SYNTHESIS AND PROPERTIES OF POLYSTYRENE/LAPONITE NANOCOMPOSITES  

作　　者：侯万国 

机构地区：[1]Key Lab for Colloid and Interface Chemistry of Ministry of Education, Shandong University, Jinan 250100, China

出　　处：《Chinese Journal of Polymer Science》2004年第5期459-462,共4页高分子科学（英文版）

摘　　要：Exfoliated polystyrene (PS)/laponite nanocomposites were prepared successfully. The characteristic d001 diffraction peak of organo-laponite disappeared in the XRD patterns of nanocomposites, indicating that the laponite layers were exfoliated and the ordered crystal structure of laponite was destroyed because of the styrene polymerization. TEM observations showed that the exfoliated laponite primary particles were dispersed randomly in the PS matrix with lateral dimensions from 1 nm to 10 nm. SEM results showed that the PS/laponite nanocomposite particles were almost monodispersed spheres with the size of about 120 nm. Because of the interaction between PS and laponite nanolayers, the nanocomposites exhibited higher thermal stability and glass transition temperature when compared to pure PS.Exfoliated polystyrene (PS)/laponite nanocomposites were prepared successfully. The characteristic d001 diffraction peak of organo-laponite disappeared in the XRD patterns of nanocomposites, indicating that the laponite layers were exfoliated and the ordered crystal structure of laponite was destroyed because of the styrene polymerization. TEM observations showed that the exfoliated laponite primary particles were dispersed randomly in the PS matrix with lateral dimensions from 1 nm to 10 nm. SEM results showed that the PS/laponite nanocomposite particles were almost monodispersed spheres with the size of about 120 nm. Because of the interaction between PS and laponite nanolayers, the nanocomposites exhibited higher thermal stability and glass transition temperature when compared to pure PS.

关 键 词：Polystyrene (PS) LAPONITE NANOCOMPOSITES 

分 类 号：TB383[一般工业技术—材料科学与工程]