Synthesis and electrorheological properties of polyaniline/silicon dioxide composites

Yılmaz, Haşim; Zengin, Hüseyin; Ünal, Halíl Íbrahím

doi:10.1007/s10853-012-6413-3

Cited by 38 publications

(17 citation statements)

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“…Amongst the class of conducting polymers, Polyaniline (PAni) is unique due to its easy synthesis, low cost, good thermal stability, and reversible doping/dedoping process to control the conductivity [10,11] . When reaction occurs in acidic environment (low pH condition), leads the head-to-tail coupling of aniline monomers in the para position and green form as a protonated emeraldine, which can be dedoped by oxidizing agent to produce the blue, emeraldine base form of the semi-conducting polymer [12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

Rheological behavior of acrylic paint blends based on polyaniline

et al. 2016

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SbstractThe rheological properties of acrylic paints and polyaniline (PAni) blends, with different contents of PAni doped by dodecyl benzene sulphonic acid (DBSA) and, dispersed by mechanical stirrer and ultrasonic, were investigated by controlled shear rate testing ramps. The results showed that the commercial acrylic paint had tended to deliver the required stability on the blends, in order to avoid sedimentation process. All samples exhibited non-Newtonian flow behavior (shear thinning), increasing PAni content the flow behavior index (n) decreased (0.41 to 0.11) and power law model were used to fitted the experimental curves. The results showed that the addition of PAni-DBSA affects the viscoelastic behavior of the mixtures due to the interactions between the components in the mixture. The best properties were obtained for samples 90/10 wt % dispersed by ultrasonic, indicating the feasibility of the usage as a conducting paint.

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Section: Introductionmentioning

confidence: 99%

Rheological behavior of acrylic paint blends based on polyaniline

et al. 2016

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“…respectively. 18 The π → π * transitions of electrons in benzene ring of doped PANI gave rise to a peak at 352 nm, and the peak at 419 nm showed the transition from polarizated electron to π * electron.…”

Section: Fourier Transform Infrared Analysismentioning

confidence: 97%

A renewable intelligent colorimetric indicator based on polyaniline for detecting freshness of tilapia

Wang

et al. 2017

Packag Technol Sci

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A renewable indicator based on polyaniline (PANI) was developed and was able to indicate the freshness of tilapia. Hydrochloric acid was used in preparation of doped PANI, and experiments on colour variations of PANI films during spoilage of tilapia were conducted under accelerate storage condition (30°C) and chilled condition (4°C). When stored under 30°C, significant colour change of PANI film from green (L * = 70, a * = −37, b * = 24) to peacock blue (L * = 37, a * = −12, b * = −24) was shown when the amount of total volatile basic nitrogen (TVB-N) (19.4 mg/100 g) was about to reach the critical value (20 mg/100 g). Similarly, when the TVB-N reached 20.3 mg/100 g in chilled condition, the colour of PANI film also changed from green (L * = 67, a * = −39, b * = 22) to peacock blue (L * = 35, a * = −13, b * = −20). Importantly, renewed PANI film washed with hydrochloric acid also showed obvious colour variation from green to peacock blue when TVB-N was around the critical value, and it could be recycled for at least 3 times. A proposed design of indicator based on PANI was given to help the consumers identify the freshness of tilapia and ensure that they get safe products.

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“…PANI is a favorable conducting polymer that has been adopted in this ER field http://dx.doi.org/10.1016/j.colsurfa.2015.01.004 0927-7757/© 2015 Elsevier B.V. All rights reserved. because of its easy synthesis, thermal and chemical stability, high sensitivity to an electric field and controlled conductivity using a doping/dedoping process [18][19][20].…”

Section: Introductionmentioning

confidence: 99%