Conductive bacterial cellulose-polyaniline blends: Influence of the matrix and synthesis conditions

Alonso, Emanuel; Faria, Marisa; Mohammadkazemi, Faranak; Resnik, Matic; Ferreira, Artur; Cordeiro, Nereida

http://hdl.handle.net/10400.13/3315

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Authors

Alonso, Emanuel

Faria, Marisa

Mohammadkazemi, Faranak

Resnik, Matic

Ferreira, Artur

Cordeiro, Nereida

Abstract(s)

Bacterial cellulose/polyaniline (BC/PANi) blends present a great potential for several applications. The current study evaluates the impact of using different BC matrixes (drained, freeze-dried and regenerated) and different synthesis conditions (in situ and ex situ) to improve the inherent properties of BC, which were monitored through FTIR-ATR, EDX, XRD, SEM, AFM, swelling, contact angle measurement and IGC. The employment of in situ polymerization onto drained BC presented the most conductive membrane (1.4 × 10-1 S/cm). The crystallinity, swelling capacity, surface energy and acid/base behavior of the BC membranes is substantially modified upon PANi incorporation, being dependent on the BC matrix used, being the freeze-dried BC blends the ones with highest crystallinity (up to 54%), swelling capacity (up to 414%) and surface energy (up to 75.0 mJ/m2). Hence, this work evidenced that the final properties of the BC/PANi blends are greatly influenced by both the BC matrixes and synthesis methods employed.

Keywords

Bacterial cellulose Polyaniline Blend membrane Inverse gas chromatography . Faculdade de Ciências Exatas e da Engenharia

URI

http://hdl.handle.net/10400.13/3315

Citation

Alonso, E., Faria, M., Mohammadkazemi, F., Resnik, M., Ferreira, A., & Cordeiro, N. (2018). Conductive bacterial cellulose-polyaniline blends: Influence of the matrix and synthesis conditions. Carbohydrate polymers, 183, 254-262.