Polymers with conjugated double bonds

A process for producing a polymer compound with conjugated double bonds, including heterocyclic and/or carbocyclic rings or ring systems in which said rings or ring systems are linked with one another in pairs via a carbon atom acting as a bridge member, said polymer compound having, at least, five of said rings or ring members, comprising the step of:

• reacting at least one compound of the formula ##STR12## with at least one compound of the formula
• H-R"-H (II)
• wherein,
• X represents a substituent selected from the group consisting of fluorine, chlorine, bromine, iodine, hydroxyl, a sulfate radical and a radical of the group consisting of --OR, --SO.sub.3 F, --SO.sub.3 R and --NR.sub.2, in which X need not represent the same substituent when a plurality of compounds of formula I are reacted;
• X.sub.2 represents two radicals X., or an oxygen atom of a carbonyl group;
• R represents the same or different substituents selected from the group consisting of an alkyl radical having from 1 to 8 carbon atoms, phenyl and a hydrogen atom;
• and
• R" represents the same or different substituents selected from the group consisting of a monocyclic arylene radical, a monocyclic heteroarylene radical, a polycyclic arylene radical, a polycyclic heteroarylene radical, a monocyclic arylene radical substituted by at least one hydrocarbon radical having from 1 to 8 carbon atoms, a monocyclic heteroarylene radical substituted by at least one hydrocarbon radical having from 1 to 8 carbon atoms, a polycyclic arylene radical substituted by at least one hydrocarbon radical having from 1 to 8 carbon atoms and a polycyclic heteroarylene radical substituted by at least one hydrocarbon radical having from 1 to 8 carbon atoms.