
5: POLY(PHENYLENE SULFIDE) 145
can be obtained by a linear interpolation of the
assessed values [94].
5.7.6 Ozone Filter Materials
In electrophotographic copier processes and in
printing processes, small amounts of ozone are
formed. The resulting ozone is constantly given off
into the surrounding air by the apparatuses. The
removal of ozone from the air-stream released by such
apparatuses can be achieved by a polymer-based fil-
ter composed of a PPS. When the PPS is contacted
with the ozone-containing medium, the sulfide units
are oxidized to a sulfoxide [95].
The polymers can be used as powder, fibers, films,
or moldings for the productionof a filter. The polymers ...