摘要
用一种超临界CO2流体反溶剂的方法,将水溶性高分子聚乙二醇(PEG)成功地沉积在氧化石墨(GO)的表面,通过傅立叶红外光谱、X-射线衍射、扫描电镜测试手段直接和间接地观察PEG在GO上的沉积形式与分布形态,发现PEG沉积在GO的表面以结晶形式呈颗粒状均匀分布在GO的表面,改变了GO的表面化学性质。
The water-soluble polymer PEG was successfully deposited on the surface of the GO through the method of supercritical CO2 anti-solvent,and the sedimentary form and distribution pattern of PEG on the GO were observed by the FTIR,XRD and TEM directly or indirectly.It is found that PEG is deposited on the surface of the GO,on which the PEG is distributed in crystalline particles uniformly,and the surface chemical properties of the GO is changed.
出处
《现代塑料加工应用》
CAS
北大核心
2014年第1期27-29,共3页
Modern Plastics Processing and Applications
基金
国家自然科学基金项目(基金号51373088和51073082)
关键词
聚乙二醇
超临界二氧化碳
氧化石墨
反溶剂法
高分子结晶
polyethylene glycol
supercritical carbon dioxide
graphite oxide
anti-solvent method
polymer crystallization
