title: Flexible conductive polypyrrole nanocomposite membranes based on bacterial cellulose with amphiphobicity.
abstract: Flexible conductive polypyrrole nanocomposite membranes based on bacterial cellulose (BC) with amphiphobicity have been successfully prepared through in situ chemical synthesis and then infiltrated with polysiloxane solution. The results suggested that polypyrrole (PPy) nanoparticles deposited on the surface of BC formed a continuous core-shell structure by taking along the BC template. After modification with polysiloxane, the surface characteristics of the conductive BC membranes changed from highly hydrophilic to hydrophobic. The AFM images revealed that the roughness of samples after polysiloxane treatment increased along with the increase of pyrrole concentration. The contact angles (CAs) data revealed that the highest water contact angle and highest oil contact angle are 160.3° and 136.7°, respectively. The conductivity of the amphiphobic membranes with excellent flexibility reached 0.32 S/cm and demonstrated a good electromagnetic shielding effectiveness with an SE of 15 dB which could be applied in electromagnetic shielding materials with self-cleaning properties. It opened a new field of potential applications of BC materials.
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance fibers and products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China.
authors.forename: Lian
authors.initials: L
authors.lastname: Tang
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance fibers and products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China.
authors.forename: Jinlu
authors.initials: J
authors.lastname: Han
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance fibers and products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China.
authors.forename: Zhenlin
authors.initials: Z
authors.lastname: Jiang
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance fibers and products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China.
authors.forename: Shiyan
authors.initials: S
authors.lastname: Chen
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of High Performance fibers and products (Ministry of Education), College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China. Electronic address: wanghp@dhu.edu.cn.
authors.forename: Huaping
authors.initials: H
authors.lastname: Wang
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D004553:Electric Conductivity; D057927:Hydrophobic and Hydrophilic Interactions; D008567:Membranes, Artificial; D053761:Nanocomposites / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry*; D012833:Siloxanes / Q000737:chemistry
chemical_list: D008567:Membranes, Artificial; D011108:Polymers; D011758:Pyrroles; D012833:Siloxanes; C067635:polypyrrole; D002482:Cellulose
keywords: Amphiphobicity; Bacterial cellulose; Nanocomposite; Polypyrrole