1
|
Soman B, Schweizer KS, Evans CM. Fragile Glass Formation and Non-Arrhenius Upturns in Ethylene Vitrimers Revealed by Dielectric Spectroscopy. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Bhaskar Soman
- Department of Materials Science and Engineering, University of Illinois, Urbana-Champaign, Urbana, Illinois61801, United States
| | - Kenneth S. Schweizer
- Department of Materials Science and Engineering, University of Illinois, Urbana-Champaign, Urbana, Illinois61801, United States
| | - Christopher M. Evans
- Department of Materials Science and Engineering, University of Illinois, Urbana-Champaign, Urbana, Illinois61801, United States
| |
Collapse
|
2
|
Brás AR, Arizaga A, Sokolova D, Agirre U, Viciosa MT, Radulescu A, Prévost SF, Kruteva M, Pyckhout-Hintzen W, Schmidt AM. Influence of Polymer Polarity and Association Strength on the Properties of Poly(alkyl ether)-Based Supramolecular Melts. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Ana Rita Brás
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
| | - Ana Arizaga
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
| | - Daria Sokolova
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
- Chemistry Department, University of Basel, BPR 1096/4058Basel, Schweiz
| | - Uxue Agirre
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
| | - Maria Teresa Viciosa
- IN − Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001Lisbon, Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Aurel Radulescu
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
| | | | - Margarita Kruteva
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
| | - Wim Pyckhout-Hintzen
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
| | | |
Collapse
|
3
|
Zhang X, Wei W, Xiong H. Hierarchical Dynamics of Nonsticky Molecular Nanoparticle-Tethered Polymers: End and Topology Effects. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
4
|
Xia Y, Chen H, Aitken B, Sen S. Rheological characterization of complex dynamics in Na-Zn metaphosphate glass-forming liquids. J Chem Phys 2021; 155:054503. [PMID: 34364353 DOI: 10.1063/5.0060360] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The viscoelastic behavior and shear relaxation in supercooled [NaPO3]x[Zn(PO3)2]1-x metaphosphate liquids with 0.2 ≤ x ≤ 1.0 are investigated using a combination of small amplitude oscillatory and steady shear parallel plate rheometry, resonant ultrasound spectroscopy, and differential scanning calorimetry. The results demonstrate that these liquids are thermorheologically complex with the coexistence of a fast and a slow relaxation process, which could be attributed to the segmental motion of the phosphate chains and the Zn-O bond scission/renewal dynamics, respectively. The segmental motion of the phosphate chains is found to be the dominant process associated with the shear relaxation for all metaphosphate liquids. The compositional evolution of the calorimetric fragility of these liquids is shown to be related to the conformational entropy of the constituent phosphate chains, which is manifested by the width of the relaxation time distribution for the segmental chain motion. This entropy decreases and the temporal coupling between the chain dynamics and Zn-O bond scission-renewal increases with the increasing Zn content as the higher field strength Zn modifier ions provide more effective cross-linking between the phosphate chains.
Collapse
Affiliation(s)
- Yiqing Xia
- Department of Materials Science and Engineering, University of California at Davis, Davis, California 95616, USA
| | - Hao Chen
- Department of Materials Science and Engineering, University of California at Davis, Davis, California 95616, USA
| | - Bruce Aitken
- Science and Technology Division, Corning Inc., Corning, New York 14831, USA
| | - Sabyasachi Sen
- Department of Materials Science and Engineering, University of California at Davis, Davis, California 95616, USA
| |
Collapse
|
5
|
The dielectric response of phenothiazine-based glass-formers with different molecular complexity. Sci Rep 2021; 11:15816. [PMID: 34349137 PMCID: PMC8338989 DOI: 10.1038/s41598-021-95127-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 07/21/2021] [Indexed: 02/07/2023] Open
Abstract
We examined a series of structurally related glass-forming liquids in which a phenothiazine-based tricyclic core (PTZ) was modified by attaching n-alkyl chains of different lengths (n = 4, 8, 10). We systematically disentangled the impact of chemical structure modification on the intermolecular organization and molecular dynamics probed by broadband dielectric spectroscopy (BDS). X-ray diffraction (XRD) patterns evidenced that all PTZ-derivatives are not 'ordinary' liquids and form nanoscale clusters. The chain length has a decisive impact on properties, exerting a plasticizing effect on the dynamics. Its elongation decreases glass transition temperature with slight impact on fragility. The increase in the medium-range order was manifested as a broadening of the dielectric loss peak reflected in the lower value of stretching parameter βKWW. A disagreement with the behavior observed for non-associating liquids was found as a deviation from the anti-correlation between the value of βKWW and the relaxation strength of the α-process. Besides, to explain the broadening of loss peak in PTZ with the longest (decyl) chain a slow Debye process was postulated. In contrast, the sample with the shortest alkyl chain and a less complex structure with predominant supramolecular assembly through π-π stacking exhibits no clear Debye-mode fingerprints. The possible reasons are also discussed.
