Abstract
Various crystalline textures have been identified in a crystallizable block copolymer system, polystyrene-block-[syndiotactic poly(propylene)] (PS-sPP), having a glass-transition temperature of PS (T g,PS ) located in the midst of the sPP crystallization window. A confined morphology for the crystallization of sPP was observed while the crystallization temperature of sPP (F c,sPP ) was less than T g,PS. A further increase in T c,sPP could lead to a breakout in nanostructure. This study revealed the T g effect on crystal-lization-induced morphological changes of block copolymers from confinement to breakout.