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Beiranvand M, Habibi D. The Pd(0) and Pd(II) SBA‐TU‐anchored catalysts in the Mizoroki-Heck and Suzuki-Miyaura cross-coupling reactions: A comparative catalytic study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2
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Burger NA, Meier G, Bouteiller L, Loppinet B, Vlassopoulos D. Dynamics and Rheology of Supramolecular Assemblies at Elevated Pressures. J Phys Chem B 2022; 126:6713-6724. [PMID: 36018571 DOI: 10.1021/acs.jpcb.2c03295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A methodology to investigate the linear viscoelastic properties of complex fluids at elevated pressures (up to 120 MPa) is presented. It is based on a dynamic light scattering (DLS) setup coupled with a stainless steel chamber, where the test sample is pressurized by means of an inert gas. The viscoelastic spectra are extracted through passive microrheology. We discuss an application to hydrogen-bonding motif 2,4-bis(2-ethylhexylureido)toluene (EHUT), which self-assembles into supramolecular structures (tubes and filaments) in apolar solvents dodecane and cyclohexane. High levels of pressure (roughly above 20 MPa) are found to slow down the terminal relaxation process; however, the increases in the entanglement plateau modulus and the associated persistence length are not significant. The concentration dependence of the plateau modulus, relaxation times (fast and slow), and correlation length is practically the same for all pressures and exhibits distinct power-law behavior in different regimes. Within the tube phase in dodecane, the relative viscosity increment is weakly enhanced with increasing pressure and reaches a plateau at about 60 MPa. In fact, depending on concentration, the application of pressure in the tube regime may lead to a transition from a viscous (unentangled) to a viscoelastic (partially entangled to well-entangled) solution. For well-entangled, long tubes, the extent of the plateau regime (ratio of high- to low-moduli crossover frequencies) increases with pressure. The collective information from these observations is summarized in a temperature-pressure state diagram. These findings provide ingredients for the formulation of a solid theoretical framework to better understand and exploit the role of pressure in the structure and dynamics of supramolecular polymers.
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Affiliation(s)
- Nikolaos A Burger
- Foundation for Research & Technology Hellas (FORTH), Institute for Electronic Structure & Laser, Heraklion 70013, Greece.,Department of Materials Science & Technology, University of Crete, Heraklion 70013, Greece
| | - Gerhard Meier
- Forschungszentrum Jülich, Biomacromolecular Systems and Processes (IBI-4), 52425 Jülich, Germany
| | - Laurent Bouteiller
- Sorbonne Université, CNRS, IPCM, Equipe Chimie des Polymères, 75005 Paris, France
| | - Benoit Loppinet
- Foundation for Research & Technology Hellas (FORTH), Institute for Electronic Structure & Laser, Heraklion 70013, Greece
| | - Dimitris Vlassopoulos
- Foundation for Research & Technology Hellas (FORTH), Institute for Electronic Structure & Laser, Heraklion 70013, Greece.,Department of Materials Science & Technology, University of Crete, Heraklion 70013, Greece
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3
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Genio FAF, Paderes MC. Functional Supramolecular Gels Comprised of Bis‐Urea Compounds and Cosmetic Solvents. ChemistrySelect 2021. [DOI: 10.1002/slct.202102367] [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)
- Frances Abygail F. Genio
- Institute of Chemistry University of the Philippines Diliman Quezon City 1101 Philippines
- Natural Sciences Research Institute University of the Philippines Diliman Quezon City 1101 Philippines
| | - Monissa C. Paderes
- Institute of Chemistry University of the Philippines Diliman Quezon City 1101 Philippines
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4
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Burger NA, Mavromanolakis A, Meier G, Brocorens P, Lazzaroni R, Bouteiller L, Loppinet B, Vlassopoulos D. Stabilization of Supramolecular Polymer Phase at High Pressures. ACS Macro Lett 2021; 10:321-326. [PMID: 35549059 DOI: 10.1021/acsmacrolett.0c00834] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We utilize dynamic light scattering (DLS) and passive microrheology to examine the phase behavior of a supramolecular polymer at very high pressures. The monomer, 2,4-bis(2-ethylhexylureido)toluene (EHUT), self-assembles into supramolecular polymeric structures in the nonpolar solvent cyclohexane by means of hydrogen bonding. By varying the concentration and temperature at atmospheric pressure, the formation of the viscoelastic network (at lower temperatures) and predominantly viscous phases, based on self-assembled tube and filament structures, respectively, has been established. The associated changes in the rheological properties have been attributed to a structural thickness transition. Here, we investigate the effects of pressure variation from atmospheric up to 1 kbar at a given concentration. We construct a temperature-pressure diagram that reveals the predominance of the viscoelastic network phase at high pressures. The transition from the viscoelastic network organization of the tubes to a weaker viscous-dominated structure of the filaments is rationalized by using the Clapeyron equation, which yields an associated volume change of about 8 Å3 per EHUT molecule. This change is further explained by means of Molecular Dynamics simulations of the two phases, which show a decrease in the molecular volume at the filament-tube transition, originating from increased intermolecular contacts in the tube with respect to the filament. These findings offer insights into the role of pressure in stabilizing self-assemblies.
