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The O-52 network by molecular design: CECD tetrablock terpolymers

Abstract : Varying the length of poly(dimethylsiloxane) in poly(cyclohexylethylene-b-ethylene-b-cyclohexylethylene-b-dimethylsiloxane) (CECD) block terpolymers between 0 and 20% produces the sequence of ordered phases: cylindrical-to-network-to-cylindrical. Small-angle X-ray scattering and transmission electron microscopy demonstrate Pnna space group symmetry and a unique network morphology stabilized by the asymmetric molecular architecture and block interactions. These results establish a new design principle for the generation of triply periodic and multiply continuous nano-structured soft materials.
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Submitted on : Tuesday, February 11, 2014 - 6:11:25 PM
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Michael J. Bluemle, Guillaume Fleury, Timothy P. Lodge, Frank S. Bates. The O-52 network by molecular design: CECD tetrablock terpolymers. Soft Matter, Royal Society of Chemistry, 2009, 5 (8), pp.1587-1590. ⟨10.1039/b902367d⟩. ⟨hal-00945190⟩



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