標題: Preparation and crystallization behavior of syndiotactic polystyrene-clay nanocomposites
作者: Tseng, CR
Wu, JY
Lee, HY
Chang, FC
應用化學系
Department of Applied Chemistry
關鍵字: syndiotactic polystyrene;clay;nanocomposites;surfactant
公開日期: 1-Dec-2001
摘要: Syndiotactic polystyrene/modified-clay nanocomposites have been prepared by solution blending by mixing pure s-PS and organophilic clay with adsorbed cetyl pyridium chloride (CPC) in dichlorobenzene. The dispersability of the clay in syndiotactic polystyrene/modified-clay nanocomposites was studied using X-ray and transmission electron microscopy. The clay is well dispersed into the s-PS matrix using solution blending with scale in 1-2 nm or in a few tenths similar to 100 nm depending on surfactant treatment. The CPC is partially compatible with s-PS and allows syndiotactic polystyrene chains intercalating into clay layers. The crystallization behavior of alpha- and beta -crystals for syndiotactic polystyrene nanocomposite has been thoroughly examined using the Fourier transform infrared and differential scanning calorimetry. Our results further demonstrate that the presence of the clay plays a vital role in facilitating the formation on the thermodynamically more favorable beta form crystal when the s-PS is melt- or cold-crystallized. (C) 2001 Elsevier Science Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/S0032-3861(01)00568-7
http://hdl.handle.net/11536/29210
ISSN: 0032-3861
DOI: 10.1016/S0032-3861(01)00568-7
期刊: POLYMER
Volume: 42
Issue: 25
起始頁: 10063
結束頁: 10070
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