Structural properties of thermoresponsive poly(N-isopropylacrylamide)-poly(ethyleneglycol) microgels
نویسندگان
چکیده
منابع مشابه
Interaction of gold nanoparticles with thermoresponsive microgels: influence of the cross-linker density on optical properties.
The interaction of spherical gold nanoparticles (Au-NPs) with microgels composed of chemically cross-linked poly-(N-isopropylacrylamide) is reported. Simple mixing of the two components leads to adsorption of the gold particles onto the microgels. Different loading densities can be achieved by varying the ratio of gold particles to microgel particles. The adsorption of gold nanoparticles is ana...
متن کاملRheological 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 ...
متن کاملSustained release of naltrexone from poly(n-isopropylacrylamide) microgels.
The release of the opioid antagonist naltrexone from neutral poly(N-isopropylacrylamide) (PNIPAAM) microgels and negatively charged PNIPAAM microgels containing acrylic acid groups (PNIPAAM-co-PAA) has been studied at various microgel and drug concentrations. The release curves were found to be well represented by the Weibull equation. The release rates were observed to be dependent on the micr...
متن کاملPoly(N-isopropylacrylamide) microgels at the oil-water interface: interfacial properties as a function of temperature.
Highly monodisperse poly(N-isopropylacrylamide), PNiPAM, microgels were prepared by the conventional radical polymerization of NiPAM in the presence of dimethylamino ethyl methacrylate (DMAEMA) monomers at various concentrations. The effect of DMAEMA on the polymerization of PNiPAM microgels was examined at constant initiator (V50) and cross-linker (MBA) concentrations. The presence of DMAEMA i...
متن کاملSwellable elastomers under constraint
Related Articles Dynamical hysteresis in a self-oscillating polymer gel J. Chem. Phys. 137, 064103 (2012) Structural properties of thermoresponsive poly(N-isopropylacrylamide)-poly(ethyleneglycol) microgels J. Chem. Phys. 136, 214903 (2012) Instability analysis of a programmed hydrogel plate under swelling J. Appl. Phys. 109, 063527 (2011) Effect of the concentration on sol–gel transition of te...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2012
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.4723686