Core-shell gyroid morphology in a poly(isoprene-block-styrene-block- dimethylsiloxane) triblock copolymer

T. A. Shefelbine; M. E. Vigild; M. W. Matsen; D. A. Hajduk; M. A. Hillmyer; E. L. Cussler; F. S. Bates

doi:10.1021/ja991442h

Core-shell gyroid morphology in a poly(isoprene-block-styrene-block- dimethylsiloxane) triblock copolymer

T. A. Shefelbine, M. E. Vigild, M. W. Matsen, D. A. Hajduk, M. A. Hillmyer, E. L. Cussler, F. S. Bates

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Abstract

We report a new morphology in a poly(isoprene-block-styrene-block- dimethylsiloxane) ABC triblock copolymer. The most probable symmetry of the morphology (Ia3d) was determined from two-dimensional SAXS measurements performed on a sample with long-range order induced by an oscillatory shear field. By comparing the predictions of self-consistent field theory with TEM and SAXS and SANS powder diffraction patterns, we deduced that the morphology is a core-shell gyroid comprised of two independent and triply periodic poly(dimethylsiloxane) networks encased in poly(styrene) shells and separated by a continuous poly(isoprene) domain. Thus, this unique nanostructure divides space into five independent, three-dimensionally continuous domains.

Original language	English (US)
Pages (from-to)	8457-8465
Number of pages	9
Journal	Journal of the American Chemical Society
Volume	121
Issue number	37
DOIs	https://doi.org/10.1021/ja991442h
State	Published - Sep 22 1999

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title = "Core-shell gyroid morphology in a poly(isoprene-block-styrene-block- dimethylsiloxane) triblock copolymer",

abstract = "We report a new morphology in a poly(isoprene-block-styrene-block- dimethylsiloxane) ABC triblock copolymer. The most probable symmetry of the morphology (Ia3d) was determined from two-dimensional SAXS measurements performed on a sample with long-range order induced by an oscillatory shear field. By comparing the predictions of self-consistent field theory with TEM and SAXS and SANS powder diffraction patterns, we deduced that the morphology is a core-shell gyroid comprised of two independent and triply periodic poly(dimethylsiloxane) networks encased in poly(styrene) shells and separated by a continuous poly(isoprene) domain. Thus, this unique nanostructure divides space into five independent, three-dimensionally continuous domains.",

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T1 - Core-shell gyroid morphology in a poly(isoprene-block-styrene-block- dimethylsiloxane) triblock copolymer

AU - Shefelbine, T. A.

AU - Vigild, M. E.

AU - Matsen, M. W.

AU - Hajduk, D. A.

AU - Hillmyer, M. A.

AU - Cussler, E. L.

AU - Bates, F. S.

PY - 1999/9/22

Y1 - 1999/9/22

N2 - We report a new morphology in a poly(isoprene-block-styrene-block- dimethylsiloxane) ABC triblock copolymer. The most probable symmetry of the morphology (Ia3d) was determined from two-dimensional SAXS measurements performed on a sample with long-range order induced by an oscillatory shear field. By comparing the predictions of self-consistent field theory with TEM and SAXS and SANS powder diffraction patterns, we deduced that the morphology is a core-shell gyroid comprised of two independent and triply periodic poly(dimethylsiloxane) networks encased in poly(styrene) shells and separated by a continuous poly(isoprene) domain. Thus, this unique nanostructure divides space into five independent, three-dimensionally continuous domains.

AB - We report a new morphology in a poly(isoprene-block-styrene-block- dimethylsiloxane) ABC triblock copolymer. The most probable symmetry of the morphology (Ia3d) was determined from two-dimensional SAXS measurements performed on a sample with long-range order induced by an oscillatory shear field. By comparing the predictions of self-consistent field theory with TEM and SAXS and SANS powder diffraction patterns, we deduced that the morphology is a core-shell gyroid comprised of two independent and triply periodic poly(dimethylsiloxane) networks encased in poly(styrene) shells and separated by a continuous poly(isoprene) domain. Thus, this unique nanostructure divides space into five independent, three-dimensionally continuous domains.

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Core-shell gyroid morphology in a poly(isoprene-block-styrene-block- dimethylsiloxane) triblock copolymer

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