situated within its heterocyclic ring structure this bifunctionality allows not only good solvent solubility characteristics but it also provides the secondary amine structure common to gel inhibitors specifically 1 186 g of 1 acetylpiperazine was added to a 10 ml ptfe screw cap vial and heated to 100 u00b0 c for 20 min 308 mg of polyaniline was quickly added to this solvent with vigorous stirring for a few minutes the solution became homogeneous free from gel particles in a short time a thermally annealed film and an ip film were prepared in the usual fashion both films were flexible and of high quality and had high conductivities after doping in 1 n hcl this example shows that such bifunctional compounds can be used advantageously to dissolve eb at concentrations gt 20 w w however these solutions had short gelation times which were more advantageously used by the addition of small amounts of other gel inhibitors table 2 shows the results of 14 different experiments using different gel inhibitcir compounds prepared with nmp solutions containing eb in the range of 19 to 21 w w and variable amounts of gi to eb ranging from 0 7 to 2 5 2 5 to 5 0 in the case of 2 methylaziridine table 2 also lists the subsequent doping effects on the conductivities s s cm and mechanical integrity of these thermally annealed films the films indicated 34 very brittle 34 could not be measured.