Engelsberg M, Barros Wilson
Departamento de Física, Universidade Federal de Pernambuco, Cidade Universitária, 50670-901 Recife, Pernambuco, Brazil.
Phys Rev E Stat Nonlin Soft Matter Phys. 2013 Dec;88(6):062602. doi: 10.1103/PhysRevE.88.062602. Epub 2013 Dec 23.
We employ nuclear magnetic resonance microimaging to study the kinetics of a high-swelling ionic polymer gel. This includes the time evolution of the sphere diameter and also the evolution of the swollen-unswollen boundary. The experimental results for spherical ionic polyacrylamide gels are compared with the predictions of a nonlinear poroelastic theory by numerically solving the equations for the evolution.
我们采用核磁共振显微成像技术来研究高溶胀性离子聚合物凝胶的动力学。这包括球体直径随时间的演变以及溶胀 - 未溶胀边界的演变。通过对演化方程进行数值求解,将球形离子聚丙烯酰胺凝胶的实验结果与非线性多孔弹性理论的预测结果进行了比较。