苯乙烯-N苯基马来酰亚胺共聚物/蒙脱土纳米复合材料的制备与表征  

PREPARATION AND CHARACTERIZATION OF St-NPMI COPOLYMER/MONTMORILLONITE NANOCOMPOSITES

作　　者：王月欣[1] 龙敬伟[1] 张留成[1] 

机构地区：[1]河北工业大学化工学院,天津300130

出　　处：《高分子材料科学与工程》2004年第5期197-199,共3页Polymer Materials Science & Engineering

基　　金：河北省自然科学基金资助项目

摘　　要：分别使用无机蒙脱土和有机蒙脱土用乳液插层的方法制备了苯乙烯-N苯基马来酰亚胺共聚物/蒙脱土纳米复合材料,并用FT-IR、XRD、DSC、TGA对其进行了表征。结果表明,两种蒙脱土在St-NPMI共聚物基体中,均已达到纳米分散,而且复合材料的热稳定性较纯St-NPMI共聚物有很大提高,尤其是有机蒙脱土纳米复合材料,其Tg提高60℃以上。The novel styrene-N-phenylmaleimide copolymer-montmorillonite nanocomposites were prepared by emulsion intercalation copolymerization from Na^+-montmorillonite and montmorillonite modified by cetyltrimethylammonium brumide respectively. For comparative purposes, the copolymerization conditions(such as comonomer feed ratio and the polymerization temperature and times) were set up to be the same. After extracted with hot tetrahydrofuran , the products were characterized by FT-IR, XRD, DSC and TG. The results show that montmorillonite(Na^+-montmorillonite or organomontmorillonite) has been dispersed in the copolymer molecules at nano size and the thermal stability of the product is improved comparing with the pure styrene-N-phenylmaleimide copolymer. The T_g of organomontmorillonite nanocomposite is increased more than 60 ℃ compared to that of pure styrene-nphenylmaleimide copolymer.

关 键 词：乳液插层 苯乙烯-N苯基马来酰亚胺共聚物 蒙脱土 纳米复合材料 耐热改性 傅立叶红外吸收光谱 X射线衍射 玻璃化温度 

分 类 号：TB332[一般工业技术—材料科学与工程]