Poly(3-hexadecylthiophene)/montmorillonite clay nanocomposites: Influence of preparation and type of clay on their structures

Macêdo-Fonsêca, J. C.; Silva, I.S.; Souto-Maior, Rosa Maria

doi:10.1016/j.synthmet.2009.10.008

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…, inset). On treating the clay with BAs the position of the Si–O–Si stretching band in the OC spectrum (curve (A)) shifts from 1009 to 1015 cm −1 for SB‐OC (curve (B)) and to 1022 cm −1 for ADC‐OC (curve (C)). Such positive shifts are due to hydrogen bonding between the Si–O of the clay and the carbonyl groups of ADC or SB .…”

Section: Resultsmentioning

confidence: 99%

Enhancements of clay exfoliation in polymer nanocomposites using a chemical blowing agent

Istrate

Chen

2014

Polymer International

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Section: Resultsmentioning

confidence: 99%

Enhancements of clay exfoliation in polymer nanocomposites using a chemical blowing agent

Istrate

Chen

2014

Polymer International

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“…Palavras-chave: montmorilonita, sais quaternários de amônio, argila organofílica. [17], while the nanocomposites made with organoclays presented structures containing mainly intercalated domains when prepared by the melt-cooled and solvent cast method [13,14,17]. A polythiophene having ammonium moieties in its lateral alkyl chains was used in the construction of organicinorganic superlattices [18], and ammonium quaternary salts derived from thiophene were used as both monomers and induction agents for the formation of mesoporous structures in polythiophenes-silica composites which presented intense fluorescence [19].…”

Section: Introductionmentioning

confidence: 99%

Organo-montimorillonites containing a reactive thiophene group for polythiophenes nanocomposites

et al. 2016

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A sodium montmorillonite clay (Na+MMT) was modified with different contents of a reactive salt derived from thiophene (trimethyl-(2-thiophen-3-yl-ethyl)-ammonium bromide) (TMETA). The thiophene salt in the organoclay (xtioMMT) was oxidatively polymerized in situ, giving rise to montmorillonite clay intercalated with a polythiophene salt (xpoltioMMT). Analysis by Fourier transform infrared spectroscopy shows a difference in organization of the salt inside the clay lamellae, before and after its polymerization. X-ray diffraction indicates that the salts, whether polymeric or not, are arranged as a monolayer for all compositions. Differently to the expected, the thermal stability of the organoclays decreases upon polymerization suggesting degradation of TMETA in the polymerization reaction.

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Clay/Conductive Polymer Nanocomposites

Jlassi

Omastová

Chehimi

2017

Clay-Polymer Nanocomposites

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An excellent review by Sadki et al. [21] summarized the knowledge of mechanisms of pyrrole electropolymerization. The most accepted mechanism is depicted in Fig. 6.2. After electrooxidation of the monomer at anodic potential E pa , radical cations form dimers that lose protons and are further oxidized at lower potential than those of a single monomer. The mechanism continues until formation of the final polymer chain with higher repeat units. The final polymer exhibits one positive charge for each 3e4 pyrrole repeat units. Electropolymerization can be conducted in two ways to prepare clay/PPy films: (i) on a clay-coated electrode, or (ii) in a clay suspension therefore leading to the codeposition of clay and PPy (Fig. 6.3).

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Poly(3-hexadecylthiophene)/montmorillonite clay nanocomposites: Influence of preparation and type of clay on their structures

Cited by 4 publications

References 20 publications

Enhancements of clay exfoliation in polymer nanocomposites using a chemical blowing agent

Enhancements of clay exfoliation in polymer nanocomposites using a chemical blowing agent

Organo-montimorillonites containing a reactive thiophene group for polythiophenes nanocomposites

Clay/Conductive Polymer Nanocomposites

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