a) b - École Polytechnique de Montréal

As reviewed above, numerous models have been proposed but to date none of them are able to
predict the phase inversion composition for all binary polymer blends.
One of the most important applications of co-continuous blends is the fabrication of continuous
conductive parts in the blend. Several works have been done in this area to decrease the
percolation threshold of conductive polymers by making a network of conductive polymer in
another phase. As conductivity of the blend corresponds to the continuity of the conductive
polymer, the percolation threshold of continuity of the conductive component can be measured
by showing the percolation threshold of conductivity of the blend. Zilberman et al.(Zilberman,
Siegmann, & Narkis, 2000d) compared the conductivity of several binary blends such as
PANI/LLDPE, PANI/CoPA and PANI/(PS/DOP) (Figure 2-1). A detailed study of binary
conductive polymer blends will be conducted in the next sections.
Figure 2-1. Electrical conductivity versus PANI content of polymer/PANI binary
blends(Zilberman, et al., 2000d).
2.1.2.1.2 Interfacial Modification of Binary Blends
Compatibilizing agents (surfactants) have been long used with mixtures of low molecular weight
molecules. The earliest and simplest kind is soap made by boiling fats together with plant ashes,
which dates back to 2800 B.C. and was industrially developed in 1920’s. The term of
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