Synthesis and properties of polyimide–clay hybrid

Yano, Koichiro; Usuki, Arimitsu; Okada, Akane; Kurauchi, Toshio; Kamigaito, Osami

doi:10.1002/pola.1993.080311009

Cited by 1,413 publications

(981 citation statements)

References 10 publications

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“…The retarded relaxation, in turn, reduces the diffusion of small molecules through the nanocomposites. Similar results have been obtained by Gorrasi et al [14] and Yano et al [15]. These authors concluded that while the permeability decreased significantly, the amount of moisture absorbed remained mostly unchanged.…”

Section: Resultssupporting

confidence: 80%

Investigation of water absorption in clay-reinforced polypropylene nanocomposites

Ladhari

Daly

Belhadjsalah

et al. 2010

Polymer Degradation and Stability

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Section: Resultssupporting

confidence: 80%

Investigation of water absorption in clay-reinforced polypropylene nanocomposites

Ladhari

Daly

Belhadjsalah

et al. 2010

Polymer Degradation and Stability

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“…In many cases, a mixture of intercalated and exfoliated structures is obtained, thus single platelets and particles are both present in the material. The best final properties are achieved when the clay mineral platelets are fully exfoliated and well dispersed [9][10][11][12]. In order to have a successful development of CPNs, it is necessary to modify natural clay so that it can be compatible with a chosen polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Al-Pillared-Montmorillonite (AlPMt)/Poly(Methyl Methacrylate)(PMMA) Nanocomposites: The Effects of Solvent Types and Synthesis Methods

Kızılduman

Alkan²,

Doğan

et al. 2017

Advances in Materials Science

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Al-pillared-montmorillonite (AlPMt)/poly(methyl methacrylate)(PMMA) nanocomposites were synthesized via melt blending method (MBM) and solution blending method (SBM). FTIR-ATR spectroscopy proved the interaction of AlPMt with PMMA polymer matrix. The thermogravimetric and differential scanning calorimeter analyses showed that the thermal stability and the glass transition temperature (T g ) of polymer matrix shifted to higher temperatures with increasing AlPMt content. Images showed that AlPMt dispersed at nanometer scale in polymer matrix. Contact angle measurements demonstrated that the hydrophilicity of the PMMA increased with incorporation of AlPMt. However, the thermal stability of clay/polymer nanocomposites (CPNs) was significantly changed with CPN preparation method.

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“…After acid treatment, the purified clay was modified with the dodecyl amine to induce its organophilic character according to the previously reported method [24]. After modification, the clay was washed with hot distilled water to become neutral and dried to have modified clay (MC).…”

Section: Purification and Modification Of Claymentioning

confidence: 99%

Facile Preparation of Biocomposite from Prawn Shell Derived Chitosan and Kaolinite-Rich Locally Available Clay

Biswas

Rashid

Mallik

et al. 2017

International Journal of Polymer Science

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A novel composite material was prepared from prawn shell derived chitosan (CHT) and locally available kaolinite-rich modified Bijoypur clay (MC) using a facile technique in which dilute acetic acid was used as a solvent for dissolving chitosan and composite fabrication whereas distilled water was used for preparing the clay dispersion. Bijoypur clay mainly consists of kaolinite clay mineral and it was modified with the dodecyl amine to make it organophilic. Morphology and properties of the composites (different weight ratio of MC and CHT) have been studied and compared with those of pure CHT and MC. Purification and modification of Bijoypur clay were investigated by X-ray diffraction (XRD), X-ray fluorescence (XRF), and Fourier transformed infrared spectroscopy (FTIR) analyses. The fabrication of CHT-MC composites was confirmed by FTIR analysis. Thermogravimetric analysis (TGA) and differential scanning colorimetry (DSC) were used to investigate the thermal stability of the composites. It was observed that dispersed clay improves the thermal stability and enhances the hardness of the matrix systematically with the increase of clay loading. In this study, a better insolubility in both acidic and alkaline media of the composites is also observed compared to pure chitosan.

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Synthesis and properties of polyimide–clay hybrid

Cited by 1,413 publications

References 10 publications

Investigation of water absorption in clay-reinforced polypropylene nanocomposites

Investigation of water absorption in clay-reinforced polypropylene nanocomposites

Al-Pillared-Montmorillonite (AlPMt)/Poly(Methyl Methacrylate)(PMMA) Nanocomposites: The Effects of Solvent Types and Synthesis Methods

Facile Preparation of Biocomposite from Prawn Shell Derived Chitosan and Kaolinite-Rich Locally Available Clay

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