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Affiliation(s)
- Nikolaos A. Burger
- Foundation for Research & Technology Hellas (FORTH), Institute for Electronic Structure and Laser, Heraklion 70013, Greece
- University of Crete, Department of Materials Science and Technology, Heraklion 70013, Greece
| | - Antonios Mavromanolakis
- Foundation for Research & Technology Hellas (FORTH), Institute for Electronic Structure and Laser, Heraklion 70013, Greece
| | - Gerhard Meier
- Forschungszentrum Jülich, Institute of Complex Systems (ICS-3), 52425 Jülich, Germany
| | - Patrick Brocorens
- University of Mons, Laboratory for Chemistry of Novel Materials, Materials Research Institute, 7000 Mons, Belgium
| | - Roberto Lazzaroni
- University of Mons, Laboratory for Chemistry of Novel Materials, Materials Research Institute, 7000 Mons, Belgium
| | - Laurent Bouteiller
- Sorbonne Université, CNRS, IPCM, Equipe Chimie des Polymères, 75005 Paris, France
| | - Benoit Loppinet
- Foundation for Research & Technology Hellas (FORTH), Institute for Electronic Structure and Laser, Heraklion 70013, Greece
| | - Dimitris Vlassopoulos
- Foundation for Research & Technology Hellas (FORTH), Institute for Electronic Structure and Laser, Heraklion 70013, Greece
- University of Crete, Department of Materials Science and Technology, Heraklion 70013, Greece
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Mabesoone MJ, Palmans ARA, Meijer EW. Solute-Solvent Interactions in Modern Physical Organic Chemistry: Supramolecular Polymers as a Muse. J Am Chem Soc 2020; 142:19781-19798. [PMID: 33174741 PMCID: PMC7705892 DOI: 10.1021/jacs.0c09293] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Indexed: 12/14/2022]
Abstract
Interactions between solvents and solutes are a cornerstone of physical organic chemistry and have been the subject of investigations over the last century. In recent years, a renewed interest in fundamental aspects of solute-solvent interactions has been sparked in the field of supramolecular chemistry in general and that of supramolecular polymers in particular. Although solvent effects in supramolecular chemistry have been recognized for a long time, the unique opportunities that supramolecular polymers offer to gain insight into solute-solvent interactions have become clear relatively recently. The multiple interactions that hold the supramolecular polymeric structure together are similar in strength to those between solute and solvent. The cooperativity found in ordered supramolecular polymers leads to the possibility of amplifying these solute-solvent effects and will shed light on extremely subtle solvation phenomena. As a result, many exciting effects of solute-solvent interactions in modern physical organic chemistry can be studied using supramolecular polymers. Our aim is to put the recent progress into a historical context and provide avenues toward a more comprehensive understanding of solvents in multicomponent supramolecular systems.
