ポリ (N, N_-L-リジンジイルテレフタロイル) マイクロカプセル膜内の固定電荷分布

抄録

The fixed-charge distribution within the membrane of poly (N, N_-L-lysinediylterephthaloyl) microcapsules was examined through zeta potential measurements on the microcapsules at varying pH and ionic strengths of the medium. The zeta potential data obtained were analyzed using a membrane model which assumes that the membrane fixed-charges are distributed to a certain depth and the electrolyte ions can penetrate into the charged layer. As a result, it was revealed that the positive fixed-charges arising from the amino groups of the constituent polymers of the microcapsules are distributed uniformly, and that the negative fixed-charges arising from the carboxylic acid groups of the constituent polymers are concentrated on the surface of the membrane.