TY - JOUR
T1 - Influence of crystallinity on the morphology of poly(ethylene oxide) containing diblock copolymers
AU - Hillmyer, Marc A.
AU - Bates, Frank S.
PY - 1997/5
Y1 - 1997/5
N2 - Low-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.
AB - Low-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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U2 - 10.1002/masy.19971170116
DO - 10.1002/masy.19971170116
M3 - Article
AN - SCOPUS:0031490324
SN - 1022-1360
VL - 117
SP - 121
EP - 130
JO - Macromolecular Symposia
JF - Macromolecular Symposia
ER -