Concluding remarks physical structure of the amorphous state

A year ago we planned this Symposium to give roughly equal representation to studies of amorphous polymers which on the one hand implied that the structure was essentially random and on the other hand suggested order persisting over distances of about 100 Å . In actuality, most of our contributors have endorsed the point of view that the amorphous polymers commonly studied do have random conformations and that long-range structure does not persist. And we must remember that there is a vast body of ex-periments on rubbers and glasses not referred to specifically in this Symposium which would present formidable problems of inter-pretation if random statistics are not applicable as a first approximation.