TY - GEN
T1 - Controlling morphology in cocontinuous polymer blends
AU - Bell, Joel R.
AU - Lopez-Barron, Carlos R.
AU - Macosko, Chris
PY - 2007
Y1 - 2007
N2 - Cocontinuous morphologies, distinguished by the mutual interpenetration of two polymer phases, allow for enhanced mechanical properties, static charge dissipation, and barrier properties. Compatibilizers, e.g. block copolymers (bcp), are often added to hinder phase coarsening in blends of immiscible polymers and can improve adhesion at interfaces. We have studied the effect of bcp on the cocontinuous morphology of polystyrene (PS)/polyethylene (PE) and PS/poly (methylmethacrylate) PMMA model blends using scanning electron microscopy (SEM) with image analysis, 3D synchrotron x-ray microtomography, mercury porosimetry, solvent extraction, and rheology. We have shown that an optimal bcp suppresses coarsening in these blends and widens the range of cocontinuity.
AB - Cocontinuous morphologies, distinguished by the mutual interpenetration of two polymer phases, allow for enhanced mechanical properties, static charge dissipation, and barrier properties. Compatibilizers, e.g. block copolymers (bcp), are often added to hinder phase coarsening in blends of immiscible polymers and can improve adhesion at interfaces. We have studied the effect of bcp on the cocontinuous morphology of polystyrene (PS)/polyethylene (PE) and PS/poly (methylmethacrylate) PMMA model blends using scanning electron microscopy (SEM) with image analysis, 3D synchrotron x-ray microtomography, mercury porosimetry, solvent extraction, and rheology. We have shown that an optimal bcp suppresses coarsening in these blends and widens the range of cocontinuity.
KW - Block copolymer
KW - Cocontinuous
KW - Image analysis
KW - Polymer blends
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M3 - Conference contribution
AN - SCOPUS:34648828473
SN - 1604232145
SN - 9781604232141
T3 - Annual Technical Conference - ANTEC, Conference Proceedings
SP - 328
EP - 331
BT - Society of Plastics Engineers Annual Technical Conference
T2 - Society of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007
Y2 - 6 May 2007 through 11 May 2007
ER -