Reversed micelle polymerization: a new route for the synthesis of DBSA–polyaniline nanoparticles

Han, Dongxue; Chu, Ying; Yang, Likun; Liu, Yang; Lv, Zhongxian

doi:10.1016/j.colsurfa.2005.02.017

Cited by 157 publications

(72 citation statements)

References 33 publications

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“…Nanoparticles gained and transferred more thermal energy through collision and convection. In this study, DBSA-PANI nanoparticles acted as surfactant and dopant [3]. DBSA modified the surface of nanoparticles and improved the stability of nanofluids [2,7] while water played as another hydrogen bond donor in this case [10,18].…”

Section: Resultsmentioning

confidence: 91%

“…The synthesis was carried out according to report by Han et al [3], with slight modification, DBSA (0.04 moles) was dissolved in isooctane (50 mL) while APS (0.01 moles) was dissolved in deionised water (5.0 mL). The aqueous APS solution was added into DBSA solution to form a homogeneous solution (A) and stirred for 30 minutes.…”

Section: Synthesis Of Dodecylbenzenesulfonic Acid Doped Polyaniline (mentioning

confidence: 99%

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Thermally conductive of nanofluid from surfactant doped polyaniline nanoparticle and deep eutectic ionic liquid

Siong¹,

Daik²,

Hamid³

2014

AIP Conference Proceedings

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Section: Resultsmentioning

confidence: 91%

Section: Synthesis Of Dodecylbenzenesulfonic Acid Doped Polyaniline (mentioning

confidence: 99%

Thermally conductive of nanofluid from surfactant doped polyaniline nanoparticle and deep eutectic ionic liquid

Siong¹,

Daik²,

Hamid³

2014

AIP Conference Proceedings

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“…Estes resultados estão de acordo com os encontrados na literatura [18][19][20][21][22][23] . Observa-se que as principais linhas da PANI-DBSA estão presentes no compósito comprovando a ocorrência da polimerização da PANI.…”

Section: Resultsunclassified

“…O difratograma da BN apresenta característica de um polímero amorfo, com uma banda de espalhamento centrado, em 2 ~18,5°. O difratograma da PANI-DBSA é típico da PANI na forma de pó sintetizada quimicamente [18,19] . Os picos 2 = 5,2; 7,8; 18,8 e 25,2° correspondem no plano hkl (200), (300), (001) e (110), respectivamente.…”

Section: Resultsunclassified

“…Estiramento da ligação C-N da amina secundária (18) 1297 1303 Estiramento C=C do anel quinóide (19) 1559 1565 Deformação angular do CH 2 (23) 1448 1450 Deformação angular simétrica do CH 3 (23) 1375 1375 Deformação axial simétrico da ligação C=C (23) 1662 1664 Deformação axial assimétrica da C-H no CH 3 (23) 2960 2962 Deformação axial simétrico da ligação =C-H (23) 3035 3035 Estiramento O -H (19) 3444 3446 3 00 4 00 500 600 700 8 00 9 00 1000…”

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Compósitos de borracha natural com polianilina