Collapse
|
6
|
Heczko D, Jurkiewicz K, Grelska J, Kamiński K, Paluch M, Kamińska E. Influence of High Pressure on the Local Order and Dynamical Properties of the Selected Azole Antifungals. J Phys Chem B 2020; 124:11949-11961. [PMID: 33325713 DOI: 10.1021/acs.jpcb.0c08083] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dielectric studies under various temperature (T) and pressure (p) conditions on five active pharmaceutical ingredients (APIs) with antifungal properties-itraconazole (ITZ), posaconazole (POS), terconazole (TER), ketoconazole (KET), and fluconazole (FLU)-were carried out. We have thoroughly studied the connection between the pressure coefficient of the glass transition temperature (dTg/dp) and the activation volume of both relaxation modes (ΔVα, ΔVδ/α') with respect to the molecular weight (Mw) or molar volume (Vm) in these systems. Besides, high pressure data revealed that the time scale separation between α- and δ- or α'-processes increases with pressure in ITZ and TER. What is more, the activation entropy, which is a measure of cooperativity, calculated from the Eyring model for the secondary (β)-relaxation in ITZ and POS, increased and decreased, respectively, in the compressed samples. To understand these peculiar results, we have carried out X-ray diffraction (XRD) measurements on the pressure-densified glasses and found that pressure may induce frustration in molecular organization and destroy the medium-range order while enhancing the short-range correlations between molecules. This finding allowed us to conclude that varying molecular spatial arrangement is responsible for the extraordinary dynamical behavior of ITZ, POS, and TER at high pressure.
Collapse
Affiliation(s)
- Dawid Heczko
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jagiellońska 4, 41-200 Sosnowiec, Poland
| | - Karolina Jurkiewicz
- Institute of Physics, University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
| | - Joanna Grelska
- Institute of Physics, University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
| | - Kamil Kamiński
- Institute of Physics, University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
| | - Marian Paluch
- Institute of Physics, University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
| | - Ewa Kamińska
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jagiellońska 4, 41-200 Sosnowiec, Poland
| |
Collapse
|
7
|
Arrese-Igor S, Alegría A, Colmenero J. Signature of hydrogen bonding association in the dielectric signal of polyalcohols. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
8
|
Talik A, Tarnacka M, Geppert-Rybczyńska M, Hachuła B, Bernat R, Chrzanowska A, Kaminski K, Paluch M. Are hydrogen supramolecular structures being suppressed upon nanoscale confinement? The case of monohydroxy alcohols. J Colloid Interface Sci 2020; 576:217-229. [PMID: 32417683 DOI: 10.1016/j.jcis.2020.04.084] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 04/15/2020] [Accepted: 04/20/2020] [Indexed: 11/27/2022]
Abstract
In this paper, the molecular dynamics, H-bonding pattern and wettability of the primary and secondary monohydroxyalcohols, 2-ethyl-1-hexanol (2E1H), 2-ethyl-1-butanol (2E1B) and 5-methyl-3-heptanol (5M3H) infiltrated into native and functionalized silica and alumina pores having pore diameters, d = 4 nm and d = 10 nm, have been studied with the use of Broadband Dielectric (BDS) and Fourier Transform InfraRed (FTIR) spectroscopies, as well as contact angle measurements. We found significant differences in the behavior of alcohols forming chain- (2E1H, 2E1B) or micelle-like (5M3H) supramolecular structures despite of their similarities in the wettability and interfacial energy. It turned out that nanoassociates as well as H-bonds are more or less affected by the confinement dependently on the chemical structure and alcohol order. Moreover, a peculiar behavior of the self-assemblies at the interface was noted in the latter material (5M3H). Finally, it was found that irrespectively to the sample, type of pores, functionalization, the temperature evolution of Debye relaxation times, τD, of the confined systems deviates from the bulk behavior always at similar τD due to vitrification of the interfacial layer. This finding is a clear indication that unexpectedly dynamics (mobility) of the supramolecular structures close to the hydrophilic and hydrophobic surfaces is similar in each system.
Collapse
Affiliation(s)
- Agnieszka Talik
- Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland; Silesian Center of Education and Interdisciplinary Research, University of Silesia in Katowice, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland.
| | - Magdalena Tarnacka
- Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland; Silesian Center of Education and Interdisciplinary Research, University of Silesia in Katowice, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | | | - Barbara Hachuła
- Institute of Chemistry, University of Silesia in Katowice, Szkolna 9, 40-006 Katowice, Poland
| | - Roksana Bernat
- Institute of Chemistry, University of Silesia in Katowice, Szkolna 9, 40-006 Katowice, Poland
| | - Agnieszka Chrzanowska
- Department of Physical Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031, Lublin, Poland
| | - Kamil Kaminski
- Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland; Silesian Center of Education and Interdisciplinary Research, University of Silesia in Katowice, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland.
