Estimation of the Generation and the Weight Fraction of Dense Polymer Regions in Heterogeneous Hydrogels
Esra Alveroğlu, Yaşar Yılmaz · Macromolecular Chemistry and Physics · 2011
Abstract The internal structure of polyacrylamide gels consists of polymer‐dense regions with different densities, which are denoted as “blobs”. The density difference between these blobs decreases when a gel is doped with charged molecules. When a small potential is applied between the ends of such a gel, ionic charge carriers result in a current. A theoretical approach is developed to estimate the weight fraction and the number of blob generation. The current decreases with time as a series of exponentially decreasing terms where the exponent and the multiplier of each term measure the density of the blob and the weight fraction of the corresponding blob generation. magnified image