Polymer grafting on graphene layers by controlled radical polymerization.

Area of Science:

• Materials Science
• Polymer Chemistry
• Nanotechnology

Background:

• Graphene modification with polymers is crucial for advanced materials.
• In situ controlled radical polymerization (CRP) offers precise control over polymer grafting.

Purpose of the Study:

• To review recent advances in preparing polymer-grafted graphene substrates using CRP.
• To assess methods for controlling polymer brush characteristics like density, thickness, and functionality.

Main Methods:

• Grafting from: Polymer chains grow from initiators attached to graphene.
• Grafting through: Graphene derivatives are incorporated into polymer chains.
• Grafting to: Pre-synthesized polymers are attached to graphene.

Main Results:

• CRP techniques allow for controlled molecular weight, thickness, and polydispersity of grafted polymers.
• Selective functionalization of graphene layers is achievable through combined CRP and grafting mechanisms.

Conclusions:

• This review highlights the potential of CRP for creating well-defined polymer-grafted graphene.
• Future work should focus on controlling grafting density, site-selectivity, and brush topology for diverse applications.