FT-IR and DSC studies of poly(vinylidene chloride-co-acrylonitrile) complexed with LiBF4

Shanthi, M.; Mathew, Chithra M.; Ulaganathan, Mani; Rajendran, S.

doi:10.1016/j.saa.2013.02.012

Cited by 25 publications

(16 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the figure also, it can be observed that the decreasing in peak intensity of the nitrile group C≡N after the addition of MgTf into both single and double plasticized PGPE systems shows the strong interaction between the Mg 2+ with the nitrile group [10]. The nitrile group also shifted from 2245 cm -1 (pure PVdCco-AN) to between 2247 cm -1 and 2253 cm -1 after the addition of SN, EC and 35 wt.% MgTf.…”

Section: -4mentioning

confidence: 82%

“…The plastic crystal gel polymer electrolytes (PGPEs) have been prepared which comprised of poly(vinylidene chloride-co-acrylonitrile) (PVdC-co-AN) as host polymer, Mg Triflate (MgTf) as dopant salt and SN as plasticizer. This type of host polymer has been chosen because of the promising properties of co-polymer based electrolytes [10] as it can give improvement in conductivity as well as good mechanical stability thus increase the performance of electrolytes in electrochemical cell. Magnesium (Mg) salts is used instead of the lithium one as Mg metal is easy to handle as it does not oxidised easily when exposed to air.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Studies of plastic crystal gel polymer electrolytes based on poly(vinylidene chloride-co-acrylonitrile)

Hambali¹,

Zainuddin²,

Supa’at³

et al. 2016

AIP Conference Proceedings

View full text Add to dashboard Cite

Section: -4mentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Studies of plastic crystal gel polymer electrolytes based on poly(vinylidene chloride-co-acrylonitrile)

Hambali¹,

Zainuddin²,

Supa’at³

et al. 2016

AIP Conference Proceedings

View full text Add to dashboard Cite

“…FT‐IR is used to track the evolution of characteristic vibrational modes after different drying temperature. Five important regions are shown in Figure , which are attributed to the B−F stretching mode (1033 cm −1 ), O−H bending mode of crystal water (1635 cm −1 ), O−H stretching mode of adsorbed water (about 3300 cm −1 ) and O−H stretching mode of crystal water (3617 cm −1 ), respectively. It should be noted that for the LiBF 4 solid which has been dried at 40 °C for 2 h (LB40), a blurry wide O−H stretching signal at about 3300 cm −1 appears, indicating the existence of adsorbed water.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Water‐Removing Method and Influences of Trace Water for LiBF₄

et al. 2019

View full text Add to dashboard Cite

Recent works show the promise for lithium tetrafluoroborate (LiBF4) as an electrolyte salt for lithium‐ion batteries. In this paper, LiBF4 is synthesized by a novel reaction between the as‐prepared anhydrous Li2SO3 and (C2H5)2O⋅BF3 in an aprotic solvent. The moisture sensitivity and water‐removing method of LiBF4 materials which has been dried under vacuum for 2 h at different temperature, is studied by Fourier transform infrared spectroscopy measurements. Results show that almost all of the adsorbed water would be removed at above 65 °C. With the increase of drying temperature, crystal water will decrease slowly, and almost disappear completely at 170 °C. However, due to the thermal decomposition of LiBF4, LiF and BF2OH impurities are formed as the temperature reaches 165 °C. So, we determine that the proper drying temperature is 155 °C, though the trace water cannot be removed thoroughly. Besides, influences of trace water on the electrochemical performance of Li/MCMB half‐cell with LiBF4 as electrolyte salt has been investigated. Results show that discharge plateaus at about 1.5 V vs. Li/Li+ will be lengthened with the increase of water content. Subsequently, the so‐called solid‐electrolyte interphase (SEI) film will become thicker and more resistant, which leads to poor Li+ ion migration and bad cycling performance.

show abstract

“…The mechanical mixture of paclitaxel with excipients and the NGR-SWCNT-Paclitaxel complex were analyzed by differential scanning calorimetry (Shanthi et al, 2013). The paclitaxel peak disappeared after it was absorbed by the SWCNTs.…”

Section: Determination Of Sp Complex Preparationmentioning

confidence: 99%

Preparation and biological activity of a paclitaxel-single-walled carbon nanotube complex

Fu¹,

Zhang²,

Wang³

et al. 2014

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. Single-walled carbon nanotubes (SWCNTs) have unique transmembrane abilities. The huge superficial area and abundance of π electrons confer SWCNTs perfect absorptive capability toward proteins, nucleates, and many drugs. These characteristics make SWCNTs a new and efficient drug carrier. The purpose of this study was to disperse SWCNTs in water and have paclitaxel absorbed onto them in order to construct an asparagine-glycine-arginine (NGR)-SWCNT-Paclitaxel complex as a targeting nanoparticle system. The NGR-SWCNTPaclitaxel complex was systematically studied, and analytical methods, including spectrophotometry for SWCNTs and high-performance liquid chromatography for paclitaxel, were employed. The preparation and the prescription of the NGR-SWCNT-Paclitaxel complex lyophilized powder were investigated. MCF-7 cancer cells, Sprague-Dawley rats, and S180 tumor-bearing mice were used as experimental subjects to evaluate the in vitro and in vivo activity of NGR-SWCNT-Paclitaxel complex dispersion. The complex dispersion showed obvious inhibition activity against MCF-7 cancer cells. Within 1 h, the NGR-SWCNT-Paclitaxel complex could be transferred to cells, and sustained the release of drugs. In addition, the tumor and liver targeting and improved therapeutic effects of the NGR-SWCNT-Paclitaxel complex were confirmed.

show abstract

FT-IR and DSC studies of poly(vinylidene chloride-co-acrylonitrile) complexed with LiBF4

Cited by 25 publications

References 24 publications

Studies of plastic crystal gel polymer electrolytes based on poly(vinylidene chloride-co-acrylonitrile)

Studies of plastic crystal gel polymer electrolytes based on poly(vinylidene chloride-co-acrylonitrile)

Synthesis, Water‐Removing Method and Influences of Trace Water for LiBF₄

Preparation and biological activity of a paclitaxel-single-walled carbon nanotube complex

Contact Info

Product

Resources

About

FT-IR and DSC studies of poly(vinylidene chloride-co-acrylonitrile) complexed with LiBF4

Cited by 25 publications

References 24 publications

Studies of plastic crystal gel polymer electrolytes based on poly(vinylidene chloride-co-acrylonitrile)

Studies of plastic crystal gel polymer electrolytes based on poly(vinylidene chloride-co-acrylonitrile)

Synthesis, Water‐Removing Method and Influences of Trace Water for LiBF4

Preparation and biological activity of a paclitaxel-single-walled carbon nanotube complex

Contact Info

Product

Resources

About

Synthesis, Water‐Removing Method and Influences of Trace Water for LiBF₄