熔融法制备聚氧化乙烯/蒙脱土杂化材料及其结晶行为  

Preparation of Poly(ethylene oxide)/Montmorillonite Nanocomposite Hybrids by Melt Intercalation and Crystallization Behavior

作　　者：呼微[1] 李作思 姬相玲[1] 蒋世春[1] 董德文[1] 姜炳政[1] 

机构地区：[1]中国科学院长春应用化学研究所高分子物理开放实验室,长春130022 [2]吉林化学工业公司电石厂

出　　处：《应用化学》2000年第2期177-179,共3页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金! ( 2 95 74181;5 95 73 0 0 1);国家科委攀登预研项目

摘　　要：Poly(ethylene oxide)/montmorillonite nanocopmosite hybrids were prepared by melt intercalation. The X ray diffraction patterns showed that the layered spacing enlarged from 2 52 nm(for pure montmorillonite) to 3.94 nm for hybrid and the diffraction intensity of crystalline PEO was decreased. The DSC results exhibited a great decrease of the PEO/montmorillonite, implying that PEO molecules are easily intercalated into the layered montmorllonite. Thus, the low crystallinity in composite products is caused by the confinement of PEO molecule motion between the montmorillonite layers. The intercalating mechansim between PEO and montmorillonite has been discussed briefly.Poly(ethylene oxide)/montmorillonite nanocopmosite hybrids were prepared by melt intercalation. The X ray diffraction patterns showed that the layered spacing enlarged from 2 52 nm(for pure montmorillonite) to 3.94 nm for hybrid and the diffraction intensity of crystalline PEO was decreased. The DSC results exhibited a great decrease of the PEO/montmorillonite, implying that PEO molecules are easily intercalated into the layered montmorllonite. Thus, the low crystallinity in composite products is caused by the confinement of PEO molecule motion between the montmorillonite layers. The intercalating mechansim between PEO and montmorillonite has been discussed briefly.

关 键 词：聚氧化乙烯 蒙脱土 纳米杂化 杂化材料 熔融法 

分 类 号：O633.11[理学—高分子化学] O613.72[理学—化学]