Structured electrically conductive polyaniline/polymer blends

Narkis, M.; Haba, Y.; Segal, Ester; Zilberman, Meital; Titelman, G. I.; Siegmann, A.

doi:10.1002/1099-1581(200008/12)11:8/12<665::aid-pat36>3.0.co;2-v

Cited by 33 publications

(31 citation statements)

References 26 publications

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“…The conductivity behavior of the three PANI-DBSA blends is similar, as was recently reported. 7,18,19 Thus, the crosslinking degree of the PS particles has essentially no effect on the segregation process within the aqueous phase; therefore, the dispersion level of PANI-DBSA within the matrix is retained in a compression-molding process.…”

Section: Xps/pani-dbsa Blendsmentioning

confidence: 99%

“…They emphasized that the key factor in their processing studies was a plasticizer technology developed by Neste Oy. Zilberman et al [5][6][7][8] recently showed that the combined characteristics of a matrix polymer and a given doped PANI (dopant type) determines the resulting morphology and electrical conductivity of such melt-mixed blends. The interaction level between a doped PANI and a matrix polymer determines the significance of PANI dissolution/precipitation processes in the matrix and also the PANI aggregate level of fracturing during the high shear melt-mixing step and thus the resulting dispersion mode within the matrix polymer.…”

Section: Introductionmentioning

confidence: 99%

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On the structure and electrical conductivity of polyaniline/polystyrene blends prepared by an aqueous-dispersion blending method

Segal

Haba

Narkis

et al. 2001

J. Polym. Sci. B Polym. Phys.

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Section: Xps/pani-dbsa Blendsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On the structure and electrical conductivity of polyaniline/polystyrene blends prepared by an aqueous-dispersion blending method

Segal

Haba

Narkis

et al. 2001

J. Polym. Sci. B Polym. Phys.

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“…23 The level of interaction between the PAN and the matrix polymer determines the blend morphology and, thus, its electrical conductivity. In these blends, the major component (functional copolymer) formed the matrix, whereas the minor component (PAN) was the nanolevel dispersed phase.…”

Section: Morphologymentioning

confidence: 99%

“…However, the applicability of such an intrinsically conductive polymer is restricted by its poor processability and mechanical properties. 23 The simplest route to enhance the processability of PAN (without altering its structure) is blending with some conventional polymers. Such types of blends are usually designed to combine the desired properties of both components, that is electrical conductivity of PAN with the processability and physical properties of the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Nanoblends of novel polyesters with polyaniline: Conductivity and heat-stability studies

Kausar

Hussain

2012

High Performance Polymers

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The present work initially deals with the fabrication of a new generation of polyesters (bearing thiophene, azomethine, thiourea and ether moieties) and subsequent blending with polyaniline (PAN) exhibiting extremely valuable nanoblend characteristics. Few poly(azomethine-thiourea-ester)s (PATEs), by the polycondensation of a new diol 4,4 0 -oxydiphenyl bis((E)-1-(4-hydroxobenzylidene)thiourea) with thiophene-2,5-dicarbonyl/terephtaloyl chloride, were synthesized. The polymers obtained were characterized by Fourier-transform infrared, proton-nuclear magnetic resonance, solubility, solution viscosity, gel permeation chromatography, thermogravimetric analysis, differential scanning calorimetry and wide-angle x-ray diffraction. The polymers exhibited high molar mass (77-89 Â 10 3 ) and thermal stability (T 10 528-531 C, glass transition temperature (T g ) 265-268 C). Then the electrically conducting blends, of PAN dispersed in the PATEs matrix, were prepared by mash-blending and melt-blending techniques. Materials obtained by conventional melt-blending approach generated an efficient conductive network compared with those produced by mash blending. Field emission scanning electron microscopy images displayed nanoblend morphology of the melt-blended system, owing to increased physical interactions (hydrogen bonding and p-p stacking) between the two polymers. Moreover, miscible blends of thiophene-based PATE/PAN led to superior conductivity (1.5-2.1 S/cm) and heat stability (T 10 503 C) even at low PAN concentration relative to previous thiophene, azomethine or PAN-based structures.

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“…This stems from a segregation mechanism in which the PANI-DBSA particles "feel" the character of the particle's surface and not the specific polymer and thus segregate accordingly. 12,13 Film forming polymer/PANI blends prepared via the aqueous dispersion method, have a utilization potential in various applications, such as conducting paints, conducting adhesives, and antistatic coatings. The coagulated and dried powdery blends can be used in melt processing procedures.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline/PVAc blends: Variation with time of structure and conductivity of films cast from aqueous dispersions

Segal

Haba

Narkis

et al. 2000

J. Appl. Polym. Sci.

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Recently, a polymerization process of Anilinium‐Dodecyl Benzene Sulfonic Acid (DBSA) complex in an aqueous dispersion was developed in our laboratories. Simple mechanical mixing of the aqueous PANI–DBSA dispersion with a PVAc aqueous latex leads to highly conductive blends at low PANI–DBSA contents. The percolation threshold of the dried films is extremely low (∼0.5 wt %). The combined aqueous PVAc/PANI–DBSA dispersions exhibit a gradually decreasing electrical conductivity accompanied by a gradually increasing viscosity, with the storage time. However, an aged cast film from these blends maintains its electrical conductivity with time. These phenomena are associated with acidic hydrolytic reactions of the ester group, resulting in the formation of vinyl acetate–vinyl alcohol copolymer and evolution of acetic acid, and also the interaction of the DBSA surfactant with the PVAc, causing swelling and disintegration of PVAc particles. A chemical structural model describing these changes with storage time is suggested. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 760–766, 2001

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Structured electrically conductive polyaniline/polymer blends

Cited by 33 publications

References 26 publications

On the structure and electrical conductivity of polyaniline/polystyrene blends prepared by an aqueous-dispersion blending method

On the structure and electrical conductivity of polyaniline/polystyrene blends prepared by an aqueous-dispersion blending method

Nanoblends of novel polyesters with polyaniline: Conductivity and heat-stability studies

Polyaniline/PVAc blends: Variation with time of structure and conductivity of films cast from aqueous dispersions

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