The preparation and stability of snake cage membranes

Linear chains of poly(methacrylic acid) have been successfully trapped in different polymeric materices of variable degree of reticulation. The length of the linear chains and the porosity of the cages are the two fundamental parameters which control the stability of the snake cage systems. The physical character of trapping in the membranes which are described in this paper is qualitatively demonstrated. The snake cage effect seems to be a very general principle of insolubilization. By this method, systems with specific exchange or absorption characteristics may be prepared.