| | - Marian Paluch
- Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland; Silesian Center of Education and Interdisciplinary Research, University of Silesia in Katowice, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| |
Collapse
|
9
|
Wu S, Cai C, Li F, Tan Z, Dong S. Deep Eutectic Supramolecular Polymers: Bulk Supramolecular Materials. Angew Chem Int Ed Engl 2020; 59:11871-11875. [DOI: 10.1002/anie.202004104] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Indexed: 01/14/2023]
Affiliation(s)
- Shuanggen Wu
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 Hunan P. R. China
| | - Changyong Cai
- College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. China
| | - Fenfang Li
- College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. China
| | - Zhijian Tan
- Institute of Bast Fiber Crops Chinese Academy of Agricultural Sciences Changsha 410205 P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 Hunan P. R. China
| |
Collapse
|
10
|
Wu S, Cai C, Li F, Tan Z, Dong S. Deep Eutectic Supramolecular Polymers: Bulk Supramolecular Materials. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shuanggen Wu
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 Hunan P. R. China
| | - Changyong Cai
- College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. China
| | - Fenfang Li
- College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. China
| | - Zhijian Tan
- Institute of Bast Fiber Crops Chinese Academy of Agricultural Sciences Changsha 410205 P. R. China
| | - Shengyi Dong
- College of Chemistry and Chemical Engineering Hunan University Changsha 410082 Hunan P. R. China
| |
Collapse
|
11
|
Golkaram M, Loos K. A Critical Approach to Polymer Dynamics in Supramolecular Polymers. Macromolecules 2019; 52:9427-9444. [PMID: 31894159 PMCID: PMC6933822 DOI: 10.1021/acs.macromol.9b02085] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/01/2019] [Indexed: 12/15/2022]
Abstract
Over the past few years, the concurrent (1) development of polymer synthesis and (2) introduction of new mathematical models for polymer dynamics have evolved the classical framework for polymer dynamics once established by Doi-Edwards/de Gennes. Although the analysis of supramolecular polymer dynamics based on linear rheology has improved a lot recently, there are a large number of insecurities behind the conclusions, which originate from the complexity of these novel systems. The interdependent effect of supramolecular entities (stickers) and chain dynamics can be overwhelming depending on the type and location of stickers as well as the architecture and chemistry of polymers. This Perspective illustrates these parameters and strives to determine what is still missing and has to be improved in the future works.
Collapse
Affiliation(s)
- Milad Golkaram
- Macromolecular Chemistry
and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Katja Loos
- Macromolecular Chemistry
and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| |
Collapse
|
12
|
Honorio G, Bierwirth SP, Gainaru C, Böhmer R. Nonlinear electrical and rheological spectroscopies identify structural and supramolecular relaxations in a model peptide. SOFT MATTER 2019; 15:4334-4345. [PMID: 31073564 DOI: 10.1039/c9sm00434c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Supercooled liquid secondary amides display an electrical absorption peak characterized by an almost Debye-like shape, indicative of a close-to-exponential polarization response. This response, believed to be supramolecular in nature, is so enormously intense that the amide's structural process, contributing only a few percent to the total relaxation strength, is hard to resolve reliably using standard dielectric spectroscopy. To overcome this issue, nonlinear dielectric spectroscopy involving field-induced structural recovery and temperature-induced physical aging, was applied near the calorimetric glass transition of a mixture of N-methylformamide and N-ethylacetamide. Without the need to rely on cumbersome deconvolution procedures, it is thus demonstrated that the supramolecular response is by a factor of 6 slower than the structural relaxation. Conversely, in linear rheological experiments only the structural relaxation could be resolved, but not the supramolecular one. However, medium-amplitude oscillatory shear experiments carried out at 160 K do reveal the supramolecular process. Hence, the combination of linear and nonlinear mechanical measurements corroborates the dielectrically uncovered spectral separation of the two processes.
Collapse
Affiliation(s)
- Gabriel Honorio
- Fakultät Physik, Technische Universität Dortmund, 44221 Dortmund, Germany
| | | | | | | |
Collapse
|
13
|
Zhu W, Aitken BG, Sen S. Observation of a dynamical crossover in the shear relaxation processes in supercooled selenium near the glass transition. J Chem Phys 2019; 150:094502. [DOI: 10.1063/1.5086173] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Weidi Zhu
- Department of Materials Science and Engineering, University of California at Davis, Davis, California 95616, USA
| | - Bruce G. Aitken
- Science and Technology Division, Corning Inc., Corning, New York 14831, USA
| | - Sabyasachi Sen
- Department of Materials Science and Engineering, University of California at Davis, Davis, California 95616, USA
| |
Collapse
|
14
|
Arrese-Igor S, Alegría A, Colmenero J. Multimodal character of shear viscosity response in hydrogen bonded liquids. Phys Chem Chem Phys 2018; 20:27758-27765. [DOI: 10.1039/c8cp04183k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-simple viscosity response of 2E1H alcohol forming supramolecular aggregates.
Collapse
Affiliation(s)
- S. Arrese-Igor
- Centro de Física de Materiales (CSIC-UPV/EHU)
- Materials Physics Center (MPC)
- 20018 San Sebastián
- Spain
| | - A. Alegría
- Centro de Física de Materiales (CSIC-UPV/EHU)
- Materials Physics Center (MPC)
- 20018 San Sebastián
- Spain
- Departamento de Física de Materiales UPV/EHU
| | - J. Colmenero
- Centro de Física de Materiales (CSIC-UPV/EHU)
- Materials Physics Center (MPC)
- 20018 San Sebastián
- Spain
- Departamento de Física de Materiales UPV/EHU
| |
Collapse
|
15
|
Rams-Baron M, Jędrzejowska A, Dulski M, Wolnica K, Geirhos K, Lunkenheimer P, Paluch M. Unusual dielectric response of 4-methyl-1,3-dioxolane derivatives. Phys Chem Chem Phys 2018; 20:28211-28222. [DOI: 10.1039/c8cp05913f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In this paper, we applied broadband dielectric spectroscopy (BDS) to investigate the molecular dynamics of three 4-methyl-1,3-dioxolane derivatives (MD) whose chemical structures differ in the length of non-polar alkyl side chains.
