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Random‐Graft Polymer‐Directed Synthesis of Inorganic Mesostructures with Ultrathin Frameworks
Author(s) -
Jo Changbum,
Seo Yongbeom,
Cho Kanghee,
Kim Jaeheon,
Shin Hye Sun,
Lee Munhee,
Kim JeongChul,
Kim Sang Ouk,
Lee Jeong Yong,
Ihee Hyotcherl,
Ryoo Ryong
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201310748
Subject(s) - materials science , nanoporous , polymer , crystallization , copolymer , mesoporous material , amphiphile , amorphous solid , nanotechnology , chemical engineering , micelle , nanoscopic scale , self assembly , nanometre , aqueous solution , chemistry , organic chemistry , catalysis , engineering , composite material
Abstract A widely employed route for synthesizing mesostructured materials is the use of surfactant micelles or amphiphilic block copolymers as structure‐directing agents. A versatile synthesis method is described for mesostructured materials composed of ultrathin inorganic frameworks using amorphous linear‐chain polymers functionalized with a random distribution of side groups that can participate in inorganic crystallization. Tight binding of the side groups with inorganic species enforces strain in the polymer backbones, limiting the crystallization to the ultrathin micellar scale. This method is demonstrated for a variety of materials, such as hierarchically nanoporous zeolites, their aluminophosphate analogue, TiO 2 nanosheets of sub‐nanometer thickness, and mesoporous TiO 2 , SnO 2 , and ZrO 2 . This polymer‐directed synthesis is expected to widen our accessibility to unexplored mesostructured materials in a simple and mass‐producible manner.