Fig. 1: Construction of heterogeneous and homogeneous structures using the microzone IP reaction and AFM surface images of the PT-1 to PT-5 membranes. | Nature Communications

Fig. 1: Construction of heterogeneous and homogeneous structures using the microzone IP reaction and AFM surface images of the PT-1 to PT-5 membranes.

From: Gas separation with binary-cooperative heterogeneous membranes

Fig. 1: Construction of heterogeneous and homogeneous structures using the microzone IP reaction and AFM surface images of the PT-1 to PT-5 membranes.The alternative text for this image may have been generated using AI.

Diagram of the (a) heterogeneous structure and (b) homogeneous structure of the polyamide membranes. The yellow and blue symbols represent peaks and valleys in the crumpled polyamide membranes with heterogeneous structure, while the purple ones represent the flat polyamide membranes with homogeneous structure. The red and gray rectangles mean C=O and C–N groups, and C = C and C–H groups, respectively. c The change in weight with the residence time of the swollen PDMS layer. AFM surface images from (d1) to (h1) and corresponding AFM-IR phase diagrams from (d2) to (h3). d2–h2 Images were obtained by detecting C=O and C–N groups, whereas (d3–h3) images were obtained by detecting C=C and C–H groups. Scale bar: 200 nm.

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