Collapse
Affiliation(s)
- Marzena Rams-Baron
- Institute of Physics
- University of Silesia
- 41-500 Chorzow
- Poland
- Silesian Center for Education and Interdisciplinary Research
| | - Agnieszka Jędrzejowska
- Institute of Physics
- University of Silesia
- 41-500 Chorzow
- Poland
- Silesian Center for Education and Interdisciplinary Research
| | - Mateusz Dulski
- Silesian Center for Education and Interdisciplinary Research
- 41-500 Chorzow
- Poland
- Institute of Material Science
- 41-500 Chorzow
| | - Kamila Wolnica
- Institute of Physics
- University of Silesia
- 41-500 Chorzow
- Poland
- Silesian Center for Education and Interdisciplinary Research
| | - Korbinian Geirhos
- Experimental Physics V
- Center for Electronic Correlations and Magnetism
- University of Augsburg
- 86159 Augsburg
- Germany
| | - Peter Lunkenheimer
- Experimental Physics V
- Center for Electronic Correlations and Magnetism
- University of Augsburg
- 86159 Augsburg
- Germany
| | - Marian Paluch
- Institute of Physics
- University of Silesia
- 41-500 Chorzow
- Poland
- Silesian Center for Education and Interdisciplinary Research
| |
Collapse
|
16
|
Vural D, Smith JC, Petridis L. Dynamics of the lignin glass transition. Phys Chem Chem Phys 2018; 20:20504-20512. [DOI: 10.1039/c8cp03144d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Despite lignin being a heterogenous polyphenolic, its glass transition obeys well-established polymer theory concepts.
Collapse
Affiliation(s)
- Derya Vural
- UT/ORNL Center for Molecular Biophysics
- Oak Ridge National Laboratory
- Tennessee 37831
- USA
- Department of Physics, Giresun University
| | - Jeremy C. Smith
- UT/ORNL Center for Molecular Biophysics
- Oak Ridge National Laboratory
- Tennessee 37831
- USA
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee
| | - Loukas Petridis
- UT/ORNL Center for Molecular Biophysics
- Oak Ridge National Laboratory
- Tennessee 37831
- USA
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee
| |
Collapse
|
17
|
Korolovych VF, Erwin AJ, Stryutsky A, Mikan EK, Shevchenko VV, Tsukruk VV. Self-Assembly of Hyperbranched Protic Poly(ionic liquid)s with Variable Peripheral Amphiphilicity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170121] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Volodymyr F. Korolovych
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Andrew J. Erwin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Alexandr Stryutsky
- Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine, Kharkivske Shosse 48, Kyiv 02160, Ukraine
| | - Emily K. Mikan
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Valery V. Shevchenko
- Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine, Kharkivske Shosse 48, Kyiv 02160, Ukraine
| | - Vladimir V. Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| |
Collapse
|
18
|
Monkenbusch M, Krutyeva M, Pyckhout-Hintzen W, Antonius W, Hövelmann CH, Allgaier J, Brás A, Farago B, Wischnewski A, Richter D. Molecular View on Supramolecular Chain and Association Dynamics. PHYSICAL REVIEW LETTERS 2016; 117:147802. [PMID: 27740839 DOI: 10.1103/physrevlett.117.147802] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Indexed: 06/06/2023]
Abstract
The chain and association dynamics of supramolecular polymer ensembles decisively determines their properties. Using neutron spin echo (NSE) spectroscopy we present molecular insight into the space and time evolution of this dynamics. Studying a well characterized ensemble of linearly associating telechelic poly(ethylene glycol) melts carrying triple H-bonding end groups, we show that H-bond breaking significantly impacts the mode spectrum of the associates. The breaking affects the mode contributions and not the relaxation times as was assumed previously. NSE spectra directly reveal the so far intangible H-bond lifetimes in the supramolecular melt and demonstrate that for both the microscopic and the macroscopic dynamics of the supramolecular ensemble the instantaneous average of the M_{w} distribution governs the system response at least as long as the Rouse picture applies.
