I used a one-step photoinitiated co-polymerization to prepare ionic gels. The gel of fixed thickness was prepared by separating two glass sheets with silica gel spacers. The whole curing process can be completed in about 2 minutes, but the gel is in the form of white powder and has no mechanical properties. It was also found that when the thickness was increased, the properties of the gel could be gradually revealed and the mechanical properties were enhanced. I would like to know if it is necessary to isolate oxygen into the experiment (e.g. in a glove box) and if the white powder appearance is caused by the light intensity.
(365 nm UV light as the light source, light distance 10 cm, optical power density 50 mW/cm2)
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