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

authors	Alonso, E; Faria, M; Mohammadkazemi, F; Resnik, M; Ferreira, A; Cordeiro, N
nationality	International
journal	CARBOHYDRATE POLYMERS
author keywords	Bacterial cellulose; Polyaniline; Blend membrane; Inverse gas chromatography
keywords	IN-SITU; NANOCOMPOSITES; BIOSYNTHESIS; COMPOSITES; POLYMERS
abstract	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 x 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/m(2)). 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.
publisher	ELSEVIER SCI LTD
issn	0144-8617
year published	2018
volume	183
beginning page	254
ending page	262
digital object identifier (doi)	10.1016/j.carbpol.2017.12.025
web of science category	Chemistry, Applied; Chemistry, Organic; Polymer Science
subject category	Chemistry; Polymer Science
unique article identifier	WOS:000423715000027