Authors
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Nagendra, B. ; Das, A. ; Leuteritz, A. ; Gowd, E. B.
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Title
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Structure and crystallization behaviour of syndiotactic polystyrene/layered double hydroxide nanocomposites
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Date
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01.03.2016
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Number
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49283
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Abstract
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Syndiotactic polystyrene (sPS) based polymer nanocomposites have been prepared using surfactant-free layered double hydroxides (SF-LDHs) by a modified solvent mixing method with different loadings of 1, 2.5, 5 and 10 wt%. The nanocomposite preparation process involves a wash treatment of as-prepared SF-LDHs in an appropriate organic solvent followed by gel formation in a non-polar solvent. The gel was directly used to make highly dispersed polymer nanocomposites. The influence of highly dispersed SF-LDH platelets on the crystallization, polymorphism, thermal stability and flame retardancy of sPS was examined. It was shown that SF-LDHs significantly enhance the crystallization rate of sPS and favour the formation of the thermodynamically stable ß form along with the a form of sPS. Moreover, highly dispersed SF-LDHs decrease the heat release rate and total heat release of sPS indicating the enhancement of flame-retardant properties of sPS. In this way, it was found that the dispersed SF-LDH platelets act as a multifunctional nanofiller for sPS. © 2015 Society of Chemical Industry
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Publisher
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Polymer International
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Wikidata
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Citation
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Polymer International 65 (2016) 299-307
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DOI
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https://doi.org/10.1002/pi.5055
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Tags
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layered double hydroxides nanocomposites syndiotactic polystyrene crystallization flame retardancy
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