Graphene Oxide-Resorcinol-Formaldehyde Composites

Example 2

GO was dispersed in deionized water via ultrasonication for 24 hours keeping the concentration of GO fixed at 1 wt %. Once the GO was dispersed, varying amounts, 1-4 wt % of resorcinol and formaldehyde (RF) were added. For reference 4 wt % RF with 20 wt % PEGDA consisted of: resorcinol (1.235 g, 11.2 mmol), formaldehyde (1.791 g, 22.1 mmol), sodium carbonate catalyst (5.95 mg, 0.056 mmol), and polyethylene glycol diacrylate (PEGDA) with either Mn ˜700 or Mn ˜575 (0.4 g, 280 mmol) were added to 1.5 grams of the GO solution. The resorcinol-to-catalyst ratios (R:C) employed was 200. A range of resorcinol and formaldehyde (RF solids) tested was between 1-4 wt %.