Polysiloxane ionic liquids as good solvents for β-cyclodextrin-polydimethylsiloxane polyrotaxane structures

Beilstein Journal of Organic Chemistry

Maricel Danu¹  Laura Ursu¹  Constanta Ibanescu¹  Mariana Pinteala¹  Bogdan C. Simionescu¹  Rodinel Ardeleanu¹  Narcisa Marangoci¹ 

[1] Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania;

关键词: cyclodextrins;    imidazolium salt;    ionic liquid;    polyrotaxanes;    polysiloxanes;   

DOI  :  10.3762/bjoc.8.184

来源: DOAJ

【 摘 要 】

An ionic liquid based on polydimethylsiloxane with imidazolium salt brushes was synthesized as a good solvent for β-cyclodextrin-polydimethylsiloxane rotaxane. As expected the PDMS-Im/Br ionic liquid had a liquid-like non-Newtonian behavior with rheological parameters dependent on frequency and temperature. The addition of rotaxane to the ionic liquid strengthened the non-Newtonian character of the sample and a type of stable liquid-like network was formed due to the contribution of weak ionic interactions. The structure is stable in the 20 to 80 °C domain as proved by the oscillatory and rotational rheological tests.

【 授权许可】

Unknown