Polyvinylpyrenal--an intrinsic photoconductor and active matrix polymer

An aromatic polyvinyl polymer represented by the formula ##SPC7##

• wherein
• R.sub.1 is defined as a hydrogen atom, a lower alkyl group or as a lower alkyl carbonyl group;
• R.sub.2 is an aromatic polycyclic radical having 4-5 fused ring nuclei or a 3 ringed N-containing heterocyclic group of the formula ##SPC8##
• in which R.sub.4 is individually defined at each occurrence as a lower alkyl group, a lower alkoxy group, a halo group, an amino group or a cyano group, R.sub.7 is a lower alkyl group and q is defined as 0-2;
• R.sub.3 and R.sub.6 are polymeric end groups;
• and
• m, n, o and p are positive numbers commensurate with a number average molecular weight of at least about 5,000;
• m, n and o falling with the respective ratios of about 1-6:0-1:1-8 in random or block polymers.