CONFORMATIONAL AND HYDRODYNAMIC PROPERTIE S OF A COMB-LIKE POLYMER WITH HYDROGEN-BONDS IN THE SIDE-CHAINS

Intrinsic viscosity [eta] and the diffusion (D) and buoyancy (-s) coef ficients in chloroform were: measured for the samples of poly[4-vinylp henylaminovinylideneketo (4-n-hexyl) phenylene], a comblike polymer wi th hydrogen bonds in the side chains. power functions of [eta] and (-s ) vs. MM are characterized by power indexes, which differ significantl y from 0.5, The effects of excluded volume and permeability of polymer molecules on their hydrodynamic and conformational characteristics we re studied, The length of the Kuhn segment obtained for the molecular chain A = (20 +/- 1) nm significantly exceeds that for the comblike po lymers studied earlier, This is explained both by specific features of the structure of a mesogenic nucleus of the side chain and by the cha racter of bonding of the side chain to the polymer backbone.