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Affiliation(s)
- Mathijs
F. J. Mabesoone
- Institute
for Complex Molecular Systems and the Laboratory of Macromolecular
and Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Anja R. A. Palmans
- Institute
for Complex Molecular Systems and the Laboratory of Macromolecular
and Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - E. W. Meijer
- Institute
for Complex Molecular Systems and the Laboratory of Macromolecular
and Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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Alvarenga BG, Raynal M, Bouteiller L, Sabadini E. Unexpected Solvent Influence on the Rheology of Supramolecular Polymers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00786] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Bruno G. Alvarenga
- Department
of Physical-Chemistry, Institute of Chemistry, University of Campinas − UNICAMP, Campinas, Brazil
| | - Matthieu Raynal
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie
des Polymères, 4 Place Jussieu, F-75005 Paris, France
| | - Laurent Bouteiller
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie
des Polymères, 4 Place Jussieu, F-75005 Paris, France
| | - Edvaldo Sabadini
- Department
of Physical-Chemistry, Institute of Chemistry, University of Campinas − UNICAMP, Campinas, Brazil
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Biswas A, Mukhopadhyay S, Singh RS, Pandey DS. Small Organic Non-gelators Evincing Radical Control over Morphology and Rheology of a Weak Metallogel. ChemistrySelect 2016. [DOI: 10.1002/slct.201600531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Arnab Biswas
- Department of Chemistry, Institute of Science; Banaras Hindu University; Varanasi - 221 005 Uttar Pradesh India
| | - Sujay Mukhopadhyay
- Department of Chemistry, Institute of Science; Banaras Hindu University; Varanasi - 221 005 Uttar Pradesh India
| | - Roop S. Singh
- Department of Chemistry, Institute of Science; Banaras Hindu University; Varanasi - 221 005 Uttar Pradesh India
| | - Daya S. Pandey
- Department of Chemistry, Institute of Science; Banaras Hindu University; Varanasi - 221 005 Uttar Pradesh India
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Isare B, Pensec S, Raynal M, Bouteiller L. Bisurea-based supramolecular polymers: From structure to properties11Dedicated to Professor Jean-Pierre Vairon on the occasion of his 78th birthday. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.06.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Catrouillet S, Fonteneau C, Bouteiller L, Delorme N, Nicol E, Nicolai T, Pensec S, Colombani O. Competition Between Steric Hindrance and Hydrogen Bonding in the Formation of Supramolecular Bottle Brush Polymers. Macromolecules 2013. [DOI: 10.1021/ma401167n] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sylvain Catrouillet
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Cécile Fonteneau
- UPMC Univ Paris
6, UMR 7610, Chimie des Polymères, and CNRS, UMR 7610, Chimie
des Polymères, 75005 Paris, France
| | - Laurent Bouteiller
- UPMC Univ Paris
6, UMR 7610, Chimie des Polymères, and CNRS, UMR 7610, Chimie
des Polymères, 75005 Paris, France
| | - Nicolas Delorme
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Erwan Nicol
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Taco Nicolai
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Sandrine Pensec
- UPMC Univ Paris
6, UMR 7610, Chimie des Polymères, and CNRS, UMR 7610, Chimie
des Polymères, 75005 Paris, France
| | - Olivier Colombani
- LUNAM Université,
Université du Maine, IMMM−UMR CNRS 6283, Université
du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
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Zhang Q, Qu DH, Wu J, Ma X, Wang Q, Tian H. A dual-modality photoswitchable supramolecular polymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:5345-5350. [PMID: 23560858 DOI: 10.1021/la4012444] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Covalent or noncovalent linked polymers with stimuli-responsive properties have been well researched as a kind of advanced functional materials. However, little effort has been devoted to establishing a bridge for switching between covalent polymers and noncovalent polymers. Actually, such unitive system is promising because it can combine their chemical advantages of two types of polymers in a single and tunable platform. Herein, by taking advantage of reversible photodimerization of coumarins and host-guest assemblies with γ-cyclodextrin (γ-CD), we demonstrate a simple and effective way to construct a dual-modality supramolecular polymer, which can be switched between a noncovalent polymer and its corresponding covalent polymer in response to light stimuli. Moreover, this unique switchable polymer can also be employed to construct a dual-stimuli responsive supramolecular hydrogel with the surfactant cetyl trimethylammonium bromide (CTAB). This methodology establishes a bridge between the two "polymer mansions" and is promising to open a new class of photoswitchable materials.
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Affiliation(s)
- Qiwei Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, People's Republic of China
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11
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Ohsedo Y, Oono M, Tanaka A, Watanabe H. Mixing induced thixotropy of a two-component system of alkylurea organogelators having different alkyl chains. NEW J CHEM 2013. [DOI: 10.1039/c3nj00450c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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