| Abstract
| - The structure of a bis-urea based reversible polymer is investigated using capillary viscosimetry, infraredspectroscopy, small-angle neutron scattering, and rheology. The highly viscoelastic solutions obtained intoluene are due to the formation of long and rigid fibrillar species. The cross section of these wires ismeasured and is shown to likely contain two or three molecules per axial repetition unit.
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