Abstract
AbstractLow‐molecular‐weight poly(ethylene oxide)‐polyalkane (PEO‐PA) diblock copolymers have been examined between the order‐disorder transition and PEO melting temperature using small‐angle neutron scattering (SANS), differential scanning calorimetry (DSC), and dynamic mechanical spectroscopy (DMS). Crystallization imposes layered ordering with polymer stems oriented perpendicular, or tilted, relative to the microdomain interface, thereby disrupting conventional amorphous microdomain morphologies. This effect can be used to switch the high symmetry bicontinuous ordered G phase to lower symmetry cylinders or lamellae.
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