Mechanical properties of polystyrene/polyamide 6 blends compatibilized with the ionomer poly(styrene‐<i>co</i>‐sodium acrylate)

Villarreal, Maximiliano; Tapia, María Muñoz; Nuño‐Donlucas, S. M.; Puig, J. E.; González‐Núñez, Rubén

doi:10.1002/app.20219

Cited by 22 publications

(17 citation statements)

References 27 publications

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“…Interestingly, the fibrils are much thinner in the fractured surfaces of the blends with Na-AHA modified MWNT possibly due to compatibilization action by Na-AHA in the blends. Such observations were also reported earlier and were addressed to the compatibilization action rendered by polystyrene sodium acrylate in PA6/PS blends [26]. As we could not observe the MWNT in the fractured sample of the blends as such, we tried to look at the morphology by etching out one of the phase for better clarity.…”

Section: Tensile Properties and Fracture Morphologysupporting

confidence: 73%

Influence of multiwall carbon nanotubes on the mechanical properties and unusual crystallization behavior in melt‐mixed co‐continuous blends of polyamide6 and acrylonitrile butadiene styrene

Bose

Bhattacharyya

Häußler

et al. 2009

Polymer Engineering & Sci

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The mechanical and the crystallization behavior of melt-mixed cocontinuous blends of polyamide6 (PA6) and acrylonitrile butadiene styrene were studied in presence of multiwall carbon nanotubes (MWNT). Young's modulus was observed to be significantly improved with increasing concentration of MWNT, while only moderate improvements were observed in the tensile strength. To overcome the van der Waals' forces between MWNT a unique modifier, sodium salt of 6 amino hexanoic acid (Na-AHA) was employed where it was envisaged that specific interactions between Na + of the modifier and the delocalized ''pelectron'' clouds of MWNT would lead to significant debundlling of the tubes. The mechanical properties of the blends with Na-AHA modified MWNT were found to be improved as compared to the blends with purified MWNT however, were found to be adversely affected above certain concentration of Na-AHA in the blends. Dynamic mechanical thermal analysis supported the plasticization effect induced by Na-AHA manifesting in decrease in the glass transition temperature of PA6 in the blends with Na-AHA modified MWNT. Differential scanning calorimetry results showed two crystallization exotherms for PA6 in the blends with both purified and Na-AHA modified MWNT. This unusual crystallization behavior of PA6 was addressed in context to confined crystallization of PA6 in the tube ''network-like'' structure.

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Section: Tensile Properties and Fracture Morphologysupporting

confidence: 73%

Influence of multiwall carbon nanotubes on the mechanical properties and unusual crystallization behavior in melt‐mixed co‐continuous blends of polyamide6 and acrylonitrile butadiene styrene

Bose

Bhattacharyya

Häußler

et al. 2009

Polymer Engineering & Sci

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“…ner, which indicates efficient compatibilization. 31,36 With the addition of GO and GO-NH 2 , ner PEO droplets were observed, which is consistent with the obtained mechanical properties. Similar observations were noted in the blends with maleated PE.…”

Section: Structure-property Correlation In Pe/peo Blends In the Presesupporting

confidence: 93%

Polyolefin based antibacterial membranes derived from PE/PEO blends compatibilized with amine terminated graphene oxide and maleated PE

et al. 2014

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In this study, various strategies like amine terminated GO (GO-NH 2 ), in situ formed polyethylene grafted GO (PE-g-GO) and their combinations with maleated PE (maleic anhydride grafted PE) were adopted to reactively compatibilize blends of low density polyethylene (LDPE) and polyethylene oxide (PEO). These blends were further explored to design porous, antibacterial membranes for separation technology and the flux and the resistance across the membranes were studied systematically. It was observed that GO-NH 2 led to uniform dispersion of PEO in a PE matrix and further resulted in a significant improvement in the mechanical properties of the blends when combined with maleated PE. The efficiency of various compatibilizers was further studied by monitoring the evolution of morphology as a function of the annealing time. It was observed that besides rendering uniform dispersion of PEO in PE and improving the mechanical properties, GO-NH 2 further suppresses the coalescence in the blends. As the melt viscosities of the phases differ significantly, there is a gradient in the morphology as also manifested from scanning acoustic microscopy. Hence, the membranes were designed by systematically reducing the thickness of the as-pressed samples to expose the core as the active area for flux calculations. Selected membranes were also tested for their antibacterial properties by inoculating E. coli culture with the membranes and imaging at different time scales. This study opens new avenues to develop PE based cost effective anti-microbial membranes for water purification.

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“…So far, studies on blends of PA6 and PS are mainly focused on the compatibilizer aimed at improving the compatibility between PA6 and PS. [1][2][3][4][5][6][7] Alternatively, an in-situ polymerization technique is an effective way to control morphologies of polymer blends, mainly from the angle of kinetics of phase separation. As reported in our previous studies, a series of monomercasting polyamide 6 (MCPA6) in-situ composites can be synthesized using e-caprolactam (CL) as reactive solvent.…”

Section: Introductionmentioning

confidence: 99%

Blends of Immiscible Polystyrene/Polyamide 6 via Successive In‐Situ Polymerizations

Pei

Liu

Xie³

et al. 2006

Macro Chemistry & Physics

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Summary: A novel method has been successfully developed to prepare binary blends of PS and MCPA6. The blends are formed by the radical polymerization of styrene in CL, followed by the in‐situ anionic ring‐opening polymerization of CL in the presence of PS. The phase morphology investigated using SEM reveals that PS/MCPA6 blends with a PS content of 10 wt.‐% or lower consists of a MCPA6 matrix and a dispersed PS minor phase. Remarkably, phase inversion occurs in blends that have a PS content of 15 wt.‐% or higher, in which MCPA6 is no longer continuous but finely dispersed in the PS continuous phase. The phase inversion occurs at an extremely low PS content, and this phenomenon is unusual for traditional polymer blends prepared by melt blending. The probable reason for the particular phase morphology development is explained. The stability of the phase morphologies of the PS/MCPA6 blends after annealing at 250 °C is also investigated by SEM.

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Mechanical properties of polystyrene/polyamide 6 blends compatibilized with the ionomer poly(styrene‐co‐sodium acrylate)

Cited by 22 publications

References 27 publications

Influence of multiwall carbon nanotubes on the mechanical properties and unusual crystallization behavior in melt‐mixed co‐continuous blends of polyamide6 and acrylonitrile butadiene styrene

Influence of multiwall carbon nanotubes on the mechanical properties and unusual crystallization behavior in melt‐mixed co‐continuous blends of polyamide6 and acrylonitrile butadiene styrene

Polyolefin based antibacterial membranes derived from PE/PEO blends compatibilized with amine terminated graphene oxide and maleated PE

Blends of Immiscible Polystyrene/Polyamide 6 via Successive In‐Situ Polymerizations

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