Synthesis and Characterization of Exfoliated Polystyrene-Layered Double Hydroxide Nanocomposites Via In Situ Polymerization

被引：25
作者：
Botan, Rodrigo [1 ]
Nogueira, Telma R.
Lona, Liliane M. F.
Wypych, Fernando [2 ]
机构：
[1] Univ Estadual Campinas, Dept Proc Quim, Fac Engn Quim, UNICAMP, BR-13083852 Campinas, SP, Brazil
[2] UFPR, Dept Quim, Curitiba, Parana, Brazil
来源：
POLIMEROS-CIENCIA E TECNOLOGIA | 2011年 / 21卷 / 01期
关键词：
Nanocomposite; layered double hydroxide; polystyrene; in situ polymerization; INITIATOR; INTERCALATION; DELAMINATION; ANIONS;
D O I：
10.1590/S0104-14282011005000017
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Exfoliated nanocomposites of polystyrene (PS) and layered double hydroxide (LDH) compound of zinc, aluminium and sodium dodecyl sulfate, as interlayer anion, have been synthesized via in situ polymerization. The effect from the LDH compositions (0.5, 1, 3, 5% weight) was studied. The nanocomposites were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM) and Thermogravimetric Analysis (TGA). The XRD and TEM results showed an exfoliated morphology for the nanocomposites in all compositions. With the 50% weight loss taken as a reference, the TGA results indicated significant improvement in thermal stability for all compositions of the nanocomposites, in comparison to pure polystyrene. This is promising for the application of these new materials in many fields of industry and research.
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页码：34 / 38
页数：5
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