Carboxylate clays: A model study for polypropylene/clay nanocomposites

Rousseaux, Dimitri; Sclavons, Michel; Godard, Pierre; Marchand‐Brynaert, Jacqueline

doi:10.1016/j.polymdegradstab.2010.04.006

Cited by 22 publications

(14 citation statements)

References 32 publications

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“…The PP/CNa composites prepared with NaAc.3H 2 O show an increase of their clay basal spacing from 1.24 nm (7.1° 2 θ ) to 2.01 nm (4.4° 2 θ ), whatever the compatibilizer employed (PPP2N/A, PPP4N/A, PPL4N/A, and PPH4N/A). This increase is attributed to NaAc intercalation between the clay interlayer .…”

Section: Resultsmentioning

confidence: 96%

“…The PP‐ g ‐MA used as compatibilizer is a commercial one (Plb) of low‐MA content (0.4 wt%). The amount of NaAc.3H 2 O is crucial as mentioned in a previous work . NaAc.3H 2 O is consumed to intercalate CNa and to (partially) neutralize PP‐ g ‐MA into ionomer; 2 and 4 wt% NaAc were considered.…”

Section: Resultsmentioning

confidence: 99%

“…With the aim of avoiding the use of expensive organoclays, we have previously examined the addition of trihydrate sodium acetate (NaAc.3H 2 O) in the melt‐compounding process for PP‐ g ‐MA/unmodified clay nanocomposites preparation . NaAc.3H 2 O neutralizes the maleic anhydride functions of PP‐ g ‐MA to produce in situ PP‐g‐MA ionomer and simultaneously intercalates the unmodified clay .…”

Section: Introductionmentioning

confidence: 99%

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Polypropylene/clay nanocomposites: An innovative one-pot process

et al. 2014

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This work discloses a novel one-pot preparation method of polypropylene (PP)/clay nanocomposites with high degree of clay delamination and improved thermal, mechanical and rheological properties. The in situ simultaneous synthesis of carboxylate clay from native clay and ionomer of PP-graft maleic anhydride (PP-g-MA) through trihydrate sodium acetate addition, combined with water injection in the extrusion process, appears to be a valuable alternative to the use of organoclay for producing PP/PP-g-MA/clay nanocomposites. The influence of PP-g-MA graft content, and of its ionomer form, onto the clay dispersion has been especially investigated. PP-g-MA of low graft content is compared to a home-made highly grafted PP-g-MA synthesized in the presence of N-bromosuccinimide (NBS). The nanocomposites prepared by combining the use of NBS-mediated PP-g-MA, trihydrate sodium acetate and water injection exhibit the highest clay dispersion. Thermal, rheological, and mechanical properties of the nanocomposites have been measured. POLYM. COMPOS., 36:644-650, 2015.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polypropylene/clay nanocomposites: An innovative one-pot process

et al. 2014

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“…The relationship between a clay nanocomposite's thermal stability and the optimal dispersion of the clay layers within the polymer matrix is previously known (Rousseaux et al, 2010). The barrier effect attributed by the clay layers, which serves to inhibit the volatilization of the degradation compounds formed upon heating, is greater when the clay layers of a nanocomposite are well-dispersed (Park et al, 2002).…”

Section: Thermal Analysis Of the Modified Swy-2 And Brn And Their Nanmentioning

confidence: 97%

Preparation and characterization of novel clay/PLA nanocomposites

Mansa

Huang

Quintela

et al. 2015

Applied Clay Science

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“…For the Mt, the presence of cations in the interlayer space allows for a distinct method of modification through cation exchange reactions (Morton et al, 2001;Rousseaux et al, 2010). First, the Na + cations are removed in solution, and subsequently, the aminosilane is inserted.…”

Section: Mechanical Propertiesmentioning

confidence: 99%