2D Confined‐Space Assisted Growth of Molecular‐Level‐Thick Polypyrrole Sheets with High Conductivity and Transparency. Issue 7 (2nd February 2016)

• Record Type: Journal Article
• Authors: Yang, Yang; Wang, Dong; Wu, Yongjin; Tian, Xiaorui; Qin, Haili; Hu, Liang; Zhang, Ting; Ni, Weihai; Jin, Jian
• Is Part Of: Macromolecular rapid communications. Volume 37:Issue 7(2016)
• Page Start: 590
• Page End: 596
• Publication Date: 2016-02-02
• Subjects: 2D confined reactions -- conducting polymers -- polypyrrole nanosheets -- ultrathin 2D nanomaterials; Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.201500698
• Languages: English
• ISSNs: 1022-1336

Abstract

Abstract : Herein, the use of a 2D soft template system composed of hundred‐nanometer‐thick water/ethanol mixed layers sandwiched by lamellar bilayer membranes of a self‐assembled amphiphilic molecule to produce ultrathin polyprrole (PPy) with a uniform thickness as thin as 3.8 nm and with large dimensions (>2 μm 2 ) is presented. The obtained PPy nanosheets exhibit regioregularity with ordered chain alignment where the polymer chains in the nanosheets produced are well aligned with a clear interchain spacing as confirmed by small‐angle X‐ray scattering measurement. The molecular‐level‐thick PPy nanosheets exhibit extremely high conductivity up to 1330 S m −1, thanks to the ordered alignment of polymer chains in the nanosheets, and a high transparency in both the visible region (transmittance >99%) and near‐infrared region (transmittance >93%). Abstract : A 2D confined‐space assisted growth of ultrathin polypyrrole nanosheets with thickness as thin as 3.8 nm and with large lateral dimensions (>2 μm 2 ) is reported. The obtained PPy nanosheets show regioregularity of ordered chain alignment, which denotes the existence of microcrystalline domains. The PPy nanosheets possess high conductivity and high transparency in both the visible and near‐infrared region.