1
|
Abutalib MM, Rajeh A. Influence of MWCNTs/Li-doped TiO2 nanoparticles on the structural, thermal, electrical and mechanical properties of poly (ethylene oxide)/poly (methylmethacrylate) composite. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121309] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
2
|
Abetz V, Chan CH, Luscombe CK, Matson JB, Merna J, Nakano T, Raos G, Russell GT. Quo Vadis, Macromolecular Science? Reflections by the IUPAC Polymer Division on the Occasion of the Staudinger Centenary. Isr J Chem 2020. [DOI: 10.1002/ijch.201900182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Volker Abetz
- Institute of Physical ChemistryUniversität HamburgHelmholtz-Zentrum GeesthachtInstitute of Polymer Research Germany
| | - Chin Han Chan
- Faculty of Applied Sciences, Universiti Teknologi MARA 40450 Shah Alam Selangor Malaysia
| | - Christine K. Luscombe
- Materials Science and Engineering Department; Molecular Engineering and Sciences InstituteUniversity of Washington Seattle USA
| | - John B. Matson
- Department of ChemistryVirginia Tech Center for Drug Discovery, and Macromolecules Innovation Institute Virginia Tech USA
| | - Jan Merna
- Department of PolymersUniversity of Chemistry and Technology Prague Czech Republic
| | | | - Guido Raos
- Dipartimento di ChimicaMateriali e Ing. Chimica “G. Natta”Politecnico di Milano Italy
| | - Gregory T. Russell
- School of Physical and Chemical SciencesUniversity of Canterbury Private Bag 4800 Christchurch New Zealand
| |
Collapse
|
3
|
Polymer Compositional Ratio-Dependent Morphology, Crystallinity, Dielectric Dispersion, Structural Dynamics, and Electrical Conductivity of PVDF/PEO Blend Films. Macromol Res 2019. [DOI: 10.1007/s13233-019-7142-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
4
|
Dhatarwal P, Sengwa RJ, Choudhary S. Effectively improved ionic conductivity of montmorillonite clay nanoplatelets incorporated nanocomposite solid polymer electrolytes for lithium ion-conducting devices. SN APPLIED SCIENCES 2018. [DOI: 10.1007/s42452-018-0119-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
5
|
Investigation on Structural and Dielectric Properties of Silica Nanoparticles Incorporated Poly(Ethylene Oxide)/Poly(Vinyl Pyrrolidone) Blend Matrix Based Nanocomposites. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-1034-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
6
|
Influence of solid polymer electrolyte preparation methods on the performance of (PEO–PMMA)–LiBF4 films for lithium-ion battery applications. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2354-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
7
|
Effects of amorphous silica nanoparticles and polymer blend compositions on the structural, thermal and dielectric properties of PEO–PMMA blend based polymer nanocomposites. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1510-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
8
|
Chan CH, Kammer HW. Characterization of polymer electrolytes by dielectric response using electrochemical impedance spectroscopy. PURE APPL CHEM 2018. [DOI: 10.1515/pac-2017-0911] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Authors present a phenomenological view on dielectric relaxation in polymer electrolytes, which is monitored by electrochemical impedance spectroscopy. Molecular interaction of polymer chains with salt molecules (or dipole-dipole interaction between segments and salt molecules) leads to dipolar molecular entities. Frequency-dependant impedance spectra are the key quantities of the interest for determination of electric properties of materials and their interfaces with conducting electrodes. Salt concentration serves as parameter. Bulk and interfacial properties of the samples are discussed in terms of impedance (Z
*) and modulus (M
*) spectra. We focus on two different classes of systems, i.e. high molar mass of poly(ethylene oxide) (PEO)+lithium perchlorate (LiClO4) (i.e. the inorganic salt) and epoxidized natural rubber (ENR-25) with 25 mol% of epoxide content+LiClO4. Impedance spectra with salt content as parameter tell us that we have interaction between dipolar entities leading to dispersion of relaxation times. However, as scaling relations show, dispersion of relaxation times does not depend on salt content in the PEO system. The relaxation peak for the imaginary part of electric modulus (M″) provides information on long-range motion of dipoles. Summarizing the results from imaginary part of impedance spectrum (Z″), tan δ (imaginary/real of permittivities) and M″ for the two systems under the discussion, PEO behaves like a mixture of chains with dipoles. There are interactions between the dipoles, but they are relaxing individually. Therefore, we see PEO-salt system as a polymer electrolyte where only a tiny fraction of added salt molecules becomes electrically active in promoting conductance. However, ENR-25-salt system behaves just as a macroscopic dipole and it can not display electrode polarization or electric relaxation because there is no mobility of individual dipoles. Hence, ENR-25-salt does not form a polymer electrolyte in the classic sense.
Collapse
Affiliation(s)
- Chin Han Chan
- Faculty of Applied Sciences , Universiti Teknologi MARA , 40450 Shah Alam, Selangor , Malaysia , Tel.: +6-03-5544 3882, Fax: +6-03-5544 4562, E-mail:
| | - Hans-Werner Kammer
- Faculty of Applied Sciences , Universiti Teknologi MARA , 40450 Shah Alam, Selangor , Malaysia
| |
Collapse
|
9
|
Choudhary S, Sengwa R. Effects of different inorganic nanoparticles on the structural, dielectric and ion transportation properties of polymers blend based nanocomposite solid polymer electrolytes. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.051] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|