第 38 卷第 2 期Vol. 38 No. 2
2008 年 4 月Apr 2008

所属栏目:功能材料

聚苯乙烯修饰α-磷酸锆的合成与表征
曾金华,苏胜培 (湖南师范大学 化学化工学院,湖南 长沙 410081)
摘 要:采用十八烷基二甲基叔胺(DMA)与对氯甲基苯乙烯(CMS)合成的季铵盐(DMA-CMS)与α-磷酸锆(α-ZrP)进行阳离子交换反应,合成了具有反应活性的有机修饰磷酸锆(ZrP-DMA-CMS)。再利用本体聚合法,使该有机化处理的磷酸锆与苯乙烯反应,合成了聚苯乙烯修饰的磷酸锆P(St-ZrP-DMA-CMS)。运用FT-IR、TGA 、XRD对所制备的ZrP-DMA-CMS及P(St-ZrP-DMA-CMS)进行了分析。XRD分析表明,DMA-CMS修饰的磷酸锆层间距离由0.8 nm扩大为4.0 nm;聚苯乙烯修饰的磷酸锆,其层间距则由4.0 nm进一步扩大到4.4 nm。TGA分析表明,聚苯乙烯修饰的磷酸锆P(St-ZrP-DMA-CMS)热稳定性比α-ZrP提高了17%。
关键词:α-磷酸锆;聚苯乙烯;本体聚合法
中图分类号:TQ325  文献标识码:A  文章编号:1009-9212(2008)02- 0054-04
Sythesis and Characterization of Polystyryl Modified α-Zirconium Phosphate
ENG Jing-hua,SU Sheng-pei (College of Chemistry & Chemical Engineering,Hunan Normal University,Changsha 410081,China)
Abstract:The reactive organically-modified α-zirconium phosphate had been synthesized by ion exchange of cations in α-zirconium phosphate with a styryl quaternary ammonium salt,which had been obtained from the reaction of N,N-dimethyl octadecylamine with 4-chloromethyl styrene. Then,the polystyryl-modified α-zirconium phosphate had been prepared from the bulk polymerization of styrene with the reactive organically-modified α-ZrP. The reactive organically-modified α-zirconium phosphate(ZrP-DMA-CMS) and the polystyryl-modified α-zirconium phosphate[P(St-ZrP-DMA-CMS)] had been characterized by infrared spectra(IR),thermal gravimetric analysis(TGA)and X-ray diffraction(XRD). XRD results indicated that the layer d-spacing of ZrP-DMA-CMS had been enlarged from 0.8 nm to 4.0 nm,while the layer d-spacing of P(St-ZrP-DMA-CMS) had been enlarged from 4.0 nm to 4.4 nm. TGA analysis indicated the thermal stability of P(St-ZrP-DMA-CMS)was increased by 17% compared with α-ZrP.
Key words:α-zirconium phosphate;polystyrene;bulk polymerization
基金项目:湖南师范大学潇湘学者启动资金资助课题(化050613)。
作者简介:曾金华(1980-),女,湖南永州人,硕士研究生。研究方向:纳米复合材料。(E-mail:zengjinhua120@163.com)
联 系 人:苏胜培,教授,博士生导师,潇湘学者。研究方向:纳米复合材料。(E-mail:sushengpei@gmail.com)
收稿日期:2007-12-28