Synthesis and characterization of novel γ-induced porous PHEMA–IL composites

A novel porous polymer-ionic liquid composite with poly(2-hydroxyethyl methacrylate) (PHEMA) and 1-butyl-3-methylimidazolium hexafluorophosphate (BMIPF6) has been synthesized by γ-irradiation without heat or chemical initiators. The products can be reversibly converted into organogels. The composites are potential candidates for electrochemical applications. The use of γ-radiation can be a simple and versatile alternative way to obtain these materials.

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► Porous PHEMA–BMIPF6 composites were synthesized by γ-irradiation.
► The variation of HEMA/BMIPF6 molar ratio in the composite properties was studied.
► From 50 to75% v/v of BMIPF6 the IL has a porogenic role.
► The products can be reversibly converted into organogels.
► Composite materials are promising candidates for electrochemical applications.