Phase separation behavior and morphologies of PMMA/poly(styrene‐<i>co</i>‐acrylonitrile)/clay nanocomposites prepared by solution mixing

Lee, Kyung-Hoon; Min, Byong Hun; Kim, Jeong-Ho

doi:10.1002/app.31241

Cited by 7 publications

(2 citation statements)

References 58 publications

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“…26 SAN/PMMA blends show the lower critical solution temperature behavior. [26][27][28][29][30] The phase diagrams of the PMMA/ SAN systems were determined by many methods such as cloud point measurement, laser light scattering and infrared microscopy. 31 Wacharawichanant et al 28 have studied the phase separation of SAN/PMMA blends and found that, from the cloud point temperatures measurements for blends containing SAN copolymers with about 25 wt% of AN, the critical composition should be between 10 and 20 wt% of SAN.…”

Section: Introductionmentioning

confidence: 99%

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Morphology and properties of poly(styrene-co-acrylonitrile)/poly(methyl methacrylate)/zinc oxide composites

Wacharawichanant

Thongbunyoung

Churdchoo

et al. 2013

Journal of Reinforced Plastics and Composites

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The effect of zinc oxide (ZnO) 250 nm on the mechanical, thermal and morphological properties of the composites of poly(styrene-co-acrylonitrile) (SAN), poly(methyl methacrylate) (PMMA) and ZnO was investigated. The Young's modulus of 20SAN/PMMA/ZnO and 40SAN/PMMA/ZnO increased at low ZnO content. Increasing content of ZnO up to 0.5-1.0 wt% increased the impact strength of PMMA/SAN blends and then decreased. The addition of ZnO improved the thermal stability of polymer blends. The dielectric constant of 20SAN/PMMA/ZnO and 40SAN/PMMA/ZnO composites increased with increasing ZnO content. The dispersion of ZnO particles was relatively good and uniform throughout the entire polymer matrix.

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Section: Introductionmentioning

confidence: 99%

“…26 SAN/PMMA blends show the lower critical solution temperature behavior. 26–30 The phase diagrams of the PMMA/SAN systems were determined by many methods such as cloud point measurement, laser light scattering and infrared microscopy. 31 Wacharawichanant et al.…”

Section: Introductionmentioning

confidence: 99%

Morphology and properties of poly(styrene-co-acrylonitrile)/poly(methyl methacrylate)/zinc oxide composites

Wacharawichanant

Thongbunyoung

Churdchoo

et al. 2013

Journal of Reinforced Plastics and Composites

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Effect of poly(oxyalkylene)amines on structure and properties of epoxide nanocomposites

Kelnar

Rotrekl

Kaprálková

et al. 2012

J of Applied Polymer Sci

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A shortcoming of most polymer nanocomposites is relatively low toughness. An effective method to eliminate this is the use of a suitable combination of polymeric impact modifiers with organoclay, which may impart synergistic effects on the mechanical behavior of both thermoplastic and thermoset matrix nanocomposites. This work focuses on the effect of various combinations of amine-terminated (APOP) and hydroxyl-terminated poly(oxypropylene) (POP) and layered silicates on the structure and mechanical behavior of epoxy nanocomposites. The combination of APOP and POP with 0.5À5% wt % of organoclay leads to some compositions that produce well balanced mechanical behavior of the epoxy nanocomposite. The higher toughening effectiveness of APOP/ montmorillonite (MMT) compared with that of POP/ MMT is a consequence of formation of blended domains consisting of clay tactoids and fine APOP inclusions. An increase in the dispersed particle size with clay content was observed to be a consequence of more significant clay-induced nucleation of phase separation at the expense of clay-induced accelerated curing. The best mechanical behavior was observed for materials using an adduct of APOP and MMT, which was obtained using the ion exchange of sodium ions of MMT by protonated APOP. The enhanced mechanical behavior was due to the formation of nanosized planar arrays by self-pilling of elastomer-modified clay and the corresponding increase in the T g of the epoxy. The structure/property relationships of these systems indicate that this type of clay polymer combination provides an effective way of modifying the mechanical behavior of epoxy nanocomposites.

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Effect of amine‐terminated butadiene‐acrylonitrile/clay combinations on the structure and properties of epoxy nanocomposites

Kelnar

Rotrekl

Kaprálková

et al. 2012

J of Applied Polymer Sci

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The effect of the clay content and the method of its combination with amine-terminated butadiene-acrylonitrile (ATBN) on the structure and behavior of epoxy was studied. In the case of the simultaneous addition of both components, the increasing clay content had a very small effect on the size of the reaction-induced phase separationformed particles at 5% rubber content due to predominant elimination of two major clay effects, i.e., the nucleation due to phase separation and the kinetics. As a result, both the time window between the onset of phase separation and vitrification and the viscosity at the cloud point did not change significantly. The minor change in the particle size/clay con-tent dependences with different curing temperatures indicates that the balance between the two clay effects shifted. The corresponding study of the mechanical behavior indicated that the best balanced mechanical properties were obtained at certain clay/ATBN ratios, and thus, there was synergy between the components. Similar mechanical parameters were obtained for the application of both components in the form of ATBN/montmorillonite intercalate.

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Phase separation behavior and morphologies of PMMA/poly(styrene‐co‐acrylonitrile)/clay nanocomposites prepared by solution mixing

Cited by 7 publications

References 58 publications

Morphology and properties of poly(styrene-co-acrylonitrile)/poly(methyl methacrylate)/zinc oxide composites

Morphology and properties of poly(styrene-co-acrylonitrile)/poly(methyl methacrylate)/zinc oxide composites

Effect of poly(oxyalkylene)amines on structure and properties of epoxide nanocomposites

Effect of amine‐terminated butadiene‐acrylonitrile/clay combinations on the structure and properties of epoxy nanocomposites

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