Supermolecular structure of ion chloride-modified polyurethano-acylsemicarbazides

摘要

Supermolecular structure of polyurethanesemicarbazides (PUS) with different quantitivies of FeCl_3 crystallohydrate has been studied by small-angle X-ray scattering. It was shown that modification of PUS with FeCl_3 is effective only at 0.2-0.4mol of salt content (to 1.0 mol dihydrazide fragment of hard segments). The reinforce of segregatioin of hard and soft blocks, increase of hard domains sizes and packing density of the hard block in it and corresponding by the strength of polymer at such FeCl_3 contents have been shown.