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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3698

Title: ANTISTATIC POLYMER LAYERS BASED ON POLY(ISOTHIANAPHTHENE) APPLIED FROM AQUEOUS COMPOSITIONS
Authors: DEFIEUW, G
SAMIJN, R
HOOGMARTENS, I
VANDERZANDE, Dirk
GELAN, Jan
Issue Date: 1993
Publisher: ELSEVIER SCIENCE SA LAUSANNE
Citation: SYNTHETIC METALS, 57(1). p. 3702-3706
Abstract: Electrostatic charging of photographic materials can be avoided by applying an antistatic coating to one or both sides of the photographic film. Electronically conducting polymers can be used for this application especially because the conductivity is independent from the relative humidity. However, these polymers usually are deeply coloured. It has been suggested that the absorption of polyisothianaphthene in the visible part of the spectrum is low, due to its low energy band gap. Application of polyisothianaphthene, however, is difficult due to its insolubility. A method is provided wherein an antistatic layer of polyisothanaphthene is coated from an aqueous dispersion. In this method polyisothianaphthene is polymerised in concentrated sulphuric acid and dispersed in water with the help of lambda carrageenan as a polymeric surfactant. Coating from this dispersion on a polyethylene terephthalate substrate yields a transparent antistatic film whose logarithm of the surface resistivity is 8.48 OMEGA/Square.
Notes: LIMBURGS UNIV CENTRUM,INST MAT RES,DIV SCHEIKUNDE,B-3590 DIEPENBEEK,BELGIUM.DEFIEUW, G, AGFA GEVAERT NV,SEPTEST 27,B-2640 MORTSEL,BELGIUM.
URI: http://hdl.handle.net/1942/3698
ISI #: A1993LK89000039
ISSN: 0379-6779
Type: Journal Contribution
Appears in Collections: Research publications

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