1
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Singh LP, Sharma G. Dielectric spectroscopy investigation of relaxation processes in the low-frequency regime and validity of the Stokes–Einstein–Nernst/Stokes–Einstein–Debye relation in poly(propylene glycol). Macromol Res 2023. [DOI: 10.1007/s13233-022-00104-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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2
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Singh LP. Primary and secondary relaxation processes in poly(propylene glycol) monobutyl ether: a broadband dielectric spectroscopy investigation. Polym J 2022. [DOI: 10.1038/s41428-022-00728-7] [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]
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3
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Nieto Simavilla D, Abate AA, Liu J, Geerts YH, Losada-Peréz P, Napolitano S. 1D-Confinement Inhibits the Anomaly in Secondary Relaxation of a Fluorinated Polymer. ACS Macro Lett 2021; 10:649-653. [PMID: 35570757 DOI: 10.1021/acsmacrolett.1c00220] [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 present an experimental study of the dynamics of a well-pronounced secondary relaxation observed in bulk and ultrathin films of the fluorinated copolymer poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP). In proximity to the glass transition, an anomalous phenomenon is observed: the β-relaxation slows down upon heating. Measurements as a function of the film thickness show that this exceptional behavior gradually vanishes upon confinement at the nanoscale level. Regardless of sample size, the relaxation dynamics could be described in terms of the Minimal Model via an asymmetric double well potential. Supported by a structural investigation of surfaces and interfaces, our results reveal that the presence of adsorbing walls induces an increase in glass transition temperature, which counterbalances the asymmetry in the double well potential responsible for molecular motion.
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Affiliation(s)
- David Nieto Simavilla
- Laboratory of Polymer and Soft Matter Dynamics, Experimental Soft Matter and Thermal Physics (EST), Université libre de Bruxelles (ULB), Bruxelles 1050, Belgium
| | - Anabella A Abate
- Laboratory of Polymer and Soft Matter Dynamics, Experimental Soft Matter and Thermal Physics (EST), Université libre de Bruxelles (ULB), Bruxelles 1050, Belgium
| | - Jie Liu
- Laboratoire de Chimie des Polyméres, Université Libre de Bruxelles (ULB), 1050 Bruxelles, Belgium
| | - Yves H Geerts
- Laboratoire de Chimie des Polyméres, Université Libre de Bruxelles (ULB), 1050 Bruxelles, Belgium.,International Solvay Institutes of Physics and Chemistry, ULB - Campus Plaine - CP 231, Boulevard du Triomphe, 1050 Brussels, Belgium
| | - Patricia Losada-Peréz
- Experimental Soft Matter and Thermal Physics (EST), Université Libre de Bruxelles (ULB), Bruxelles 1050, Belgium
| | - Simone Napolitano
- Laboratory of Polymer and Soft Matter Dynamics, Experimental Soft Matter and Thermal Physics (EST), Université libre de Bruxelles (ULB), Bruxelles 1050, Belgium
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4
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Talik A, Tarnacka M, Dzienia A, Kaminska E, Kaminski K, Paluch M. High-Pressure Studies on the Chain and Segmental Dynamics of a Series of Poly(propylene glycol) Derivatives. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00692] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Andrzej Dzienia
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
| | - Ewa Kaminska
- Department of Pharmacognosy and Phytochemistry, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia in Katowice, Jagiellonska 4, 41-200 Sosnowiec, Poland
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5
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Xing K, Tress M, Cao PF, Fan F, Cheng S, Saito T, Sokolov AP. The Role of Chain-End Association Lifetime in Segmental and Chain Dynamics of Telechelic Polymers. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01210] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kunyue Xing
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
| | - Martin Tress
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
| | - Peng-Fei Cao
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Fei Fan
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
| | - Shiwang Cheng
- Department of Chemical Engineering and Material Science, Michigan State University, East Lansing, Michigan 48824, United States
| | - Tomonori Saito
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Alexei P. Sokolov
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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6
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Wang M, Li X, Guo Y, Wu T, Liu YD, Ngai KL, Wang LM. A new secondary relaxation in the rigid and planar 1-methylindole: Evidence from binary mixture studies. J Chem Phys 2016; 145:214501. [DOI: 10.1063/1.4968564] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Meng Wang
- State Key Laboratory of Metastable Materials Science and Technology and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Xiangqian Li
- State Key Laboratory of Metastable Materials Science and Technology and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Yuxing Guo