Collapse
Affiliation(s)
- M Monkenbusch
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - M Krutyeva
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - W Pyckhout-Hintzen
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - W Antonius
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - C H Hövelmann
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - J Allgaier
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - A Brás
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - B Farago
- Institut Laue-Langevin (ILL), 71 avenue des Martyrs, 38000 Grenoble, France
| | - A Wischnewski
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - D Richter
- Jülich Centre for Neutron Science (JCNS) Institute for Complex Systems (ICS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| |
Collapse
|
19
|
Luo MC, An R, Gao XX, Zeng J, Huang GS. Role of epoxidation on segmental motion of polyisoprene as studied by broadband dielectric spectroscopy. J Appl Polym Sci 2016. [DOI: 10.1002/app.43879] [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)
- Ming-Chao Luo
- State Key Laboratory of Polymer Material Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 People's Republic of China
| | - Ran An
- State Key Laboratory of Polymer Material Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 People's Republic of China
| | - Xiao-Xiao Gao
- State Key Laboratory of Polymer Material Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 People's Republic of China
| | - Jian Zeng
- State Key Laboratory of Polymer Material Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 People's Republic of China
| | - Guang-Su Huang
- State Key Laboratory of Polymer Material Engineering; College of Polymer Science and Engineering, Sichuan University; Chengdu 610065 People's Republic of China
| |
Collapse
|
20
|
Staropoli M, Raba A, Hövelmann CH, Krutyeva M, Allgaier J, Appavou MS, Keiderling U, Stadler FJ, Pyckhout-Hintzen W, Wischnewski A, Richter D. Hydrogen Bonding in a Reversible Comb Polymer Architecture: A Microscopic and Macroscopic Investigation. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00978] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Mariapaola Staropoli
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Andreas Raba
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Claas H. Hövelmann
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Margarita Krutyeva
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Jürgen Allgaier
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | | | - Uwe Keiderling
- Helmholtz-Zentrum Berlin für Materialien and Energie, 14109 Berlin, Germany
| | - Florian J. Stadler
- Nanshan
District Key Lab for Biopolymers and Safety Evaluation, College of
Materials Science and Engineering and Department of Optoelectronic
Engineering, Shenzhen University, Shenzhen, Guangdong China
| | - Wim Pyckhout-Hintzen
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Andreas Wischnewski
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - Dieter Richter
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| |
Collapse
|
21
|
Shabbir A, Javakhishvili I, Cerveny S, Hvilsted S, Skov AL, Hassager O, Alvarez NJ. Linear Viscoelastic and Dielectric Relaxation Response of Unentangled UPy-Based Supramolecular Networks. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00122] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Aamir Shabbir
- Department
of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Irakli Javakhishvili
- Department
of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Silvina Cerveny
- Centro de Física de Materiales (CFM CSIC/EHU) - Material Physics Centre (MPC), Paseo Manuel de
Lardizabal 5, San Sebastian 20018, Spain
| | - Søren Hvilsted
- Department
of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Anne L. Skov
- Department
of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Ole Hassager
- Department
of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Nicolas J. Alvarez
- Department
of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
22
|
Xing K, Chatterjee S, Saito T, Gainaru C, Sokolov AP. Impact of Hydrogen Bonding on Dynamics of Hydroxyl-Terminated Polydimethylsiloxane. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00262] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Kunyue Xing
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Sabornie Chatterjee
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Tomonori Saito
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Catalin Gainaru
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Fakultät
für Physik, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - Alexei P. Sokolov
- Department
of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| |
Collapse
|
23
|
Li H, Wei W, Xiong H. An asymmetric A-B-A' metallo-supramolecular triblock copolymer linked by Ni(2+)-bis-terpyridine complexes at one junction. SOFT MATTER 2016; 12:1411-1418. [PMID: 26660271 DOI: 10.1039/c5sm02639c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A metallo-supramolecular triblock copolymer polystyrene-b-polyisoprene-[Ni(2+)]-polystyrene (SI-[Ni(2+)]-S') has been efficiently prepared using a one-pot, two-step procedure, where the blocks are held by bis-terpyridine complexes at the junction of SI-S'. This specific metallo-supramolecular chemistry is demonstrated to be a robust approach to potentially broaden the diversity of block copolymers. The location of the metal-ligand complexes has a profound influence on the phase separation of the triblock copolymer in the bulk, which results in a distinctive phase segregation between the end blocks and leads to an unexpected asymmetry of the triblock copolymer. The metal-ligand complexes are found to be preferentially located on the adjacent spherical domain and form a core-shell structure. The resulting multiphase material exhibits distinct elastomeric properties with significant toughness and creep recovery behavior. This type of triblock copolymer is anticipated to be a novel class of hybrid thermo-plastic elastomeric material with wide tunability and functionality.
