How is graphene composite hydrogel synthesized?

Therefore, the graphene composite hydrogel was always synthesized by the cross-linking of polymer chains driven by various kinds of noncovalent bonds (i.e., hydrogen bonding) , , .

Can graphene oxide be used as a binder?

Because it is a polycation, it can be used as a binder to prepare composite membranes with negatively charged GO. In this article, we prepared GO, reduced graphene oxide (rGO), and graphene oxide/polyacrylamide (GO/PAM) membranes by the vacuum filtration method, which is conducted in aqueous solution without any organic solvents.

Can graphene oxide be used as a gelator?

Gelation behavior Graphene oxide (GO) have plenty of oxygen-containing groups, which can be used as a gelator to prepare composite hydrogel. Polyacrylamide (PAM), a soluble polymer, can be used as a cross-linker to form composite hydrogels with other gelator.

Can graphene be formulated into highly ordered membranes with nanochannels?

Graphene, especially chemically con-verted graphene or graphene oxide (GO), can be formulated into highly ordered membranes with nanochannels by a vacuum filtration method [18, 19]. Grossman et al. theoretically predicted the sep-aration properties of GO membranes.

Does go/polyacrylamide (PAM) interact with a polyacrylamide composite hydrogel?

In this article, GO/polyacrylamide (PAM) composite hydrogel was prepared, in which the PAM acted as the cross-linker and the main driven force was various noncovalent interactions. The effect of the concentration of PAM and GO to the gelation were studied in detail.

Can polyacrylamide be used as a cross-linker to form composite hydrogels?

Polyacrylamide (PAM), a soluble polymer, can be used as a cross-linker to form composite hydrogels with other gelator. In this paper, GO/PAM composite hydrogels were obtained by mixing appropriate amounts of PAM and GO solution in water, and the photo of the sample was shown in Fig. 1.