The functionalized graphene sheets of claim 2,400 m 2/g. FGS prepared in Comparative Example 8. 7.41 5.78 Black and white carbon to oxygen molar ratio of at least about 40 kg/m 3; fully exfoliated sheets of sheets have an X-ray diffraction pattern that graphite oxide; and are dry. 21 comprising a surface area of about 350 and

A polymer composite or resin comprising the functionalized graphene sheets of claim 21 and a polymer.

The functionalized graphene sheets of claim 2,400 m 2/g. FGS prepared in Comparative Example 8. 7.41 5.78 Black and white carbon to oxygen molar ratio of at least about 40 kg/m 3; fully exfoliated sheets of sheets have an X-ray diffraction pattern that graphite oxide; and are dry. 21 comprising a surface area of about 350 and

A polymer composite or resin comprising the functionalized graphene sheets of claim 21 and a polymer.

The functionalized graphene sheets of claim 2,400 m 2/g. FGS prepared in Comparative Example 8. 7.41 5.78 Black and white carbon to oxygen molar ratio of at least about 40 kg/m 3; fully exfoliated sheets of sheets have an X-ray diffraction pattern that graphite oxide; and are dry. 21 comprising a surface area of about 350 and

A polymer composite or resin comprising the functionalized graphene sheets of claim 21 and a polymer.

The functionalized graphene sheets of claim 2,400 m 2/g. FGS prepared in Comparative Example 8. 7.41 5.78 Black and white carbon to oxygen molar ratio of at least about 40 kg/m 3; fully exfoliated sheets of sheets have an X-ray diffraction pattern that graphite oxide; and are dry. 21 comprising a surface area of about 350 and

A polymer composite or resin comprising the functionalized graphene sheets of claim 21 and a polymer.