Collapse
Affiliation(s)
- Haixia Li
- Department of Polymer Science, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
| | | | | |
Collapse
|
24
|
Krutyeva M, Brás AR, Antonius W, Hövelmann CH, Poulos AS, Allgaier J, Radulescu A, Lindner P, Pyckhout-Hintzen W, Wischnewski A, Richter D. Association Behavior, Diffusion, and Viscosity of End-Functionalized Supramolecular Poly(ethylene glycol) in the Melt State. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b02060] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- M. Krutyeva
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - A. R. Brás
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - W. Antonius
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - C. H. Hövelmann
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - A. S. Poulos
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - J. Allgaier
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - A. Radulescu
- Jülich Centre for Neutron Science (JCNS) at MLZ, 85747 Garching, Germany
| | - P. Lindner
- Institut Laue-Langevin (ILL), 71 avenue des Martyrs, 38000 Grenoble, France
| | - W. Pyckhout-Hintzen
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - A. Wischnewski
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| | - D. Richter
- JCNS-1
and ICS-1, Forschungszentrum Jülich GmbH, Leo-Brandt-Straße, 52425 Jülich, Germany
| |
Collapse
|
25
|
Adrjanowicz K, Jakobsen B, Hecksher T, Kaminski K, Dulski M, Paluch M, Niss K. Communication: Slow supramolecular mode in amine and thiol derivatives of 2-ethyl-1-hexanol revealed by combined dielectric and shear-mechanical studies. J Chem Phys 2015; 143:181102. [DOI: 10.1063/1.4935510] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- K. Adrjanowicz
- Department of Sciences, DNRF Centre “Glass and Time,” IMFUFA, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
- NanoBioMedical Centre, Adam Mickiewicz University, ul. Umultowska 85, 61-614 Poznan, Poland
| | - B. Jakobsen
- Department of Sciences, DNRF Centre “Glass and Time,” IMFUFA, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - T. Hecksher
- Department of Sciences, DNRF Centre “Glass and Time,” IMFUFA, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - K. Kaminski
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - M. Dulski
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - M. Paluch
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - K. Niss
- Department of Sciences, DNRF Centre “Glass and Time,” IMFUFA, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| |
Collapse
|
26
|
Cosby T, Holt A, Griffin PJ, Wang Y, Sangoro J. Proton Transport in Imidazoles: Unraveling the Role of Supramolecular Structure. J Phys Chem Lett 2015; 6:3961-3965. [PMID: 26722899 DOI: 10.1021/acs.jpclett.5b01887] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The impact of supramolecular hydrogen bonded networks on dynamics and charge transport in 2-ethyl-4-methylimidazole (2E4MIm), a model proton-conducting system, is investigated by broadband dielectric spectroscopy, depolarized dynamic light scattering, viscometry, and calorimetry. It is observed that the slow, Debye-like relaxation reflecting the supramolecular structure in neat 2E4MIm is eliminated upon the addition of minute amounts of levulinic acid. This is attributed to the dissociation of imidazole molecules and the breaking down of hydrogen-bonded chains, which leads to a 10-fold enhancement of ionic conductivity.
Collapse
Affiliation(s)
| | | | - Philip J Griffin
- Department of Materials Science and Engineering, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Yangyang Wang
- Center for Nanophase Materials Science, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
| | | |
Collapse
|
27
|
Ahmadi M, Hawke LGD, Goldansaz H, van Ruymbeke E. Dynamics of Entangled Linear Supramolecular Chains with Sticky Side Groups: Influence of Hindered Fluctuations. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00733] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Mostafa Ahmadi
- Department
of Polymer Engineering and Color Technology, Amirkabir University of Technology, No. 424, Hafez Avenue, Tehran 15875-4413, Iran
| | - Laurence G. D. Hawke
- Bio
and Soft Matter Division (BSMA), Institut de la Matière Condensée
et des Nanosciences (IMCN), Université catholique de Louvain, Place Croix du Sud 1, 1348 Louvain-la-Neuve, Belgium
| | - Hadi Goldansaz
- Bio
and Soft Matter Division (BSMA), Institut de la Matière Condensée
et des Nanosciences (IMCN), Université catholique de Louvain, Place Croix du Sud 1, 1348 Louvain-la-Neuve, Belgium
| | - Evelyne van Ruymbeke
- Bio
and Soft Matter Division (BSMA), Institut de la Matière Condensée
et des Nanosciences (IMCN), Université catholique de Louvain, Place Croix du Sud 1, 1348 Louvain-la-Neuve, Belgium
| |
Collapse
|
28
|
Arrese-Igor S, Alegría A, Colmenero J. Dielectric relaxation of 2-ethyl-1-hexanol around the glass transition by thermally stimulated depolarization currents. J Chem Phys 2015; 142:214504. [PMID: 26049505 DOI: 10.1063/1.4921655] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We explore new routes for characterizing the Debye-like and α relaxation in 2-ethyl-1-hexanol (2E1H) monoalcohol by using low frequency dielectric techniques including thermally stimulated depolarization current (TSDC) techniques and isothermal depolarization current methods. In this way, we have improved the resolution of the overlapped processes making it possible the analysis of the data in terms of a mode composition as expected for a chain-like response. Furthermore the explored ultralow frequencies enabled to study dynamics at relatively low temperatures close to the glass transition (Tg). Results show, on the one hand, that Debye-like and α relaxation timescales dramatically approach to each other upon decreasing temperature to Tg. On the other hand, the analysis of partial polarization TSDC data confirms the single exponential character of the Debye-like relaxation in 2E1H and rules out the presence of Rouse type modes in the scenario of a chain-like response. Finally, on crossing the glass transition, the Debye-like relaxation shows non-equilibrium effects which are further emphasized by aging treatment and would presumably emerge as a result of the arrest of the structural relaxation below Tg.
