Optical properties of poly(vinyl chloride)/poly(ethylene oxide) blend

Al-Ramadin, Y.

doi:10.1016/s0925-3467(00)00007-0

Cited by 48 publications

(24 citation statements)

References 14 publications

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“…A correlation can be seen in Table 1 between the values of the band gaps and the activation energies as a function of NaClO 4 concentration. The variation of band gap values for the polymer electrolyte films with different salt ratios is in agreement with the results reported on other polymeric materials [24,25]. In general, it can be concluded that the value of the optical band gap decreases with increasing dopant concentration.…”

Section: Transference Numbersupporting

confidence: 90%

Electrical, optical, and structural characterization of polymer blend (PVC/PMMA) electrolyte films

Achari

Reddy

Sharma

et al. 2007

Ionics

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Ion-conducting solid polymer blend electrolytes based on polyvinyl chloride (PVC)/poly methyl methacrylate (PMMA) complexed with sodium perchlorate (NaClO 4 ) were prepared in various concentrations by solution cast technique. The features of complexation of the electrolytes were studied by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. DC conductivity of the films was measured in the temperature range 303-398 K. Transference number measurements were carried out to investigate the nature of charge transport in the polymer blend electrolyte system. The electrical conductivity increased with increasing dopant concentration, which is attributed to the formation of charge transfer complexes. The polymer complexes exhibited Arrhenius type dependence of conductivity with temperature. In the temperature range studied, two regions with different activation energies were observed. Transference number data showed that the charge transport in this system is predominantly due to ions. Optical properties like absorption edge, direct band gap, and indirect band gap were estimated for pure and doped films from their optical absorption spectra in the wavelength region 200-600 nm. It was found that the energy gap and band edge values shifted to lower energies on doping with NaClO 4 salt.

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Section: Transference Numbersupporting

confidence: 90%

Electrical, optical, and structural characterization of polymer blend (PVC/PMMA) electrolyte films

Achari

Reddy

Sharma

et al. 2007

Ionics

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“…The specimens were prepared by casting from solution and the behavior of ac-conductivity of PVC/PEO blend and the optical absorption in the UV-Visible region for PVC polymer blended with the PEO was measured as a function of PEO concentration. It was shown both the optical energy and acconductivity decrease with increasing the PEO content [12]. PVC filled with copper nanoparticles has been produced via electrical explosion of wire and behavior of the heat capacity of the composite was investigated under variation of temperature and concentration of the filler phase [13].…”

Section: Page 3 Of 18mentioning

confidence: 99%

WITHDRAWN: Optical properties of transparent and conductive composite layers of nanosilver intercalated graphene embedded poly(vinyl chloride)

Saadatabadi

Nateghi

Borhanizarandi

2015

Optik - International Journal for Light and Electron Optics

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“…The d-d transitions appeared in the visible region. These transitions are assigned in relevance to the structures of complexes [21,22].…”

Section: Resultsmentioning

confidence: 99%

Study of the optical properties of poly(vinyl chloride)-4-[(5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl]phenol complexes

Witwit

2014

Eur. J. Chem.

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KEYWORDSThe most widely practiced reaction of diazonium salts is azo coupling. In this process, the diazonium compound is attacked by an electron-rich substrate. When the coupling partners are arenes (phenols), the process is an example of electrophilic aromatic substitution. Poly (vinyl chloride) (PVC) react with 4-[(5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl]phenol (L) in THF to form the PVC-L compound, which have been characterized by spectroscopic methods. PVC-L has further been reacted with different metals ions to form PVC-L-M II complexes. The structure of these complexes has been characterized by FT-IR and UV-Vis spectrophotometry. The optical properties in the region from 200-900 nm were also studied using UV-Vis spectrophotometer. The optical data analyzed and interpreted in term of the theory of phonon assisted direct electronic transitions according to energy gap data the conductivity of PVC and the complexes.

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Optical properties of poly(vinyl chloride)/poly(ethylene oxide) blend

Cited by 48 publications

References 14 publications

Electrical, optical, and structural characterization of polymer blend (PVC/PMMA) electrolyte films

Electrical, optical, and structural characterization of polymer blend (PVC/PMMA) electrolyte films

WITHDRAWN: Optical properties of transparent and conductive composite layers of nanosilver intercalated graphene embedded poly(vinyl chloride)

Study of the optical properties of poly(vinyl chloride)-4-[(5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl]phenol complexes

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