3] were used as the monomer and the oxidizing agent, respectively, to synthesize PVK (20).
The FTIR spectrum of PVK reveals the same features as reported in the literature (20-22): characteristic bands in the range of 700-800 [cm.
1] is due to the C--N bond of the carbazole ring of PVK shifting to 1310 [cm.
A pattern "NUS-UH" was written on the spin-coated PVK
The average molecular weights of polymers and co-polymers are the following: PVK 10000-20000, PEPC 900-1000, P-3I-9VC 1000-10000, both P-9VC : OMA and P-3I-9VC : OMA 5000-7000.
It can be seen that after depositing the polymeric layer of PVK on a free surface of CISCuT, a small decrease in the absolute value of [V.
So, the process of charge emission in our samples of PVK is bulk limited and seems to be governed by a mechanism like the Poole-Frenkel effect.
This suggests that the experimental data obtained in processes involving activation energy measurements in pendant group polymers as PVK must be tried with care given the importance of these type of polymer in the modeling and fabrication of organic electronic devices such as organic light emitting diodes and molecular junctions.
The UV response is attributed to HOMO--LUMO transition of PVK
Five grams (5 g) of PVK
was dissolved in 600 mL of toluene and cyclohexanone (4:1 by volume) in a beaker through heating and stirring at 50[degrees]C for 4 h.
Our samples have the following composition: the polymer matrix PVK
(Poly(N-vinyl-carbazole)) has been doped with 10 wt% of the optically active molecule DMNPAA (representation: inlay into [ILLUSTRATION FOR FIGURE 1 OMITTED] [2,5-dimethyl-4-(p-nitrophenylazo)anisole) and 30 wt% of ECZ (N-ethylcarbazole) which acts as a plasticizer.
Tenders are invited for Lifting, transportation & unloading of 70,000 M 3 of Sand from Stock Yard to Sand Stowing Bunker at PVK
5 Shaft, Kothagudem Area, Khammam.