et al. 2007

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Resumo: Compósitos de borracha natural (Hevea brasiliensis)-BN/polianilina -PANI, com diferentes composições foram obtidos através da polimerização por emulsão do monômero anilina na presença da BN e do ácido dodecilbenzeno sulfô-nico (DBSA). Filmes finos e homogêneos foram obtidos por prensagem a quente. Os compósitos foram caracterizados por condutividade elétrica, FTIR, UV-vis-NIR, DSC e difração de raios X. Compósito com condutividade elétrica cerca de 14 ordens de grandeza maior que a BN foi obtido. Este alto valor de condutividade é atribuído à formação da PANI no estado dopado no compósito, que foi verificado através das técnicas de UV-vis-NIR e FTIR. Os resultados obtidos com a técnica de DSC e difratometria de raios X indicaram que os polímeros são imiscíveis e que a presença da borracha não altera significantemente a fase cristalina da PANI-DBSA no compósito.Palavras-chave: Polimerização por emulsão, borracha natural, polianilina. Composites of Natural Rubber with PolyanilineAbstract: In this work composites with different compositions were obtained from natural rubber (Hevea brasiliensis) (NR) and polyaniline (PANI) using the emulsion polymerization of aniline in the presence of NR and dodecylbenzenesulfonic acid (DBSA). The samples in film form were obtained by pressing the precipitate at 100 °C for 5 minutes. The composites were characterized by electrical conductivity, Fourier-transform infrared spectroscopy (FTIR), UV-vis-NIR spectroscopy, differential scanning calorimetry (DSC) and X ray diffraction. Composites with electrical conductivity about 14 orders of magnitude higher than NR were obtained. The UV-vis-NIR and FTIR spectra showed that PANI-DBSA was formed in the composites, thus making it responsible for their high conductivity. The DSC thermograms indicated that the two polymers are immiscible and X ray diffraction evidenced that NB does not considerably affect PANI-DBSA crystalline phase in the composite.Keywords: Emulsion polymerization, natural rubber, polyaniline. IntroduçãoOs polímeros intrinsecamente condutores possuem grande potencial para aplicações tecnológicas, devido principalmente a suas propriedades elétricas e óticas. Dentre esses polímeros condutores, destaca-se a polianilina-PANI devido a sua estabilidade química no estado dopado em condições ambientais e também por ser facilmente sintetizada quimicamente [1] . Entretanto, uma das limitações no uso da polianilina tem sido sua processabilidade apresentando baixa solubilidade e infusibilidade. Dentro deste contexto, blendas e compósitos com polímeros convencionais têm atraído muita atenção, uma vez que estes possibilitam a combinação das excelentes propriedades mecânicas e a alta processabilidade, com a condutividade elétrica da polianilina, aumentando o potencial tecnológico destes materiais. A polimerização via emulsão da anilina na presença de um outro polímero em solução [2][3][4][5] , tem sido uma alternativa viável. A vantagem deste método é que ele fornece uma grande quantidade de material que pode ser processado po...

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Metal Oxide Semiconductors and their Nanocomposites Application Towards Photovoltaic and Photocatalytic

Ameen

Seo

2014

Advanced Energy Materials

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The fabrication of semiconducting materials with controlled size and morphology is an exciting, rapidly expanding research area for realizing the peculiar physical/chemical properties and the possible practical applications at the nano-to-microscale. Also, the technological applications for nanocomposites of organic/inorganic materials are of great interest in scientifi c research due to their unique and tunable electronic and optical properties. The semiconducting materials at nanoscale are widely used for the manufacturing of various electronic, electrical and photovoltaic devices owing to their unique band structure, optical properties, good charge mobility and ability to absorb photons from light. Among various photovoltaic devices, a regenerative photoelctrochemical solar cell called DSSC is a promising photovoltaic device for achieving reasonably high conversion effi ciency as compared to the conventional silicon solar cells. Various metal oxide semiconducting nanomaterials such as ZnO, TiO 2 , SnO 2 , Nb 2 O 5 and CeO 2 -based thin fi lm electrodes and their nanocomposites have also shown comparably good conversion effi ciency of DSSC due to their good optical and electronic properties. These semiconducting metal oxides possess high surface area which is essential for acquiring a high amount of dye

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Reversed micelle polymerization: a new route for the synthesis of DBSA–polyaniline nanoparticles

Cited by 157 publications

References 33 publications

Thermally conductive of nanofluid from surfactant doped polyaniline nanoparticle and deep eutectic ionic liquid

Thermally conductive of nanofluid from surfactant doped polyaniline nanoparticle and deep eutectic ionic liquid

Compósitos de borracha natural com polianilina

Metal Oxide Semiconductors and their Nanocomposites Application Towards Photovoltaic and Photocatalytic

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