- State Key Laboratory of Metastable Materials Science and Technology and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Tao Wu
- State Key Laboratory of Metastable Materials Science and Technology and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Ying Dan Liu
- State Key Laboratory of Metastable Materials Science and Technology and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - K. L. Ngai
- State Key Laboratory of Metastable Materials Science and Technology and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
- CNR-IPCF, Largo B. Pontecorvo 3, Pisa I-56127, Italy
| | - Li-Min Wang
- State Key Laboratory of Metastable Materials Science and Technology and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
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7
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Ngai KL, Pawlus S, Grzybowska K, Kaminski K, Capaccioli S, Paluch M. Does the Johari–Goldstein β-Relaxation Exist in Polypropylene Glycols? Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00832] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. L. Ngai
- CNR-IPCF, Largo Bruno Pontecorvo 3, I-56127, Pisa, Italy
- Dipartimento di
Fisica, Università di Pisa, Largo Bruno Pontecorvo 3, I-56127, Pisa, Italy
| | - S. Pawlus
- Institute of Physics, University of Silesia, ul. Uniwersytecka
4, 40-007 Katowice, Poland
| | - K. Grzybowska
- Institute of Physics, University of Silesia, ul. Uniwersytecka
4, 40-007 Katowice, Poland
| | - K. Kaminski
- Institute of Physics, University of Silesia, ul. Uniwersytecka
4, 40-007 Katowice, Poland
| | - S. Capaccioli
- CNR-IPCF, Largo Bruno Pontecorvo 3, I-56127, Pisa, Italy
- Dipartimento di
Fisica, Università di Pisa, Largo Bruno Pontecorvo 3, I-56127, Pisa, Italy
| | - M. Paluch
- Institute of Physics, University of Silesia, ul. Uniwersytecka
4, 40-007 Katowice, Poland
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8
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Wojnarowska Z, Knapik J, Díaz M, Ortiz A, Ortiz I, Paluch M. Conductivity Mechanism in Polymerized Imidazolium-Based Protic Ionic Liquid [HSO3–BVIm][OTf]: Dielectric Relaxation Studies. Macromolecules 2014. [DOI: 10.1021/ma5003479] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Z. Wojnarowska
- Institute
of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- SMCEBI 75 Pułku Piechoty
1A, 41-500 Chorzow, Poland
| | - J. Knapik
- Institute
of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- SMCEBI 75 Pułku Piechoty
1A, 41-500 Chorzow, Poland
| | - M. Díaz
- Department
of Chemical and Biomolecular Engineering, University of Cantabria, Santander, Spain
| | - A. Ortiz
- Department
of Chemical and Biomolecular Engineering, University of Cantabria, Santander, Spain
| | - I. Ortiz
- Department
of Chemical and Biomolecular Engineering, University of Cantabria, Santander, Spain
| | - M. Paluch
- Institute
of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
- SMCEBI 75 Pułku Piechoty
1A, 41-500 Chorzow, Poland
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9
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Fan F, Wang Y, Sokolov AP. Ionic Transport, Microphase Separation, and Polymer Relaxation in Poly(propylene glycol) and Lithium Perchlorate Mixtures. Macromolecules 2013. [DOI: 10.1021/ma401238k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fei Fan
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee, 37996, United States
| | - Yangyang Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, United States
| | - 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
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10
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Wojnarowska Z, Grzybowska K, Hawelek L, Dulski M, Wrzalik R, Gruszka I, Paluch M, Pienkowska K, Sawicki W, Bujak P, Paluch KJ, Tajber L, Markowski J. Molecular Dynamics, Physical Stability and Solubility Advantage from Amorphous Indapamide Drug. Mol Pharm 2013; 10:3612-27. [DOI: 10.1021/mp400116q] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Z. Wojnarowska
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - K. Grzybowska
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - L. Hawelek
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Institute of Non-Ferrous Metals, ul. Sowinskiego 5, 44-100 Gliwice, Poland
| | - M. Dulski
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - R. Wrzalik
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - I. Gruszka
- 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
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11
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Kaminski K, Kipnusu WK, Adrjanowicz K, Mapesa EU, Iacob C, Jasiurkowska M, Wlodarczyk P, Grzybowska K, Paluch M, Kremer F. Comparative Study on the Molecular Dynamics of a Series of Polypropylene Glycols. Macromolecules 2013. [DOI: 10.1021/ma302611x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K. Kaminski
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007
Katowice, Poland
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - W. K. Kipnusu
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - K. Adrjanowicz
- NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Poznan,
Poland
| | - E. U. Mapesa
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - C. Iacob
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - M. Jasiurkowska
