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El Haitami A, Resmerita AM, Ursu LE, Asandulesa M, Cantin S, Farcas A. Novel Insight into the Photophysical Properties and 2D Supramolecular Organization of Poly(3,4-ethylenedioxythiophene)/Permodified Cyclodextrins Polyrotaxanes at the Air-Water Interface. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4757. [PMID: 37445070 DOI: 10.3390/ma16134757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/26/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023]
Abstract
Two poly(3,4-ethylenedioxythiophene) polyrotaxanes (PEDOT∙TMe-βCD and PEDOT∙TMe-γCD) end-capped by pyrene (Py) were synthesized by oxidative polymerization of EDOT encapsulated into TMe-βCD or TMe-γCD cavities with iron (III) chloride (FeCl3) in water and chemically characterized. The effect of TMe-βCD or TMe-γCD encapsulation of PEDOT backbones on the molecular weight, thermal stability, and solubility were investigated in depth. UV-vis absorption, fluorescence (FL), phosphorescence (PH), quantum efficiencies, and lifetimes in water and acetonitrile were also explored, together with their surface morphology and electrical properties. Furthermore, dynamic light scattering was used to study the hydrodynamic diameter (DH) and z-potential (ZP-ζ) of the water soluble fractions of PEDOT∙TMe-βCD and PEDOT∙TMe-γCD. PEDOT∙TMe-βCD and PEDOT∙TMe-γCD exhibited a sharp monodisperse peak with a DH of 55 ± 15 nm and 122 ± 32 nm, respectively. The ZP-ζ value decreased from -31.23 mV for PEDOT∙TMe-βCD to -20.38 mV for PEDOT∙TMe-γCD, indicating that a negatively charged layer covers their surfaces. Surface pressure-area isotherms and Brewster angle microscopy (BAM) studies revealed the capability of the investigated compounds to organize into sizeable and homogeneous 2D supramolecular assemblies at the air-water interface. The control of the 2D monolayer organization through the thermodynamic parameters of PEDOT∙TMe-βCD and PEDOT∙TMe-γCD suggests potential for a wide range of optoelectronic applications.
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Affiliation(s)
- Alae El Haitami
- Laboratory of Physical Chemistry of Polymers and Interfaces, CY Cergy Paris Université, F95000 Cergy, France
| | - Ana-Maria Resmerita
- "Petru Poni" Institute of Macromolecular Chemistry, Romanian Academy, Grigore Ghica Voda Alley, 41A, 700487 Iasi, Romania
| | - Laura Elena Ursu
- "Petru Poni" Institute of Macromolecular Chemistry, Romanian Academy, Grigore Ghica Voda Alley, 41A, 700487 Iasi, Romania
| | - Mihai Asandulesa
- "Petru Poni" Institute of Macromolecular Chemistry, Romanian Academy, Grigore Ghica Voda Alley, 41A, 700487 Iasi, Romania
| | - Sophie Cantin
- Laboratory of Physical Chemistry of Polymers and Interfaces, CY Cergy Paris Université, F95000 Cergy, France
| | - Aurica Farcas
- "Petru Poni" Institute of Macromolecular Chemistry, Romanian Academy, Grigore Ghica Voda Alley, 41A, 700487 Iasi, Romania
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Farcas A, Resmerita AM, Balan-Porcarasu M, Cojocaru C, Peptu C, Sava I. Inclusion Complexes of 3,4-Ethylenedioxythiophene with Per-Modified β- and γ-Cyclodextrins. Molecules 2023; 28:molecules28083404. [PMID: 37110637 PMCID: PMC10143540 DOI: 10.3390/molecules28083404] [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: 04/04/2023] [Revised: 04/11/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Herein, we report the synthesis of inclusion complexes (ICs) based on 3,4-ethylenedioxythiophene (EDOT) with permethylated β-cyclodextrins (TMe-βCD) and permethylated γ-cyclodextrins (TMe-γCD) host molecules. To prove the synthesis of such ICs, molecular docking simulation, UV-vis titrations in water, 1H-NMR, and H-H ROESY, as well as matrix-assisted laser desorption ionization mass spectroscopy (MALDI TOF MS) and thermogravimetric analysis (TGA) were carried out on each of the EDOT∙TMe-βCD and EDOT∙TMe-γCD samples. The results of computational investigations reveal the occurrence of hydrophobic interactions, which contribute to the insertion of the EDOT guest inside the macrocyclic cavities and a better binding of the neutral EDOT to TMe-βCD. The H-H ROESY spectra show correlation peaks between H-3 and H-5 of hosts and the protons of the guest EDOT, suggesting that the EDOT molecule is included inside the cavities. The MALDI TOF MS analysis of the EDOT∙TMe-βCD solutions clearly reveals the presence of MS peaks corresponding to sodium adducts of the species associated with the complex formation. The IC preparation shows remarkable improvements in the physical properties of EDOT, rendering it a plausible alternative to increasing its aqueous solubility and thermal stability.
