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Nanoscopic network structure of N-isopropylacrylamide (NIPAM) gel cross-linked with N,N′-methelenbisacrylamide (BIS) was replicated in sol–gel derived silica matrix. As a result of that, the silica became a nanoporous solid with a high-porosity, which reaches 60–80%. The porosity was totally due to mesopores whose size was within 10nm. Electron microscope observation revealed that the nanoscale network...
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