Interface formation between Ca and poly(p-phenylene vinylene) derivatives having electron-withdrawing 1,3,4-oxadiazole or electron-donating alkoxy pendants

We have studied the interface formation between Ca and poly(p-phenylene vinylene) derivatives having electron deficient 1,3,4-oxadiazole group (poly[2-{4-[5-(4-tert-butylphenyl)-1,3,4-oxadiazolyl]phenyl}-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene]) (P-1)