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Asymmetric Double Tetragonal Domain Packing from ABC Triblock Terpolymer Blends with Chain Length Difference Asai, Yusuke Takano, Atsushi Matsushita, Yushu open access “This document is the Accepted Manuscript version of a Published Work that appeared in final form in [Macromolecules], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [http://pubsdc3.acs.org/articlesonrequest/AOR-bCui3cBncBNP8h9ujIeU].” A specific phase structure was observed for binary blends of poly(isoprene)-block-poly(styrene)-block-poly(2-vinylpyridine) (ISP) triblock terpolymers with asymmetric chain lengths of two end-blocks. Tetragonal-packed cylinders were obtained from various binary blends on a wide range of volume fractions, although the sizes of I and P cylinders were highly asymmetric. Those structures have never been found for monodisperse ABC triblock terpolymers, and the three specific features have been confirmed: (1) I cylinders were metamorphosed into rod domains, and their interfaces have nonconstant mean curvatures; (2) the cross-sectional area ratio of I/P domain is qualitatively changed with the volume fraction of each component; and (3) spherical and cylindrical domains of P component coexist. The molecular design adopted in the present work, that is, I and P blocks in two parent terpolymers have both fairly large chain length difference, must lead to these new morphologies. ACS Publications 2016-09-08 eng journal article AM http://hdl.handle.net/2237/25215 https://nagoya.repo.nii.ac.jp/records/23027 https://doi.org/10.1021/acs.macromol.6b01670 0024-9297 Macromolecules 49 18 6940 6946 https://nagoya.repo.nii.ac.jp/record/23027/files/Supporting_Information.pdf application/pdf 583.7 kB 2017-09-08 https://nagoya.repo.nii.ac.jp/record/23027/files/Manuscript.pdf application/pdf 931.9 kB 2017-09-08