Copolymers hybrid organic/inorganic

Figure 2 Evolution of the neutron scattering intensities with time. Only spherical micelles of P123 block copolymer are present in the synthesis mixture within the first few minutes of the reaction (300 s), during the hydrolysis of the silica precursor. Then, hybrid organic-inorganic cylindrical micelles are detected (300-1400 s). The SBA-15 hexagonal phase is formed when the precipitation occurs, after 1400 s.

Moreover, hybrid organic-inorganic copolymers could be synthesized from many other metal oxide gels (rare earth, aluminum and others). 

Fig. 1. Hybrid organic-inorganic polymer systems can be devised for all structural paradigms of polymer chemistry including (a) homopolymer, (b) block copolymer, (c) copolymer, (d) graft copolymer, and (e) interpenetrating polymer networks, including, shown as geometrical abstractions, (f) true and (g) semi-interpenetrating versions, where crosslinks are depicted as junctions of horizontal and vertical lines.

Block-Copolymers, Nanocomposites, Organic/Inorganic Hybrids, Polymethylenes... 

Constable GS, Lesser AJ, Coughlin EB (2004) Morphological and mechanical evaluation of hybrid organic-inorganic thermoset copolymers of dicyclopentadiene and mono- or tris (norbomenyl)-substituted polyhedral oligomeric silsesquioxanes. Macromolecules 37(4) 1276-1282. doi 10.1021/ma034989w... 

With fluorosulfonate ionomers other than Nation, the specifications for the GDL has to be changed. More recently, Nishikawa et al. [79] developed GDLs for novel organic-inorganic hybrid electrolytes. They mixed Triton and PTFE dispersions with carbon black and coated the mixture on to carbon paper that had been wet-proofed with FEP copolymer. A nanohybrid electrolyte was prepared by a sol-gel method and formed over the GDL. Addition of uncatalyzed carbon black to the cathode GDL was found to enhance the performance at high current densities. 

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