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
| | - P. Wlodarczyk
- Institute of Non-Ferrous Metals, ul. Sowinskiego 5, 44-100 Gliwice, Poland
| | - K. Grzybowska
- 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
| | - F. Kremer
- Institute
of Experimental Physics, University of Leipzig, Linnestrasse 5, 04103 Leipzig,
Germany
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12
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Wojnarowska Z, Grzybowska K, Hawelek L, Swiety-Pospiech A, Masiewicz E, Paluch M, Sawicki W, Chmielewska A, Bujak P, Markowski J. Molecular dynamics studies on the water mixtures of pharmaceutically important ionic liquid lidocaine HCl. Mol Pharm 2012; 9:1250-61. [PMID: 22424553 DOI: 10.1021/mp2005609] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this paper the molecular dynamics of a common local-anesthetic drug, lidocaine hydrochloride (LD-HCl), and its water mixtures were investigated. By means of broadband dielectric spectroscopy and calorimetric measurements it was shown that even a small addition of water causes a significant effect on the relaxation dynamics of analyzed protic ionic liquid. Apart from the two well-resolved relaxations (σ- and γ-processes) and the β-mode, identified as the JG-process, observed for anhydrous LD-HCl, a new relaxation peak (υ) is visible in the dielectric spectra of aqueous mixtures of this drug. Additionally, the significant effect of the water on the glass transition temperature of LD-HCl was found. The sample characterized with mole fraction of water X(w) = 0.44 reveals the glass transition temperature T(g), 42 K lower than that of anhydrous material (307 K). Finally, it was shown that by amorphization of the hydrochloride salt of lidocaine it is possible to obtain its room temperature ionic liquid form.
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Affiliation(s)
- Z Wojnarowska
- Institute of Physics, University of Silesia, ul Uniwersytecka 4, 40-007 Katowice, Poland.
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13
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Singh LP, Cerveny S, Alegría A, Colmenero J. Dynamics of Water in Supercooled Aqueous Solutions of Poly(propylene glycol) As Studied by Broadband Dielectric Spectroscopy and Low-Temperature FTIR-ATR Spectroscopy. J Phys Chem B 2011; 115:13817-27. [DOI: 10.1021/jp2073705] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Silvina Cerveny
- Centro de Fisica de Materiales (CSIC, UPV/EHU)-Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastián, Spain
| | - Angel Alegría
- Departamento de Física de Materiales, UPV/EHU, Facultad de Química, 20018, San Sebastián, Spain
- Donostia International Physics Center, San Sebastián, Spain
| | - Juan Colmenero
- Centro de Fisica de Materiales (CSIC, UPV/EHU)-Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastián, Spain
- Departamento de Física de Materiales, UPV/EHU, Facultad de Química, 20018, San Sebastián, Spain
- Donostia International Physics Center, San Sebastián, Spain
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14
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Pawlus S, Paluch M, Nagaraj M, Vij JK. Effect of high hydrostatic pressure on the dielectric relaxation in a non-crystallizable monohydroxy alcohol in its supercooled liquid and glassy states. J Chem Phys 2011; 135:084507. [DOI: 10.1063/1.3626027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Sjöström J, Bergman R, Wadell C, Moberg T, Swenson J, Mattsson J. Effects of water contamination on the supercooled dynamics of a hydrogen-bonded model glass former. J Phys Chem B 2011; 115:1842-7. [PMID: 21299230 DOI: 10.1021/jp108070c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Broad-band dielectric spectroscopy is a commonly used tool in the study of glass-forming liquids. The high sensitivity of the technique together with the wide range of probed time scales makes it a powerful method for investigating the relaxation spectra of liquids. One particularly important class of glass-forming liquids that is often studied using this technique consists of liquids dominated by hydrogen (H) bond interactions. When investigating such liquids, particular caution has to be taken during sample preparation due to their often highly hygroscopic nature. Water can easily be absorbed from the atmosphere, and dielectric spectroscopy is a very sensitive probe of such contamination due to the large dipole moment of water. Our knowledge concerning the effects of small quantities of water on the dielectric properties of these commonly investigated liquids is limited. We here demonstrate the effects due to the presence of small amounts of water on the dielectric response of a typical H-bonded model glass former, tripropylene glycol. We show how the relaxation processes present in the pure liquid are affected by addition of water, and we find that a characteristic water induced relaxation response is observed for water contents as low as 0.15 wt%. We stress the importance of careful purification of hygroscopic liquids before experiments and quantify what the effects are if such procedures are not undertaken.
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Affiliation(s)
- Johan Sjöström
- Department of Applied Physics, Chalmers University of Technology, SE-41296 Göteborg, Sweden.
