**7. Conclusions**

Functionalization of graphene layers was performed with a serinol derivative containing a pyrrole ring: 2‐(2,5‐dimethyl‐1H‐pyrrol‐1‐yl)‐1,3‐propanediol, named as serinol pyrrole.

Synthesis of SP was characterized by very high atom economy and yield and thus by a high atom efficiency, close to 90%. A high surface area nanosized graphite was preferentially used as the graphitic substrate, but the reaction with SP was successful with other types of graphite and of sp2 carbon allotropes, such as carbon black and carbon nanotubes.

Reaction was performed by simply mixing SP and the carbon allotrope and giving either mechanical or thermal energy.

SP and the graphitic substrate revealed strong interaction and formed very stable adducts. Such stability could be explained with the π‐π interaction of the aromatic moieties, the pyrrole ring in SP and the C6 rings in the graphene layers. However, experimental indications seem to support the occurring of a chemical reaction between SP and the aromatic layers of the substrate, more exactly a cycloaddition reaction.

By centrifuging water suspensions of HSAG‐SP adducts, stacks of few layers graphene were isolated. The procedure based on the preparation of water suspensions of HSAG‐SP adducts and the subsequent centrifugation appears to be a promising, environmentally friendly method for obtaining layers of graphene.

HSAG‐SP adducts allow to envisage a large variety of applications. They form very stable suspensions in water and polyols. Antistatic coating layers have been already prepared and work for the preparation of polyurethanes is in progress. Very homogeneous dispersion has been obtained for graphene layers in natural rubber matrix.
