MOLECULAR PACKING OF POLY(AZOMETHINE)S HAVING FLEXIBLE (N-ALKYLOXY)METHYL SIDE-CHAINS IN FILMS

The molecular packing of poly(azomethine)s having (n-alkyloxy)methyl s ide chains in films was studied by wide-angle X-ray scattering. Soluti on-cast films on silicon wafer and melt-sheared films show the same ty pe of molecular packing, i.e. the main chain layers are aligned parall el to the film surface but the main chains are macroscopically isotrop ic in the film surface plane. In the melt-sheared films, the shear doe s not orient the main chains but the main chain layers, which can be e asily understood by their geometric shapes.