Collapse
Affiliation(s)
- S Arrese-Igor
- Centro de de Física de Materiales (MPC), Centro Mixto CSIC-UPV/EHU, Paseo Manuel Lardizabal 5, 20018 San Sebastián, Spain
| | - A Alegría
- Centro de de Física de Materiales (MPC), Centro Mixto CSIC-UPV/EHU, Paseo Manuel Lardizabal 5, 20018 San Sebastián, Spain
| | - J Colmenero
- Centro de de Física de Materiales (MPC), Centro Mixto CSIC-UPV/EHU, Paseo Manuel Lardizabal 5, 20018 San Sebastián, Spain
| |
Collapse
|
29
|
Świergiel J, Bouteiller L, Jadżyn J. Compliance of the Stokes-Einstein model and breakdown of the Stokes-Einstein-Debye model for a urea-based supramolecular polymer of high viscosity. SOFT MATTER 2014; 10:8457-8463. [PMID: 25230766 DOI: 10.1039/c4sm01556h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Impedance spectroscopy was used for the study of the static and dynamic behavior of the electrical conductivity of a hydrogen-bonded supramolecular polymer of high viscosity. The experimental data are discussed in the frame of the Stokes-Einstein and Stokes-Einstein-Debye models. It was found that the translational movement of the ions is due to normal Brownian diffusion, which was revealed by a fulfillment of Ohm's law by the electric current and a strictly exponential decay of the current after removing the electric stimulus. The dependence of the dc conductivity on the viscosity of the medium fulfills the Stokes-Einstein model quite well. An extension of the model, by including in it the conductivity relaxation time, is proposed in this paper. A breakdown of the Stokes-Einstein-Debye model is revealed by the relations of the dipolar relaxation time to the viscosity and to the dc ionic conductivity. The importance of the C=O···H-N hydrogen bonds in that breakdown is discussed.
Collapse
Affiliation(s)
- Jolanta Świergiel
- Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, PL-60-179 Poznań, Poland.
| | | | | |
Collapse
|
30
|
Bierwirth SP, Büning T, Gainaru C, Sternemann C, Tolan M, Böhmer R. Supramolecular x-ray signature of susceptibility amplification in hydrogen-bonded liquids. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 90:052807. [PMID: 25493834 DOI: 10.1103/physreve.90.052807] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Indexed: 06/04/2023]
Abstract
Mixing two nonconducting hydrogen-bonded liquids, each exhibiting a low dielectric relaxation strength, can result in a highly electrically absorbing fluid. This susceptibility amplification effect is demonstrated for mixtures of monohydroxy alcohols. Whereas in the pure liquids a tendency to form ringlike low-dipole moment clusters prevails, in the mixtures such supramolecular structures are disfavored leading to an up to tenfold enhancement of the dielectric loss. The compositional evolution of density and mean cluster-cluster separation is traced using x-ray scattering and indicates deviations from ideal mixing with decreased C-C but simultaneously increased O-O correlation lengths. Thus, the variation in the supramolecular absorption strength could be tracked using a static scattering technique. These observations are in harmony with volume exclusion and ring open effects that predict an optimized susceptibility amplification for mixtures in which the two components occupy equal volume fractions as experimentally observed.
Collapse
Affiliation(s)
- S P Bierwirth
- Fakultät Physik, Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - T Büning
- Fakultät Physik/DELTA, Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - C Gainaru
- Fakultät Physik, Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - C Sternemann
- Fakultät Physik/DELTA, Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - M Tolan
- Fakultät Physik/DELTA, Technische Universität Dortmund, D-44221 Dortmund, Germany
| | - R Böhmer
- Fakultät Physik, Technische Universität Dortmund, D-44221 Dortmund, Germany
| |
Collapse
|
31
|
|
32
|
Hecksher T, Jakobsen B. Communication: Supramolecular structures in monohydroxy alcohols: Insights from shear-mechanical studies of a systematic series of octanol structural isomers. J Chem Phys 2014; 141:101104. [DOI: 10.1063/1.4895095] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Tina Hecksher
- DNRF Centre “Glass and Time”, IMFUFA, Department of Sciences, Roskilde University, Postbox 260, DK-4000 Roskilde, Denmark
| | - Bo Jakobsen
- DNRF Centre “Glass and Time”, IMFUFA, Department of Sciences, Roskilde University, Postbox 260, DK-4000 Roskilde, Denmark
| |
Collapse
|
33
|
Cao X, Zhang L, Wang L, Lin J. Insights into ordered microstructures and ordering mechanisms of ABC star terpolymers by integrating dynamic self-consistent field theory and variable cell shape methods. SOFT MATTER 2014; 10:5916-5927. [PMID: 24985482 DOI: 10.1039/c4sm00658e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A theoretical approach coupling dynamic self-consistent field (SCF) theory for inhomogeneous polymeric fluids and variable cell shape (VCS) method for automatically adjusting cell shape and size is developed to investigate ordered microstructures and the ordering mechanisms of block copolymer melts. Using this simulation method, we first re-examined the microphase separation of the simplest AB diblock copolymers, and tested the validity and efficiency of the novel method by comparing the results with those obtained from the dynamic SCF theory. An appropriate relaxation parameter of the VCS method effectively accelerates the system towards a stable morphology without distortions or defects. The dynamic SCF/VCS method is then applied to identify the richness morphologies of ABC star terpolymers and explore the ordering mechanisms of star terpolymer melts quenched from homogenous states. A diverse range of ordered microstructures, including two-dimensional tiling patterns, hierarchical structures and ordinary microstructures, are predicted. Three types of ordering mechanisms, namely, one-step, quick-slow and step-wise procedures, are discovered in the disorder-to-order transition of ABC star terpolymers. The procedures of microphase separation in the ABC star terpolymer melts are remarkably affected by the composition of star terpolymers and the strength of interaction parameters.
