Unveiling the Sliding Motion in Topological Networks: Influence of the Swelling Solvent on the Relaxation Dynamics

Supramolecular sliding gels show specific viscoelastic behavior strongly dependent on the swelling solvent. The gels that are swollen in H2O possess highly crosslinked domains connected by short flexible strands, whereas in DMSO the network strands are long and rigid because of the presence of transient physical tubes. Furthermore, the mechanical behavior in DMSO corresponds to a simple Zener model, underlining the high relaxation ability with a single relaxation time.

[1]  S. Craig,et al.  Rational Control of Viscoelastic Properties in Multicomponent Associative Polymer Networks , 2005 .

[2]  G. Hadziioannou,et al.  Synthesis and characterization of high molecular weight polyrotaxanes: towards the control over a wide range of threaded α-cyclodextrins. , 2005, Soft matter.

[3]  G. Hadziioannou,et al.  From high molecular weight precursor polyrotaxanes to supramolecular sliding networks. The ‘sliding gels’ , 2005 .

[4]  C. von Ferber,et al.  Dynamics of end-linked star-polymer structures. , 2005, The Journal of chemical physics.

[5]  S. Granick,et al.  A multitude of macromolecules , 2004, Nature materials.

[6]  K. Ito,et al.  SANS studies on spatial inhomogeneities of slide-ring gels , 2004 .

[7]  K. Ito,et al.  The Polyrotaxane Gel: A Topological Gel by Figure‐of‐Eight Cross‐links , 2001 .

[8]  G. Hild Model networks based on `endlinking' processes: synthesis, structure and properties , 1998 .

[9]  A. Harada Preparation and structures of supramolecules between cyclodextrins and polymers , 1996 .

[10]  A. Harada,et al.  Preparation and properties of inclusion complexes of polyethylene glycol with .alpha.-cyclodextrin , 1993 .

[11]  P. Flory,et al.  STATISTICAL MECHANICS OF CROSS-LINKED POLYMER NETWORKS II. SWELLING , 1943 .

[12]  M. Mutter Soluble polymers in organic synthesis: I. Preparation of polymer reagents using polyethylene glycol with terminal amino groups as polymeric component , 1978 .

[13]  P. R. Pinnock,et al.  The mechanical properties of solid polymers , 1966 .