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Affiliation(s)
- Aurica Farcas
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | | | | | - Corneliu Cojocaru
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Cristian Peptu
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Ion Sava
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
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El Haitami A, Resmerita AM, Fichet O, Cantin S, Aubert PH, Farcas A. Synthesis, Photophysics, and Langmuir Films of Polyfluorene/Permodified Cyclodextrin Polyrotaxanes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11406-11413. [PMID: 34528811 DOI: 10.1021/acs.langmuir.1c02014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In the present study, we investigated the effect of permodified 2,3,6-tri-O-trimethylsilyl β- and γ-cyclodextrin (TMS·β-CD, TMS·γ-CD) encapsulation on the optical, electrochemical, morphological, and supramolecular arrangements of a poly[2,7'-(9,9-dioctylfluorene-alt-2',7-fluorene)] PF copolymer. For this purpose, the photophysical properties and Langmuir monolayer formation of PF·TMS·β-CD and PF·TMS·γ-CD polyrotaxanes were investigated and compared with those of the reference PF. Surface pressure-area isotherms and Brewster angle microscopy studies indicated the capability of both polyrotaxanes to organize into larger and homogeneous 2D supramolecular assemblies at the air-water interface. The obtained results suggest that the presence of the surrounding TMS·β-CD and TMS·γ-CD macrocycles on the PF backbones leads to changes in the conformation and hydrophobicity of the film surfaces. Our investigation offers a method to assess the impact of TMS-CD encapsulation on the control of 2D monolayer formation, with particular attention on the generation of stable PF monolayers for organic electronic devices.
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Affiliation(s)
| | | | | | | | | | - Aurica Farcas
- "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
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Ferreira A, Turchetti D, Santana A, Akcelrud L, Mascarenhas Y. Structural and morphological characterization of the crystallites from semicrystalline regions of poly (9,9′-dihexylfluorene). INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2021. [DOI: 10.1080/1023666x.2021.1968121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- André Ferreira
- Department of Materials Engineering, São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil
| | - Denis Turchetti
- Department of Chemistry, Paulo Scarpa Laboratory of Polymer (LaPPS), Federal University of Paraná, Curitiba, Brazil
| | - Alisson Santana
- Department of Chemistry, Paulo Scarpa Laboratory of Polymer (LaPPS), Federal University of Paraná, Curitiba, Brazil
| | - Leni Akcelrud
- Department of Chemistry, Paulo Scarpa Laboratory of Polymer (LaPPS), Federal University of Paraná, Curitiba, Brazil
| | - Yvonne Mascarenhas
- São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil
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Henrique S. Paulino P, Silva CF, De Almeida WB, Guimarães L, Nascimento CS. A theoretical study of poly(p-phenylenes) and their cyclodextrin-based insulated molecular wires. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Synthesis and photophysical properties of inclusion complexes between conjugated polyazomethines with γ-cyclodextrin and its tris-O-methylated derivative. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.01.067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Resmerita AM, Assaf KI, Lazar AI, Nau WM, Farcas A. Polyrotaxanes based on PEG-amine with cucurbit[7]uril, α-cyclodextrin and its tris-O-methylated derivative. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Farcas A, Assaf KI, Resmerita AM, Cantin S, Balan M, Aubert PH, Nau WM. Cucurbit[7]uril-based fluorene polyrotaxanes. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.08.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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