1-stearoylamino-3,5-bis(2-ethylhexylaminocarbonyl)benzene が n-decane 中で形成する水素結合性超分子ポリマーの構造とダイナミックス

概要

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Dynamic viscoelastic measurements, viscosity growth function measurements at the onset of steady shear flows and dielectric measurements were carried out in a highly viscoelastic system (SEH2B/C10), solutions of 1-stearoylamino-3,5-bis(2-ethylhexylaminocarbonyl)benzene (SEH2B) in n-decane (C10), to investigate structure and dynamics of a supramolecular polymer formed in the system via intermolecular hydrogen bonding. The SEH2B/C10 system showed almost the same viscoelastic and dielectric features: a single Maxwell element type viscoelasticity and single Debye-type dielectric response, over a wide concentration range as that observed in another, previously examined, supramolecular polymeric system (DO3B/C10) formed by N,N,N”-tris(3,7-dimethyloctyl)benzene-1,3,5- tricarboxamide in C10 irrespective of distinctive difference in chemical structure between SEH2B and DO3B. These reveal that structure including macro-dipole moments and dynamics of the supramolecular polymer of SEH2B is similar to that of the suprapolymer of DO3B beyond the difference in their chemical structures.
2011-06-15