Poly[bis(4-phenyl)(2,4,6-triMethylphenyl)aMine];Poly[bis(4-phenyl)(2,4,6-triMethylphenyl)aMine] a poly(triaryl aMine) seMiconductor;PTAA a poly(triaryl amine) semiconductor;Poly[[(2,4,6-trimethylphenyl)imino][1,1'-biphenyl]-4,4'-diyl];PTAA(Mn15000-25000);PTAA(Mn6000-15000);PTAA, average Mn: 17,000;PTAA, average Mn: 20,000 - 40,000