第 37 卷第 6 期 |  | Vol. 37 No. 6 | 2007 年 12 月 | Dec 2007 |
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所屬欄目:功能材料
雙親性寡聚體聚(苯乙烯-丙烯酸-對氯甲基苯乙烯)季銨鹽修飾蒙脫土的制備與表征 |
陳如意,蘇勝培
(湖南師范大學(xué) 化學(xué)化工學(xué)院,湖南 長(cháng)沙 410081) |
摘 要:利用自由基共聚制得聚(苯乙烯-丙烯酸-對氯甲基苯乙烯)(PSAA)寡聚體,季銨化后與蒙脫土進(jìn)行離子交換得到聚(苯乙烯-丙烯酸-對氯甲基苯乙烯)修飾蒙脫土(PSAA/MMT)。利用紅外、凝膠滲透色譜、熱重、核磁共振和X衍射分析儀對其結構性能進(jìn)行了表征。發(fā)現當寡聚體中丙烯酸含量為5%時(shí),熱穩定性較好。但是在其修飾蒙脫土中,當丙烯酸的含量為10%時(shí),熱穩定性更好,當失重10%時(shí),其熱降解溫度為367℃。X衍射分析和透射電子顯微鏡結果顯示,寡聚體季銨鹽與蒙脫土進(jìn)行離子交換,得到了剝離的有機修飾蒙脫土。 |
關(guān)鍵詞:聚(苯乙烯-丙烯酸-對氯甲基苯乙烯);蒙脫土;GPC;TGA;XRD |
中圖分類(lèi)號:TQ325 文獻標識碼:A 文章編號:1009-9212(2007)06- 0052-04 |
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Synthesis and Characterization of Oligomeric Poly(Styrene-acrylonitrile-p-chloromethylstyrene) Quaternary Ammonium Modified Montmorillonite |
CHEN Ru-yi,SU Sheng-pei
(College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China) |
Abstract:Oligomeric poly(styrene-acrylonitrile-p-chloromethylstyrene)(PSAA) was prepared through free-radical polymerization. And its quarternary ammonium salt was obtained from the reaction of trimethyl amine with the corresponding PSAA. Then the PSAA modified clays were prepared through cationic exchange of the sodium ion in the clay with the corresponding PSAA quarternary ammonium salt. IR,GPC,TGA,1H NMR and XRD were used in the characterization of the above polymers and its modified clay. The experimental data have shown that the ammonium salt has a better thermal stability when the acryl acid content is 5% in the oligomeric,but themodified clay has highest thermal stability when there is 10% of the acryl acid in the amphiphilic oligomeric modifier. And the results of XRD and TEM shows the intercalation montmorillonites with large dspacing were successfully prepared. |
Key words:poly(styrene-acrylonitrile-chloromethylstyrene);montmorillonite;GPC;TGA;XRD |
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基金項目:湖南師范大學(xué)瀟湘學(xué)者啟動(dòng)資金資助課題(化050613)。
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作者簡(jiǎn)介:陳如意(1977-),男,湖南益陽(yáng)人,碩士研究生。研究方向:納米復合材料。(E-mail:ruyichen@gmail.com)
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聯(lián) 系 人:蘇勝培,教授,博士,博士生導師,瀟湘學(xué)者。研究方向:納米復合材料。(E-mail:sushengpei@gmail.com)
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收稿日期:2007-11-02
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