title: Chemically Delaminated Free-Standing Ultrathin Covalent Organic Nanosheets.
abstract: Covalent organic nanosheets (CONs) are a new class of porous thin two-dimensional (2D) nanostructures that can be easily designed and functionalized and could be useful for separation applications. Poor dispersion, layer restacking, and difficult postsynthetic modifications are the major hurdles that need to be overcome to fabricate scalable CON thin films. Herein, we present a unique approach for the chemical exfoliation of an anthracene-based covalent organic framework (COF) to N-hexylmaleimide-functionalized CONs, to yield centimeter-sized free-standing thin films through layer-by-layer CON assembly at the air-water interface. The thin-layer fabrication technique presented here is simple, scalable, and does not require any surfactants or stabilizing agents.
authors.affiliation: Academy of Scientific and Innovative Research (AcSIR), Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India.
authors.forename: M Abdul
authors.initials: MA
authors.lastname: Khayum
authors.affiliation: Academy of Scientific and Innovative Research (AcSIR), Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India.
authors.forename: Sharath
authors.initials: S
authors.lastname: Kandambeth
authors.affiliation: Academy of Scientific and Innovative Research (AcSIR), Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India.
authors.forename: Shouvik
authors.initials: S
authors.lastname: Mitra
authors.affiliation: Academy of Scientific and Innovative Research (AcSIR), Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India.
authors.forename: Sanoop B
authors.initials: SB
authors.lastname: Nair
authors.affiliation: Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India.
authors.forename: Anuja
authors.initials: A
authors.lastname: Das
authors.affiliation: Academy of Scientific and Innovative Research (AcSIR), Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India.
authors.forename: Samadhan S
authors.initials: SS
authors.lastname: Nagane
authors.affiliation: Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India.
authors.forename: Rabibrata
authors.initials: R
authors.lastname: Mukherjee
authors.affiliation: Academy of Scientific and Innovative Research (AcSIR), Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India.
authors.forename: Rahul
authors.initials: R
authors.lastname: Banerjee
keywords: anthracene; covalent organic frameworks; hydrophobic effects; lamellar structures; porous polymers