title: Organized Molecular Interface-Induced Noncrystallizable Polymer Ultrathin Nanosheets with Ordered Chain Alignment.
abstract: The orientation and state of organization of polymer chains play significant roles in determining the final properties and functions of these materials. Unlike most semicrystalline polymers, which have an inherent driving force toward crystallization, the means to control chain packing in noncrystallizable polymers is still restricted and remains a challenge. We report herein a 2D soft template-directed fabrication for ultrathin polyacrylamide nanosheets with a thickness as low as 3.5 nm and large dimensions (>20 μm). More importantly, the polymer chains in the nanosheets produced are well aligned with a clear interchain spacing. The formation of polymer nanosheets with ordered chain alignment was performed in a special solution containing a periodic sandwich structure of lamellar bilayer membranes and water layers that are hundreds of nanometers thick. It functions as a 2D orientation template to align the monomers in an orderly manner along the in-plane direction of the bimolecular membrane via hydrogen bonding.
authors.affiliation: i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech & Nano-Bionics, Chinese Academy of Sciences , Suzhou, Jiangsu 215123, China.|School of Chemistry and Chemical Engineering, Hefei University of Technology , Hefei, Anhui 230009, China.
authors.forename: Haili
authors.initials: H
authors.lastname: Qin
authors.affiliation: i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech & Nano-Bionics, Chinese Academy of Sciences , Suzhou, Jiangsu 215123, China.
authors.forename: Fujin
authors.initials: F
authors.lastname: Li
authors.affiliation: i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech & Nano-Bionics, Chinese Academy of Sciences , Suzhou, Jiangsu 215123, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Wang
authors.affiliation: i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech & Nano-Bionics, Chinese Academy of Sciences , Suzhou, Jiangsu 215123, China.
authors.forename: Hongzhen
authors.initials: H
authors.lastname: Lin
authors.affiliation: i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech & Nano-Bionics, Chinese Academy of Sciences , Suzhou, Jiangsu 215123, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Jin
keywords: 2D orientation template; 2D polymer; bimolecular membrane; chain alignment; ultrathin nanosheet