Block copolymer/inorganic hybrid

As described previously, nanostmctured block copolymer-inorganic hybrid materials have considerable potential for applications in areas ranging from microelectronics to energy... 

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.

As described in Sect. 7.1, novel hybrid block copolymers comprising on one hand a classical synthetic polymer and on the other hand a metal-containing polymer, a synthetic or natural (proteine, enzyme, etc.) polypeptide have recently been synthesized. Other hybrid block copolymers containing inorganic blocks, dendrimers, etc. will certainly be prepared and thoroughly investigated in the next few years. 

Figure 5.10 Diverse applications using hydrogen bonding interactions employed by Rotello and coworkers (Arumugam et al. 2007) (a) self-assembled dendronized polymer and (b) inorganic-organic hybrid material using barbiturate functionalized nanoparticles and Hamilton wedge functionalized block copolymers.

The subsequent section Biomimetic Chemistry presents hybrid solids that were developed according to signaling and recognition processes established in nature (Chapters 19 and 20 by Rurack et al. and Collinson) and concludes with Chapter 21 by Kamperman and Wiesner, who show how nature s strategy of combining biomacromolecules and inorganic skeletons can be transferred to block copolymers... 

Perfluoroalkyl groups are also introduced into block copolymers with methacrylates, acrylates, and styrene (B-46 to B-53), which can be synthesized in scCC>2 or in the bulk.95,315 Amphiphilic block copolymers based on glycopolymer segments (B-54 and B-55) are synthesized by copper-catalyzed polymerizations.321,322 Comonomers with a polyhedral oligomeric silsesquioxane unit afforded hybrid polymers between organic and inorganic components (B-56 and B-57).326... 

In this review, nanoporous dielectric materials have been presented. The preparation techniques, methods of pore generation, and materials classification were discussed. Inorganic, organic, and hybrid films were also discussed. The nanoporous dielectric films were classified by preparation method, which includes block copolymer, solvent as porogen approach, surfactant templating, and sol-gel approach. This is still a very active field of research because no one film has satisfied all the stringent requirements in semiconductor device processing. 

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