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16
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Nakanishi M, Sasaki Y, Nozaki R. New sample cell configuration for wide-frequency dielectric spectroscopy: DC to radio frequencies. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2010; 81:123902. [PMID: 21198035 DOI: 10.1063/1.3518940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A new configuration for the sample cell to be used in broadband dielectric spectroscopy is presented. A coaxial structure with a parallel plate capacitor (outward parallel plate cell: OPPC) has made it possible to extend the frequency range significantly in comparison with the frequency range of the conventional configuration. In the proposed configuration, stray inductance is significantly decreased; consequently, the upper bound of the frequency range is improved by two orders of magnitude from the upper limit of conventional parallel plate capacitor (1 MHz). Furthermore, the value of capacitance is kept high by using a parallel plate configuration. Therefore, the precision of the capacitance measurement in the lower frequency range remains sufficiently high. Finally, OPPC can cover a wide frequency range (100 Hz-1 GHz) with an appropriate admittance measuring apparatus such as an impedance or network analyzer. The OPPC and the conventional dielectric cell are compared by examining the frequency dependence of the complex permittivity for several polar liquids and polymeric films.
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Affiliation(s)
- Masahiro Nakanishi
- Department of Physics, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan.
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17
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Martínez-García JC, Tamarit JL, Pardo LC, Barrio M, Rzoska SJ, Droz-Rzoska A. Disentangling the Secondary Relaxations in the Orientationally Disordered Mixed Crystals: Cycloheptanol + Cyclooctanol Two-Component System. J Phys Chem B 2010; 114:6099-106. [DOI: 10.1021/jp100270z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julio C. Martínez-García
- Group de Caracterització de Materials, Department de Física I Enginyeria Nuclear, ETSEIB, Diagonal 647, Universitat Politècnica de Catalunya, 08028 Barcelona, Catalonia, Spain, and Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - Josep Ll. Tamarit
- Group de Caracterització de Materials, Department de Física I Enginyeria Nuclear, ETSEIB, Diagonal 647, Universitat Politècnica de Catalunya, 08028 Barcelona, Catalonia, Spain, and Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - Luis C. Pardo
- Group de Caracterització de Materials, Department de Física I Enginyeria Nuclear, ETSEIB, Diagonal 647, Universitat Politècnica de Catalunya, 08028 Barcelona, Catalonia, Spain, and Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - María Barrio
- Group de Caracterització de Materials, Department de Física I Enginyeria Nuclear, ETSEIB, Diagonal 647, Universitat Politècnica de Catalunya, 08028 Barcelona, Catalonia, Spain, and Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - Sylwester J. Rzoska
- Group de Caracterització de Materials, Department de Física I Enginyeria Nuclear, ETSEIB, Diagonal 647, Universitat Politècnica de Catalunya, 08028 Barcelona, Catalonia, Spain, and Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - Aleksandra Droz-Rzoska
- Group de Caracterització de Materials, Department de Física I Enginyeria Nuclear, ETSEIB, Diagonal 647, Universitat Politècnica de Catalunya, 08028 Barcelona, Catalonia, Spain, and Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
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18
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Gainaru C, Hiller W, Böhmer R. A Dielectric Study of Oligo- and Poly(propylene glycol). Macromolecules 2010. [DOI: 10.1021/ma9026383] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Catalin Gainaru
- Fakultät für Physik, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - Wolf Hiller
- Fakultät für Chemie, Technische Universität Dortmund, 44221 Dortmund, Germany
| | - Roland Böhmer
- Fakultät für Physik, Technische Universität Dortmund, 44221 Dortmund, Germany
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19
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Casalini R, Roland CM. Anomalous properties of the local dynamics in polymer glasses. J Chem Phys 2009; 131:114501. [DOI: 10.1063/1.3223279] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Bian Y, Mijović J. Molecular Dynamics of PEGylated Multifunctional Polyhedral Oligomeric Silsesquioxane. Macromolecules 2009. [DOI: 10.1021/ma900090j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu Bian
- Othmer-Jacobs Department of Chemical and Biological Engineering Polytechnic Institute of New York University Six Metrotech Center, Brooklyn, New York 11201
| | - Jovan Mijović
- Othmer-Jacobs Department of Chemical and Biological Engineering Polytechnic Institute of New York University Six Metrotech Center, Brooklyn, New York 11201
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21
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Grzybowska K, Grzybowski A, Paluch M. Role of defects in the nonmonotonic behavior of secondary relaxation of polypropylene glycols. J Chem Phys 2008; 128:134904. [DOI: 10.1063/1.2901045] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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