| abstract |
Polymer compositions exhibiting liquid-crystalline phases contain chemically bonded mesogenic groups of the formula Ia and/or Ib: ##STR1## in which Q 1 is H, alkyl or alkoxy having 1-5 C atoms, F, Cl, Br or CN, n X 1 to X 5 each, independently of one another, are H or an alkyl group having up to 15 C atoms, in which it is also possible for one or two non-adjacent CH 2 groups to be replaced by a group from the group comprising --O--, --S--, --O--CO--O--, O--CO--NH--, --CO--, --CO--O--, --CO--S--, --S--CO--, --SO-- and --SO 2 --. n Process for the preparation of polymer compositions of this type comprises the polymerization or grafting of suitable monomers. n Polymer compositions of this type are used as substrates in electronics for the fiber and foil techniques. |