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.
出处
《应用化学》
CAS
CSCD
北大核心
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
关键词
聚氧化乙烯
蒙脱土
纳米杂化
杂化材料
熔融法
poly(ethylene oxide),montmorillonite,melt intercalation,nanocomposite hybrid
