Flexible conductive polypyrrole nanocomposite membranes based on bacterial cellulose with amphiphobicity

Lian Tang; Jinlu Han; Zhenlin Jiang; Shiyan Chen; Huaping Wang

doi:10.1016/j.carbpol.2014.09.049

Flexible conductive polypyrrole nanocomposite membranes based on bacterial cellulose with amphiphobicity

Carbohydr Polym. 2015 Mar 6:117:230-235. doi: 10.1016/j.carbpol.2014.09.049. Epub 2014 Sep 28.

Authors

Lian Tang¹, Jinlu Han¹, Zhenlin Jiang¹, Shiyan Chen¹, Huaping Wang²

Affiliations

¹ 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.
² 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.

PMID: 25498630
DOI: 10.1016/j.carbpol.2014.09.049

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.

Keywords: Amphiphobicity; Bacterial cellulose; Nanocomposite; Polypyrrole.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Cellulose / chemistry*
Electric Conductivity
Hydrophobic and Hydrophilic Interactions
Membranes, Artificial*
Nanocomposites / chemistry*
Polymers / chemistry*
Pyrroles / chemistry*
Siloxanes / chemistry

Substances

Membranes, Artificial
Polymers
Pyrroles
Siloxanes
polypyrrole
Cellulose