An increase in oligopyrrole content resulted in decreased pore size, and increased gelation time, swelling ratio, conductivity and degradation time.
A critical limitation in hydrogel design at low solids concentration is the formation of defects, which increase gelation times and swelling, and reduce elasticity.
Results showed that increasing HA concentration, decreased gelation time, increased degradation rate, and reduced changes that were observed over time in mechanics, water retention, and crystallization.
(4) The gel strength of the developed PAAm-g-St/MMT gel system increased, while the gelation time decreased with the increase in temperature, polymer and crosslinker concentrations in the gelant solution.
On the contrary, the salt ions are attracted by the water molecules and intensify the cage-like shielding effect around the CS chains; hence an initial increase in gelation time can be observed.
Over the concentration range studied, it was found that an increase in gelation time at 37°C resulted in lower hydrogel weight equilibrium swelling ratios, which corresponds to less soluble polymer released post-gelation.
Upon ageing turbidity developed in solutions and the viscosity continuously decreased prior to a drastic increased near the gelation time.
The penetration depth of the TS into the TP is found to increase with decreasing gelation time within the investigated operating window.
The adhesion force increased with the gelation time which suggested that the structural evolution of PLLA chains conformation and the chain packing has a direct functional consequence in the nanoscale mechanical property.
With increasing of vinyl contents, gelation time and storage modulus increased, while porosity and swelling ratio decreased.
