title: Porous siloxane-organic hybrid with ultrahigh surface area through simultaneous polymerization-destruction of functionalized cubic siloxane cages.
abstract: A novel hierarchically porous, hyper-cross-linked siloxane-organic hybrid (PSN-5) has been synthesized by Friedel-Crafts self-condensation of benzyl chloride-terminated double-four-ring cubic siloxane cages as a singular molecular precursor. Simultaneous polymerization of the organic functional groups and destruction of the siloxane cages during synthesis yielded PSN-5, which has an ultrahigh BET surface area (∼2500 m(2) g(-1)) and large pore volume (∼3.3 cm(3) g(-1)) that to our knowledge are the highest values reported for siloxane-based materials. PSN-5 also shows a high H(2) uptake of 1.25 wt % at 77 K and 760 Torr.
authors.affiliation: Department of Chemical System Engineering, The University of Tokyo, Japan. watcharop@chbe.gatech.edu
authors.forename: Watcharop
authors.initials: W
authors.lastname: Chaikittisilp
authors.forename: Masaru
authors.initials: M
authors.lastname: Kubo
authors.forename: Takahiko
authors.initials: T
authors.lastname: Moteki
authors.forename: Ayae
authors.initials: A
authors.lastname: Sugawara-Narutaki
authors.forename: Atsushi
authors.initials: A
authors.lastname: Shimojima
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Okubo