The invention relates to a photoactivable hybrid organic-inorganic sol-gel resin comprising a) A sol-gel resin obtainable by a method comprising the steps of: a.sub.1) Hydrolyzing at least one sol-gel precursor, said sol-gel precursor comprising: An organic polymerizable moiety (A), and An inorganic polymerizable moiety (B), and a.sub.2) Condensing the obtained hydrolyzed precursor(s); b) Photoactivators comprising: a radical photoinitiator, able to initiate a one-photon polymerization at a first irradiation wavelength (.sub.1), and a photobase, able to initiate a two-photon polymerization at a second irradiation wavelength (.sub.2), said photoactivators being homogeneously dispersed in said sol-gel resin a).

A microporous polymer material that includes reacted units of a triptycene compound and a phenanthroline compound in the form of a contorted polymeric structure. A molar ratio of the triptycene compound to the phenanthroline compound is in a range of 1:1 to 1:4. The triptycene compound is covalently bonded to the phenanthroline compound in the formation of the microporous polymer material.

Polymers based on poly(aryl alkylene) that are capable of crosslinking in a controlled manner are provided. Crosslinked anion exchange membranes or anion exchange ionomers formed from these polymers not only have superior chemical stability and hydroxide conductivity but also have decreased water uptake and improved mechanical stability.