EFFECTS OF MOLECULAR WEIGHT DISTRIBUTION ON THE FORMATION OF FIBERS OF ELECTROSPUN POLYSTYRENE

摘要

It is widely recognized that molecular weight distribution (MWD) is an important factor affecting the rheological behavior of polymer solutions. In this contribution, the effects of MWD on the formation of electrospun polystyrene fibers in THF have been studied. The results are compared with the monodisperse system. The importance of chain entanglements attributed to high molecular weight component within the polydisperse system has been acknowledged. Concentrations for the incipient as well as stable fiber formation in a polydisperse system may be predicted.