Preparation and characterization of polyaniline/chitosan blend film

Thanpitcha, Tuspon; Sirivat, Anuvat; Jamieson, A. M.; Rujiravanit, Ratana

doi:10.1016/j.carbpol.2005.11.026

Cited by 149 publications

(96 citation statements)

References 25 publications

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“…Nevertheless, further addition of nanoclay (up to 3wt%) resulted in reduced TS. These results are similar to those reported by Thanpitcha et al, [26], while preparing film blends incorporating chitosan and chitin.…”

Section: Tensile Strengthsupporting

confidence: 92%

Development and Characterization of Chitosan-Nanoclay Composite Films for Enhanced Gas Barrier and Mechanical Properties

Neves¹

2016

FSN

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Chitosan-nanoclay composite films were investigated in this study, aiming to develop films with enhanced mechanical properties, and high-barrier against gas exchange, foreseeing their application as base material for food packaging. The effect of nanoclay concentration on the Water Vapor Permeability (WVP), Water Vapor Transmission (WVTR), mechanical properties and morphology of surface structure of the composite films were evaluated. Chitosan-based composite films were prepared using a solvent-casting method, also incorporating of bentonite nanoclay in the filmogenic mixture. As for the results obtained, nanoclay concentration greatly affected the WVP of the casted composite films. The lowest WVTR was observed in films consisting of 2wt% chitosan and 3wt% nanoclay. By adding up to 3wt% bentonite nanoclay, the Tensile Strength (TS) of the composite films could be enhanced up to 60%, as comparted to films prepared using 2wt% chitosan alone. Seemingly, the elongation of composite films decreased with increasing nanoclay content. Moreover, the combination of nanoclay 3wt% and chitosan 2wt% resulted in more resistant films (higher TS) and with reduced gas transfer (lower WVP) and Elongation (E). The results suggest that films containing 3% nanoclay not only decreased the WVP by aiding the role of chitosan, but also modified the rheological properties of resulting film. Therefore, the combination of chitosan and nanoclay may lead to the formation of novel composite films with enhanced mechanical properties and selective gas barrier, a promising material for food packaging applications.

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Section: Tensile Strengthsupporting

confidence: 92%

Development and Characterization of Chitosan-Nanoclay Composite Films for Enhanced Gas Barrier and Mechanical Properties

Neves¹

2016

FSN

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“…It is continuously reformed day by day through the modulation of doping or by introducing functionality for making it more attractive for technological applications [6][7]. Recently few works have been reported on the chemical modification of carbohydrate polymer with PANI such as a semi-interpenetrating based chitosan/polyaniline and chitosan-polyaniline copolymers studied under different pH conditions [8][9][10][11]. The produced materials have found specific applications in the area of biosensors [12][13].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of pH switching electrical conducting biopolymer hybrids for sensor applications

Tiwari

2008

J Polym Res

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A novel electrically active, water soluble gum acacia-polyaniline (GA-PANI) hybrid was synthesized using ceric ammonium nitrate as initiator in acidic medium. The representative hybrid material was characterized using UV-visible, FTIR and SEM taking polyaniline as reference. The composition of aniline to gum acacia was tailored to optimize possible cross-linking in side the hybrid. The hybrid material exhibited pH switching electrical conductivity, which was decreased with increasing pH of the material. I-V characteristics and acid-base sensitivity of the hybrid material were extensively investigated in order to find out its electronic behavior during current flow.

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“…Through reaction with a cross-linking agent, chitosan may obtain hydrogel-like properties, which allows it to be used in a wide range of applications such as food packaging, wastewater treatment, and drug delivery systems (Thanpitcha et al 2006;Tuhin et al 2012). There have been numerous studies on chitosan, such as chitosan blended with natural polymer (Garcia et al 2006;Senna et al 2012;Zhai et al 2004), synthetic polymer (Salmah and Azieyanti 2011;Salmah et al , 2012a, and modified chitosan (Ambri et al 2013;Beppu et al 2007;Rutnakornpituk et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Chitosan/Corn Cob Biocomposite Films by Cross-linking with Glutaraldehyde

2013

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Corn cob (CC) was used as a filler in chitosan (CS) biopolymer films. The effect of glutaraldehyde (GLA) as a crosslinking agent was studied in an effort to improve the properties of CS/CC biocomposite films prepared via solvent casting. The tensile strength and elongation at break values decreased, but the modulus of elasticity increased with CC content. However, the tensile properties of CS/CC biocomposite films improved when modified with GLA. The Fourier transform infrared (FTIR) results indicated the presence of imine bonds (C=N) and ethylenic groups due to the cross-linking reaction between CS and GLA. The thermal stability of CS/CC biocomposite films reduced with increasing CC content. The modification of CS/CC with GLA enhanced the thermal stability of the biocomposite films. Moreover, the wettability and adhesion of the CC-CS system were enhanced by modification with GLA, as demonstrated by a morphological study. The crosslinking agent glutaraldehyde positively affected the tensile strength, modulus of elasticity, and thermal stability of the biocomposite films.

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Preparation and characterization of polyaniline/chitosan blend film

Cited by 149 publications

References 25 publications

Development and Characterization of Chitosan-Nanoclay Composite Films for Enhanced Gas Barrier and Mechanical Properties

Development and Characterization of Chitosan-Nanoclay Composite Films for Enhanced Gas Barrier and Mechanical Properties

Synthesis and characterization of pH switching electrical conducting biopolymer hybrids for sensor applications

Chitosan/Corn Cob Biocomposite Films by Cross-linking with Glutaraldehyde

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