1.The swelling kinetics was discussed, and the effects of the reaction conditions, including the amounts of starch, monomers, initiator and crosslinker, on theequilibrium swelling ratioof the hydrogels were investigated.以硝酸铈铵(CAN)为引发剂、N,N′_亚甲基双丙烯酰胺(BIS)为交联剂,在水溶液中合成...
Additionally, the replacement of BIS by the novel octafunctional crosslinker glyoxal bis(diallylacetal) (GLY) yielded an increase in the swelling ratio.doi:10.1016/S0032-3861(02)00133-7Wei XueIan W HamleyElsevier BVPolymerXue W., Hamley I.W., Thermoreversible swelling behaviour of hydrogels ...
The conductance method is to measure the conductivity change of sodium chloride in the tested solution during the swelling process based on the assumption that the hydrogels do not absorb sodium chloride until their swelling ratio reaches a certain value. However, the sodium chloride can also be ...
Although the equilibrium swelling ratio of the hydrogels with low concentrations of itaconic acid was almost not affected by changes in the temperature, the equilibrium swelling ratio of the hydrogels with high concentrations of itaconic acid increased in the temperature range of 20–50°C. © ...
Whey protein-based hydrogels that can be used as a carrier of biologically active substances (e.g., pharmaceuticals) were prepared from whey protein concentrate (WPC). The WPC hydrogels exhibited a pH-sensitive swelling behavior. The equilibrium swelling ratio was relatively low at acidic pH and ...
5) equilibrium swelling ratio 平衡溶胀比 1. The swelling kinetics was discussed, and the effects of the reaction conditions, including the amounts of starch, monomers, initiator and crosslinker, on theequilibrium swelling ratioof the hydrogels were investigated. ...
Each sorption curve can then be described by a combination of a mutual diffusion coefficient and a surface relaxation rate. The sigmoidicity of the sorption curves is accordingly determined by the ratio of a characteristic diffusion time to a characteristic surface relaxation time. More classical, ...
Even with the swelling ratio increasing to 75%, the SSH could retain its initial mechanical strength. However, a typical swelling-weakening phenomenon was observed for the control hydrogels. The compressive moduli of both the corresponding PAM single-network and PAM/PEG double-network hydrogels ...
HuaLi, inThe Mechanics of Hydrogels, 2022 10.2.9Kinetic swelling ratio A kineticswelling ratioSR(t)is defined as the following volume ratio of the hydrogel with timet, (10.34)SR(t)=VtV0 whereVtandV0are the volumes of the hydrogel at timetand dry state, respectively. If the hydrogel is ...
and flotation experiments together with swelling ratio studies reveal that the polymeric network of cryogel produced by the two-step polymerisation method is characterised by an open structure with more pores and higher swelling ratio but lower mechanical strength compared to the conventional hydrogels. ...