Browsing by Subject "Hydrochloric acid"

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    UV-induced acid-base chemistry within the PVC matrix: Wavelength selectivity
    (ACS, Washington, DC, United States, 2000) Süzer, Şefik; Birer O.
    The dehydrochlorination of polyvinyl chlorides (PVC) is investigated by using it as an in-situ Bronsted acid source, in blends with pH indicators for optical changes, and with basic forms of conducting polymers to determine the electrical conductivity changes. The in-situ created HCl was responsible for the optical and electrical conductivity changes in pH indicator+PVC and nonconducting electroactive polymer (PANI) or PANI+PVC systems. It was possible to sensitized PVC and trigger polyene formation at higher wavelengths. The nature of polyene formation was strongly dependent on the wavelength of irradiation as well as the amount of energy transferred to the matrix from the sensitizer.