The crystallization behaviour of polydisperse and monodisperse poly (ethylene oxide-styrene-ethylene oxide)triblock copolymers has been studied

including these samples

of which the microphase separation took place first at high casting temperature and then crystallized at room temperature. The results show that the crystallization behavior of the copolymer could be very different when its microphase seperation is different due to the polydispersity of its molecular weight

the different casting solvents

and the castng temperature which affect the crystalline ability of PEO blockof it.