title: Tenside-free preparation of nanogels with high functional β-cyclodextrin content.
abstract: We present the preparation of ultrafine (R(h), 50 -150 nm) nanogels through tenside-free condensation of reactive prepolymers with β-cyclodextrin (β-CD) in water. These nanogels possess a maximum content of 60 wt % functional β-CD that can form inclusion complexes as demonstrated by dye sorption with phenolphthalein. Aside of this extremely high uptake capacity to hydrophobic molecules, the nanogels also show good adhesion to surfaces in homogeneous distribution with size of R(h) of 25 nm under dry conditions.
authors.affiliation: DWI at RWTH Aachen eV and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Pauwelsstrasse 8, 52056 Aachen, Germany.
authors.forename: Markus J
authors.initials: MJ
authors.lastname: Kettel
authors.forename: Haika
authors.initials: H
authors.lastname: Hildebrandt
authors.forename: Karola
authors.initials: K
authors.lastname: Schaefer
authors.forename: Martin
authors.initials: M
authors.lastname: Moeller
authors.forename: Juergen
authors.initials: J
authors.lastname: Groll
mesh_terms: D004058:Diffusion; D005503:Food Additives / Q000737:chemistry; D005782:Gels / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D053769:Nanocapsules / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D005503:Food Additives; D005782:Gels; D046911:Macromolecular Substances; D053769:Nanocapsules; D013501:Surface-Active Agents; D047392:beta-Cyclodextrins; C031215:betadex