Collapse
Affiliation(s)
- Xuguang Cao
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | | | | | | |
Collapse
|
34
|
|
35
|
Świergiel J, Bouteiller L, Jadżyn J. Concentration Evolution of the Dielectric Response of Hydrogen-Bonded Supramolecular Polymers Formed by Dialkylurea in Non-Polar Medium. Macromolecules 2014. [DOI: 10.1021/ma500069u] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jolanta Świergiel
- Institute of Molecular Physics, Polish Academy of
Sciences, M. Smoluchowskiego
17, PL-60-179 Poznań, Poland
| | - Laurent Bouteiller
- UMR
7610, Chimie des Polymères, CNRS and UPMC Université Paris 06, F-75005 Paris, France
| | - Jan Jadżyn
- Institute of Molecular Physics, Polish Academy of
Sciences, M. Smoluchowskiego
17, PL-60-179 Poznań, Poland
| |
Collapse
|
36
|
Wang Y, Griffin PJ, Holt A, Fan F, Sokolov AP. Observation of the slow, Debye-like relaxation in hydrogen-bonded liquids by dynamic light scattering. J Chem Phys 2014; 140:104510. [DOI: 10.1063/1.4867913] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
37
|
Gainaru C, Figuli R, Hecksher T, Jakobsen B, Dyre JC, Wilhelm M, Böhmer R. Shear-modulus investigations of monohydroxy alcohols: evidence for a short-chain-polymer rheological response. PHYSICAL REVIEW LETTERS 2014; 112:098301. [PMID: 24655283 DOI: 10.1103/physrevlett.112.098301] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Indexed: 06/03/2023]
Abstract
Liquids composed of small-molecule monohydroxy alcohols are demonstrated to display rheological behavior typical for oligomeric chains. This observation was made possible by rheological experiments in which more than seven decades in frequency and more than five decades on the mechanical modulus scale are covered. The singly hydrogen-bonded monohydroxy alcohols were chosen because they display significant, but surprisingly poorly understood effects of intermolecular association. Based on the present shear study, one can apply theoretical concepts of polymer science to understand the anomalous physical behavior of a wide range of hydrogen-bonded liquids.
Collapse
Affiliation(s)
- C Gainaru
- Fakultät für Physik, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - R Figuli
- Karlsruher Institut für Technologie, 76128 Karlsruhe, Germany
| | - T Hecksher
- DNRF Centre "Glass and Time", IMFUFA, Department of Sciences, Roskilde University, Postbox 260, DK-4000 Roskilde, Denmark
| | - B Jakobsen
- DNRF Centre "Glass and Time", IMFUFA, Department of Sciences, Roskilde University, Postbox 260, DK-4000 Roskilde, Denmark
| | - J C Dyre
- DNRF Centre "Glass and Time", IMFUFA, Department of Sciences, Roskilde University, Postbox 260, DK-4000 Roskilde, Denmark
| | - M Wilhelm
- Karlsruher Institut für Technologie, 76128 Karlsruhe, Germany
| | - R Böhmer
- Fakultät für Physik, Technische Universität Dortmund, 44221 Dortmund, Germany
| |
Collapse
|
38
|
Zhang J, Li Y, Wang L, Fujiki M, Li X, Zhang Z, Zhang W, Zhou N, Zhu X. Supramolecular self-assembly and photovoltaic property of soluble fluorogallium phthalocyanine. RSC Adv 2014. [DOI: 10.1039/c4ra03941f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fluorogallium tetra-tert-butylphthalocyanine (ttbPcGaF) can self-organize into well-ordered cofacial structures to obtain one-dimensional (1D) supramolecular polymers in the solid state using a solution-coating technique. The ttbPcGaF-based BHJ OSC provided a profoundly improved power conversion efficiency (PCE) of 0.41%.
Collapse
Affiliation(s)
- Jian Zhang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Yaowen Li
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Laibing Wang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Michiya Fujiki
- Graduate School of Materials Science
- Nara Institute of Science and Technology
- Ikoma, Japan
| | - Xiaopeng Li
- Department of Chemistry and Biochemistry
- Texas State University
- San Marcos, USA
| | - Zhengbiao Zhang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Wei Zhang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Nianchen Zhou
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Xiulin Zhu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| |
Collapse
|
39
|
Bauer S, Wittkamp H, Schildmann S, Frey M, Hiller W, Hecksher T, Olsen NB, Gainaru C, Böhmer R. Broadband dynamics in neat 4-methyl-3-heptanol and in mixtures with 2-ethyl-1-hexanol. J Chem Phys 2013; 139:134503. [DOI: 10.1063/1.4821229] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
40
|
Santhosh Babu S, Nakanishi T. Nonvolatile functional molecular liquids. Chem Commun (Camb) 2013; 49:9373-82. [DOI: 10.1039/c3cc45192e] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|