. Tinkham
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Michael D. Barnes
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Paul M. Lahti
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
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14
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Gasperini A, Bivaud S, Sivula K. Controlling conjugated polymer morphology and charge carrier transport with a flexible-linker approach. Chem Sci 2014. [DOI: 10.1039/c4sc02073a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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15
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Zhu X, Plunkett KN. Controlled Regioregularity in Oligo(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylenes. J Org Chem 2014; 79:7093-102. [DOI: 10.1021/jo501266g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xinju Zhu
- Department
of Chemistry and
Biochemistry and the Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901, United States
| | - Kyle N. Plunkett
- Department
of Chemistry and
Biochemistry and the Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901, United States
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16
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Geyer B, Röhner S, Lorenz G, Kandelbauer A. Designing oligomeric ethylene terephtalate building blocks by chemical recycling of polyethylene terephtalate. J Appl Polym Sci 2013. [DOI: 10.1002/app.39786] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Björn Geyer
- Reutlingen Research Institute (RRI); Reutlingen University; Germany
| | - Stefan Röhner
- Reutlingen Research Institute (RRI); Reutlingen University; Germany
| | - Günter Lorenz
- Reutlingen Research Institute (RRI); Reutlingen University; Germany
- School of Applied Chemistry; Reutlingen University; Alteburgstrasse 150 72762 Reutlingen Germany
| | - Andreas Kandelbauer
- Reutlingen Research Institute (RRI); Reutlingen University; Germany
- School of Applied Chemistry; Reutlingen University; Alteburgstrasse 150 72762 Reutlingen Germany
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17
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Parshina LN, Tantsyrev AP, Grishchenko LA, Trofimov BA. Nanosized Pd(0)-arabinogalactan composites as catalysts in the Sonogashira reaction. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2013. [DOI: 10.1134/s1070428013030160] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Caricato M, Coluccini C, Vander Griend DA, Forni A, Pasini D. From red to blue shift: switching the binding affinity from the acceptor to the donor end by increasing the π-bridge in push–pull chromophores with coordinative ends. NEW J CHEM 2013. [DOI: 10.1039/c3nj00466j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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