No abstract

calculated from the oxidation potential versus the internal standard of ferrocene/ferrocenium and the I p (5.43 eV) so obtained for PATPD was in good agreement with the I p reported for TPD based materials (5.4 eV determined by UV-PES) [26].Absorption Spectra: Absorption spectra of the samples were measured with a Cary 5G spectrophotometer.Dark Conductivity and Photoconductivity: Steady-state conductivity properties were determined in the dark. To measure the steadystate dark conductivity, an electric field (E a ) was applied and the current (i dark ) was measured. To assure steady-state conditions a dwell time of 15 s between each reading was used. The applied electric field was swept from 0 to 76 V lm ±1 over a period of 7 min. The current was measured using a Keithley 6517A electrometer.Four-Wave Mixing and Exposure Dependent Transient Four-Wave Mixing Experiments: A detailed discussion about the experimental set-up is given in [22].

“Side-chain-type” and crosslinkable quaternized polypropylene was prepared by heterogeneous Ziegler–Natta catalyst mediated polymerization for use in highly stable anion exchange membranes.