Mg. Zolotukhin et An. Lachinov, POLY(PHTHALIDYLIDENEARYLENE)S - EFFECT OF PRESSURE ON THE CONDUCTIVITY OF POLY(3,3-PHTHALIDYLIDENE-4,4'-BIPHENYLYLENE), Macromolecular chemistry and physics, 195(6), 1994, pp. 2013-2021
Poly(3,3-phthalidylidene-4,4'-biphenylylene) (PPB) was considered to b
e a polymer containing pressure-sensitive moieties as repeating units
in the main chain. The effect of pressure on the properties of PPB was
studied. Thin films of the undoped polymer were found to become condu
ctive under slight pressure. The conductivity increases from 10(-14) U
p to 10(-3) OMEGA-1 . cm-1 under a pressure of about 3 . 10(5) Pa (0,3
kg/cm2). An effective method is used to visualize the pattern of cond
ucting sites. These may be represented by channels (or domains) in the
polymer film.