NDLI: Poly(ionic liquid)s-based nanocomposite polyelectrolytes with tunable ionic conductivity prepared via SI-ATRP

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Back cover

Polymer Chemistry Vol -4

Polymer Chemistry Vol -3

Polymer Chemistry Vol -2

Polymer Chemistry Vol -1

Poly(ionic liquid)s-based nanocomposite polyelectrolytes with tunable ionic conductivity prepared via SI-ATRP

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhou, Yin-Ning Luo, Zheng-Hong Luo, Jiang-Shui Wang, Ping
Copyright Year	2014
Abstract	In this study, a novel kind of organic–inorganic core–shell SiO2-poly(p-vinylbenzyl) trimethylammonium tetrafluoroborate (SiO2–P[VBTMA][BF4]) nanoparticle was well designed and successfully synthesized via surface-initiated atom transfer radical polymerization (SI-ATRP). Fourier transform infrared spectroscopy (FT-IR), 1H nuclear magnetic resonance (1H NMR), X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS) and scanning electron microscopy (SEM) were used to confirm the formation of the core–shell nanoparticles and the surface modification. In order to overcome the challenge of the characterization of the number average molecular weight of poly(ionic liquid)s, “sacrificial initiator” method was used here employing a trimethylsilyl (TMS)-labeled initiator as the NMR marker for integration. In addition, good thermal stability of the new hybrid polyelectrolyte was proved by thermogravimetric analysis. The electrochemical impedance measurements revealed that the room temperature conductivity reached 10−4 S cm−1, which is much higher than that of the pure poly(ionic liquid)s and varies with the amount of the grafted polymer and the test temperature. The X-ray diffraction (XRD) tests further investigated the crystal structure of the nanocomposite and pure P[VBTMA][BF4]. The temperature dependence of ionic conductivity conforms to Arrhenius behavior for both of the nanocomposites and the pure polymer. The results indicated that the SI-ATRP approach provided a simple and versatile route to tune the ionic conductivity of the hybrid nanoparticles by changing the chain length of the grafted polymer, which can be potentially used in a variety of electrochemical devices.
Starting Page	882
Ending Page	891
Page Count	10
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	5
Issue Number	3
Journal	Polymer Chemistry
DOI	10.1039/c3py01025b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Atom-transfer radical-polymerization Thermogravimetric analysis Nanoparticle Polymer Trimethylsilyl Fourier-transform infrared spectroscopy Photoemission spectroscopy Scanning electron microscope Ionic liquid Arrhenius Polyelectrolyte X-ray crystallography Fourier Dynamic light scattering Tetrafluoroborate Electrochemistry Arrhenius equation Nanocomposite TMS Nuclear magnetic resonance Molar mass distribution Correlation and dependence X-ray photoelectron spectroscopy Electrical impedance
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

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