Synthesis of novel hierarchical porous polymers with a nanowire-interconnected network structure fro

• 作 者: Yeru Liang Yingbo Ruan Junlong Huang Bo Peng Chen-yang Liu Ruowen Fu Mingqiu Zhang Yongming Chen Dingcai Wu
• 机 构: Materials Science Institute, Key Laboratory for Polymeric Composite & Functional Material of Ministr
• 出 处: Science China(Chemistry)
• 发表日期: 2017年08期
• 关键词: hierarchical polystyrene fabrication methacrylate copolymer spherical interconne

Design and fabrication of the micro/nanostructures of the network units is a critical issue for porous nanonetwork structured materials. Significant progress has been attained in construction of the network units with zero-dimensional spherical shapes.However, owing to the limitations of synthetic methods, construction of porous building blocks in one dimension featuring high aspect ratios for porous nanonetwork structured polymer(PNSP) remains largely unexplored. Here we present the successful design and preparation of PNSP with a novel type of one-dimensional network unit, i.e., microporous heterogeneous nanowire. Well-defined core-shell polymer nanoobjects prepared from a gelable block copolymer, poly(3-(triethoxysilyl)propyl methacrylate)-block-polystyrene are employed as building blocks, and facilely transformed into PNSP via hypercrosslinking of polystyrene shell. The as-prepared PNSP exhibits unique three-dimensional hierarchical nanonetwork morphologies with large surface area. These findings could provide a new avenue for fabrication of unique well-defined PNSP, and thus generate valuable breakthroughs in many applications.

Design and fabrication of the micro / nanostructures of the network units is a critical issue for porous nanonetwork structured materials. Significant progress has been attained in construction of the network units with zero-dimensional spherical shapes.However, owing to the limitations of synthetic methods, construction of porous building blocks in one dimension featuring high aspect ratios for porous nanonetwork structured polymer (PNSP) remains largely unexplored. Here we present the successful design and preparation of PNSP with a novel type of one-dimensional network unit, ie, microporous heterogeneous nanowire Well-defined core-shell polymer nanoobjects prepared from a gelable block copolymer, poly (3- (triethoxysilyl) propyl methacrylate) -block-polystyrene are employed as building blocks, and facilely transformed into PNSP via hypercrosslinking of polystyrene shell. The as- prepared PNSP exhibits unique three-dimensional hierarchical nanonetwork morphologies with large surface area. These findings could provide a new avenue for fabrication of unique well-defined PNSP, and thus generate valuable breakthroughs in many applications.