Synthesis of Polyamides and Polyesters Having Various Functional Groups

Polyamides and polyesters having various functional groups have been synthesized either by the polycondensation of functional monomers having a high reactivity or by the modification of unsaturated polymers by means of suitable polymer reactions. Polyamides or polyesters having hydrophilic groups such as hydroxyl group have a high affinity for moisture adsorption and are applicable to membrane uses. Photosensitive polyamides or polyesters were also prepared.