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POLYPYRROLE COMPOSITES
GIAN PIERO GARDINI and VlTTORIO BOCCHI
Organic Chemistry Dept., University of Parma, Viale delle Scienze,
43100 Parma (Italy)
After our pioneerlng work in 196611]on conductingpolypyrrole (PP), in
last years this material experienced great interest as a model compound~ due
to its easy preparation by anodlc oxidation and tar better a~r sta~11ity
with respect to polyacetylene and szmtlar polymers.
In an effort to overcome the limitations of known preparation
procedures~ we explored and developed a simple way to obtain highly
conducting ££ Dy intertaclal polymerization ot pyrrole promoted by 1:errlc
salts [2].
-i Conductivlties in the range of 1-50 S x cm were obtained tot
composites between P£ and glass fibers ~ wood ~ paper j
polystyrene-dlvlnylbenzene granules~ plastic or rubber tolls~ and so on.
Careful temperature control and suitable operating conditions allowed the
preparation ot a series ot new mater~als~ which in our opinlon~ deserve
attention and testing for foreseeable or unpredictable applications.
Also, powdered PP could be obtalned by chemical operations~ which
proved to be much simpler than those described in the literature; the PP
powder was usetul for the preparation o1: molded composites.
Lower conducting materials ~IU -3 S x cm -I) were also obtained by
doping indole oligomers.
Preliminary results ot experiments on new practical applications ot
the aforementioned materials will be presented.
REFERENCES
I A. Dall'Olio, S. Dascola, V. Varacca and V. Bocchi, C.R. Acad. Sci.
Ser. C~ 262 (1966) 1617.
2 V. Bocehi and G.P. Gardini, J.C.S. Chem. Com., 1986, in press.