5,783.111  25  26  TABLE4  TABLE  5  TABLE  3  EXAMPLE 7  EXAMPLES $^{Conductivity, (Siem) }$ EXAMPLE4  EXAMPLE6  The inverse phenomenon, although somewhat less  dramatic, is seen in some blends of Example 6. Here  Blends were prepared according to the procedures of  Method D [however, at 190°  C.. instead of 170°  C. ] of nylon  12 (Polysciences), PANI(CSA)$_{0}$ _ 5 •  and EG and SG, which  both dissolve the conductive complex. The electrical con› ductivities were measured to be lx10-$^{3 }$and 1x10-$^{11 }$for the  compositions containing EG and SG, respectively. This  example shows that the substituted aromatic compounds that  dissolve conductive polyaniline salt complexes need to be  compatible with the physicO’chemical nature of the insulat› ing matrix polymer. Here, the polar nylon 12 displays a  dramatically enhanced conductivity with the gallate EG.  which is relatively polar. By contrast, the very long alkyl tail  of SG is nonpolar. and therefore is not optimal for blending  with nylon 12, leading to a very low conductivity.  Example 3 was repeated. but instead of 1.05 g, only 0.53  g of the substituted aromatic compound was used; blends  were prepared, according to method D, of PANI(DBSA)$_{0}$ _ 5 ,  polypropylene and a variety a of gallates. all of which were  determined to be solvents for the conductive polyaniline salt  complex according to Method B. The values of the electrical  conductivities of the blends are collected in Table 4.  In all of the above cases the substituted aromatic com› pounds were solvents for the conductive polyaniline salt  complexes; except for the complex protonated with HCl. As  is clear from the above table, the latter blend, accordingly.  did not exhibit an improved conductivity.  *HBBz.E: p-hydroxybenroic acid benzyl ester  **HBDE: p-hydroxybenzoic acid dodecyl ester  Example 3 was repeated: blends were prepared, according  to method D, of PANI(DBSA)$_{0}$ _ 5 •  polypropylene and a great  variety of substituted aromatic compounds, all of which  were determined to be solvents for the conductive polya- niline salt complex according to Method  B.  The values of the  electrical conductivities of the blends are collected in Table  3.  Example 3 was repeated, but instead of PANI(DBSA)$_{0}$ _ 5 •  conductive polyaniline salt complexes were used that were  protonated with CSA. TSA. according to Method A-2.  HCl-protonated PANI was used directly as recovered from  the polymerization in Method A-1. Blends were prepared,  according to method D. of the salt complexes, polypropy- lene and various substituted aromatic compounds. The val› ues of the electrical conductivities of the blends are collected  in Table 5.  A polymer blend was prepared according to Method C  from PANI(DBSA)0.5. alkyldimethylolphenol. and polyeth› ylene. The measured electrical conductivity of the resulting  blend was less than 10---9  Siem.  This example demonstrates that the position of the three  OH-groups relative to the phenyl ring is critical.  •a  significantly smaller amount of gallates was employed.  al.k:yl<limethylolphenol (R  is  alkyl)  Electrical conductivities of blends of PANI(DBSAlo.s, polypropylene  and various gallates•  Compowd  ethyl gallate  (EG)  propy I gallate (PO)  buty I gallate  iso-amyl gallate  octy  I gallate  dodecyl gallate  cetyl gallate  stearyl gallate (SO)  Conductivity, (Siem)  7.1  X  10- 3  9.1  X  10- 3  6.6  X  10- 2  3.6  X  10- 2  2.1  X  10- 2  1.6  X  10- 2  1.1 X  10- 2  7.4 X 10-- no◊•  CH2  I  HO  Electrical conductivities of blends of polypropylene, various substituted  aromatic compounds, and polyaniline protonated with different acids.  Protonic Acid  Subst. Arom. Compound  Conductivity, (Siem)  CSA  CSA  CSA  CSA  TSA  TSA  TSA  TSA  HCI  EG  PG  SG  HBBzE*  SG  EG  dodecy lresorcinol  HBDE••  so  2.2  X  10- 3  1.0  X  10- 3  2.3 X 10-•  3.0 X 10"""  5.3  X  10- 1  1.0 X 10-,;  2.2  X 10-3  4.0  X  10 4  <6 X 10- 11  Electrical conductivities of blends of PANI(DBSA)o_$_{5}$ ,  polypropylene  and  various substituted  aromatic compowds  Compound  4-phenylphenol  2-phenylphenol  hydroquinone benzyl ether  benzyl 4-hydroxybenzoate  bispheno!A  oodecyl 4-hydroxybenzoate  ethyl dihydroxybenzoate  3,3’ -<>thylcnedioxydiphenol  tert-butylhydroquinone  tert-butylcatechol  pheny lhydroquinone  JH:umylphenol  2,4-dihydroxybenzophenone  oodecylresorcinol  2-hydroxydiphenylmethane  2,3,4-trihydroxybenzophenone  ethy I gallate  stearyl gallate  1.9  X  10"""  1.9 X 10"""  6.3  X  10-11  1.3 X 10"""  L3 X 10_,,  4.0  X  10 4  1.4 X 10"""  1.1 X  10 4  3.5  X  10 4  3.4 X 10_.  3.8 X 10_.  3.8  X  10- 2  1.4  X 10_.  2.1  X  10- 2  9.0  X  10- 2  5.6x 10 4  2.3  X  10- 2  3.4  X 10-t 