Search results for "Water soluble polymers"

showing 2 items of 2 documents

Switchable Supramolecular Crosslinking of Cyclodextrin-Modified Hyperbranched Polyethylenimine via Anthraquinone Dyes

2011

Two anthraquinone dyes, 5,8-di-N-adamantylamino-1,4-dihydroxyanthraquinone (AQ-OH) and 1,4-di-N-adamantylaminoanthraquinone (AQ-H), are synthesized. The combination of AQ-OH and AQ-H with hyperbranched polyethylenimine (PEI) bearing covalently attached β-cyclodextrin spontaneously formed host–guest complexes with hydrodynamic diameters of about 260 nm. Even enlarged structures of the trifunctional AQ-H were observed via DLS. Repeated measurements show that their assembly and disassembly is reversible with a critical point at 26 °C and therefore switchable via temperature. Also superstructures up to 100 μm were detected via TEM, cryo-TEM-, and SEM. Hence, a smart colored network of switchabl…

chemistry.chemical_classificationPolyethyleniminePolymers and PlasticsCyclodextrinOrganic ChemistrySupramolecular chemistryCondensed Matter PhysicsAnthraquinonechemistry.chemical_compoundchemistryCovalent bondOrganic dyePolymer chemistryMaterials ChemistryPhysical and Theoretical ChemistryWater soluble polymersMacromolecular Chemistry and Physics
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Dextran-Based Polycations: Thermodynamic Interaction with Water as Compared With Unsubstituted Dextran, 2 - Flory/Huggins Interaction Parameter

2011

chemistry.chemical_classificationPolymers and PlasticsOrganic ChemistryFlory–Huggins solution theoryCondensed Matter PhysicsPolysaccharidePolyelectrolytechemistry.chemical_compoundDextranchemistryPolymer chemistryMaterials ChemistryPhysical and Theoretical ChemistryWater soluble polymersMacromolecular Chemistry and Physics
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