Chemically Fueled Volume Phase Transition of Polyacid Microgels

Monodisperse Thermoresponsive Microgels with Tunable Volume-Phase Transition Kinetics

Stimuli-sensitive hydrogel microspheres or microgels are polymeric particles that consist of cross-linked three-dimensional networks. They shrink or swell significantly by expelling or absorbing large amounts of water in response to external stimuli, such as changes in temperature, pH, electric or magnetic fields. The chemical composition of the microgel determines the stimulus that can trigger...

Rheological properties of suspensions of thermo-responsive poly(N-isopropylacrylamide) microgels undergoing volume phase transition

The rheological properties of suspensions of thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) microgels are investigated in the swollen and collapsed states using oscillatory and long-time creep measurements. In the swollen state with repulsive interparticle interaction, the zero shear viscosity and quasi-plateau modulus are solely governed by the effective volume fraction (φeff) and are ...

Supporting information Dielectric relaxations of poly(N-isopropylacrylamide) microgels near volume phase transition temperature: impact of cross- linking density distribution on volume phase transition

Thermoresponsive core-shell microgels with silica nanoparticle cores: size, structure, and volume phase transition of the polymer shell.

Core-shell microgels made of the thermoresponsive polymer poly(N-isopropylacrylamide) (PNIPAM) and silica nanoparticles as inorganic cores were investigated by dynamic light scattering (DLS) and small angle neutron scattering (SANS). In order to study the response of the particles upon changes of temperature, experiments were done in a temperature interval close to the volume phase transition t...

Volume phase transition mechanism of poly[oligo(ethylene glycol)methacrylate] based thermo-responsive microgels with poly(ionic liquid) cross-linkers.

Thermo-dynamic volume phase transition mechanisms of poly[oligo(ethylene glycol)methacrylate] (POEGMA) based microgels with poly(ionic liquid) (PIL) cross-linking moieties are investigated in detail on the basis of temperature-dependent Fourier transform infrared (FTIR) spectroscopy. The original FTIR data are further analysed by two-dimensional correlation spectroscopy (2Dcos) with the perturb...