Journal ArticleDOI
Synthesis and properties of polyimide–clay hybrid
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TLDR
A polyimide hybrid with montmorillonite clay mineral has been synthesized from a dimethylacetamide (DMAC) solution of poly(amic acid) and a DMAC dispersion of montmoroniite intercalated with an ammonium salt of dodecylamine as mentioned in this paper.Abstract:
A polyimide hybrid with montmorillonite clay mineral has been synthesized from a dimethylacetamide (DMAC) solution of poly(amic acid) and a DMAC dispersion of montmorillonite intercalated with an ammonium salt of dodecylamine. Montmorillonite consists of stacked silicate sheets about 2000 A in length, 10 A in thickness. In this hybrid, montmorillonite is dispersed homogeneously into the polyimide matrix and oriented parallel to the film surface. Thanks to this special structure, this hybrid showed excellent gas barrier properties. Only 2 wt % addition of montmorillonite brought permeability coefficients of various gases to values less than half of those of ordinary polyimide. Furthermore, this hybrid had low thermal expansion coefficient. © 1993 John Wiley & Sons, Inc.read more
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Preparation and properties of polyacrylate/clay photocured nanocomposite materials
Yu-Young Wang,Tsung-Eong Hsieh +1 more
TL;DR: A functionalized surfactant, GME-N-C10 containing a CC double bond, was synthesized to modify clays such as montmorillonite (MMT) and mica for the preparation of organic−inorganic composite resins via radical photoinduced polymerization.
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Fracture behavior of nanocomposites based on poly (ethylene-co-methacrylic acid) ionomers
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Copolyester/layered silicate nanocomposites: The effect of the molecular size and molecular structure of the intercalant on the structure and viscoelastic properties of the nanocomposites
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Combined effect of nano-clay and nano-carbon black on properties of NR nanocomposites
TL;DR: In this paper, a two-roll mill was used to add carbon black (N330) to Natural Rubber (NR)/clay/carbon black nanocomposites, filled with 10 phr, 20 phr, and 30 phr of filler (in total).
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NMR and Electrochemical Investigation of the Transport Properties of Methanol and Water in Nafion and Clay-Nanocomposites Membranes for DMFCs
TL;DR: From these analyses it is derived that the addition of clay materials to recast Nafion decreases the ohmic losses at high temperatures extending in this way the operating range of a direct methanol fuel cell.