Synthesis and properties of polystyrene-organoammonium montmorillonite hybrid

Doh, Jae Goo; Cho, Iwhan

doi:10.1007/s002890050395

Cited by 180 publications

(128 citation statements)

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“…Among polymer nanocomposites, those based on polypropylene (PP) and nanoclay have attracted considerable interest [3][4][5][6][7][8][9][10][11][12][13] because PP is one of the most widely used and fastest growing class of thermoplastics, while nanoclay is one of the most widely accepted and effective nanoreinforcements. However, scientists and engineers are faced with several challenges.…”

Section: Introductionmentioning

confidence: 99%

Effect of clay types on the processing and properties of polypropylene nanocomposites

Lei

Hoa

Ton‐That

2006

Composites Science and Technology

127

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The effect of clay chemistries and sources on the processing and properties of the nanocomposites made therefrom has been studied. A number of nanocomposites were prepared using different types of clay by melt processing using a Brabender plasticorder. Various analysis techniques were used to characterize the dispersion and the properties of the nanocomposites, using scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and dynamical mechanical analysis (DMA).

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Section: Introductionmentioning

confidence: 99%

Effect of clay types on the processing and properties of polypropylene nanocomposites

Lei

Hoa

Ton‐That

2006

Composites Science and Technology

127

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“…In situ incorporation is an effective route to obtain polystyrene/clay nanocomposites [1][2][3][4][5][6][7][8][9][10]. Nonetheless, the compatibility between monomer and organoclay is a critical factor in determining the microstructure of nanocomposites obtained through in situ incorporation [1].…”

Section: Introductionmentioning

confidence: 99%

Swelling of organoclays in styrene. Effect on flammability in polystyrene nanocomposites

Timochenco¹,

Grassi²,

Pizzol³

et al. 2010

Express Polym. Lett.

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Abstract. In this work the effect of the compatibility between organoclays and styrene on the flammability of polystyrene/clay nanocomposites obtained through in situ incorporation was investigated. The reactions were carried out by bulk polymerization. The compatibility between organoclays and styrene was inferred from swelling of the organoclay in styrene. The nanocomposites were characterized by X-ray diffraction and Transmission Electron Microscopy. The heat release rate was obtained by Cone Calorimeter and the nanocomposites were tested by UL94 horizontal burn test. Results showed that intercalated and partially exfoliated polystyrene/clay nanocomposites were obtained depending on the swelling behavior of the organoclay in styrene. The nanocomposites submitted to UL94 burning test presented a burning rate faster than the virgin polystyrene (PS), however an increase of the decomposition temperature and an accentuated decrease on the peak of heat release of the nanocomposites were also observed compared to virgin PS. These results indicate that PS/clay nanocomposites, either intercalated or partially exfoliated, reduced the flammability approximately by the same extent, although reduced the ignition resistance of the PS.

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“…Last two methods, especially intercalation of polymers, are the most promising ways to synthesize polymer/intercalant-clay nanocomposites on the base of graft copolymers of maleic anhydride and its analogues as reactive compatibilizers. Although the most promising reaction to great polymer/clay nanocomposites is the in situ polymerization of functional monomers, such as styrene [16,17], N-vinylcarbazole [18], 4-vinyl-pyridine [19], methyl methacrylate [20,21], acrylonitrile [22] and N-n-butylmaleimide [23], as well as synthesis of low-molecular-weight polyamide 6/hydrotalcite intercalated nanocomposites via in situ polymerization [24], whereas the intercalative radical copolymerization of binary or ternary monomer systems in the presence of mineral clay has been scarcely investigated. The polymerization of acrylate [25,26], styrene-4-sulfonate [27], sulfopropyl methacrylate [28] and acrylic acid [29] in the inorganic layered materials have also been investigated as organic/inorganic nanocomposite materials.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of functional copolymer/organo-silicate nanoarchitectures through interlamellar complex-radical (co)terpolymerization

Söylemez¹,

Caylak²,

Rzayev³

2008

Express Polym. Lett.

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Abstract. The functional copolymers, having a combination of rigid/flexible linkages and an ability of complex-formation with interlayered surface of organo-silicate, and their nanocomposites have been synthesized by interlamellar complex-radical (co)terpolymerization of intercalated monomer complexes of maleic anhydride (MA) and itaconic acid (IA) with dimethyl dodecylamine surface modified montmorillonite (organo-MMT) (MA…DMDA-MMT and IA…DMDA-MMT) n-butyl methacrylate (BMA) and/or BMA/styrene monomer mixtures. The results of nanocomposite structure-composition-property relationship studies indicate that interlamellar complex-formation between anhydride/acid units and surface alkyl amine and rigid/flexible linkage balance in polymer chains are important factors providing the effective intercalation/exfoliation of the polymer chains into the silicate galleries, the formation of nanostructural hybrids with higher thermal stability, dynamic mechanical behaviour and well dispersed morphology.

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Synthesis and properties of polystyrene-organoammonium montmorillonite hybrid

Cited by 180 publications

References 1 publication

Effect of clay types on the processing and properties of polypropylene nanocomposites

Effect of clay types on the processing and properties of polypropylene nanocomposites

Swelling of organoclays in styrene. Effect on flammability in polystyrene nanocomposites

Synthesis and characterization of functional copolymer/organo-silicate nanoarchitectures through interlamellar complex-radical (co)terpolymerization

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