A shear stabilized biaxial texture in a lamellar block copolymer
Conference
·
OSTI ID:468798
- Univ. of Pennsylvania, Philadelphia, PA (United States)
Block copolymers spontaneously self-assemble into a variety of morphologies. Recent studies have produced a biaxial texture in poly(styrene-b-ethylene propylene), SEP, diblock copolymers by applying oscillatory shear. This biaxial texture consists of {open_quotes}parallel{close_quotes} lamellae (normal to lamellae aligned perpendicular to shearing surfaces) and {open_quotes}transverse{close_quotes} lamellae (normal to lamellae aligned parallel to shearing direction) according to small-angle X-ray scattering, SAXS. The present study has determined how these two populations of lamellae are arranged and how they relax upon quiescent annealing by examining the superstructure via FE-SEM.
- OSTI ID:
- 468798
- Report Number(s):
- CONF-960877--
- Country of Publication:
- United States
- Language:
- English
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