PAN基碳纳米微球的制备及表征  

Synthesis and characterization of PAN-based CNSs

作　　者：周刚[1] 董瑞蛟[1] 张幼维[1] 毛章卓[1] 赵炯心[1] 吴承训[1] 

机构地区：[1]东华大学材料学院纤维改性国家重点实验室,上海201620

出　　处：《合成技术及应用》2008年第3期39-42,共4页Synthetic Technology & Application

基　　金：国家自然科学基金(200604006)资助

摘　　要：通过种子乳液聚合得到聚丙烯腈/聚甲基丙烯酸甲酯(PAN/PMMA)核壳结构的纳米微球。将经冷冻干燥后得到的PAN/PMMA纳米微球进行预氧化和炭化处理,成功制备出粒径为50 nm的碳纳米微球(Carbon Nanospheres,CNSs)。并利用光散射、傅立叶红外线光谱(FTIR)、透射电镜(TEM)等技术对所合成的PAN/PMMA纳米微球和CNSs进行分析。实验结果表明,PMMA的加入有利于降低PAN基CNSs的粒径,且炭化温度在500～600℃之间得到的CNSs的分散性最好。Polyacrylonitrile/polymethylmethacrylate (PAN/PMMA) core-shell nanospheres have been prepared via seed emulsion polymerization.The PAN/PMMA nanospheres by freezen-dried have been stabilized and carbonized then the CNSs with the size of around 50 nm have been successfully prepared.Meanwhile,the PAN/PMMA core-shell nanospheres and CNSs also have been characterized by using light scattering,FTIR and TEM.Judging from our investiga- tion,it is clear that the addition of PMMA is actually apt to reduce the size of...

关 键 词：碳纳米微球 纳米材料 PAN/PMMA核壳结构 

分 类 号：TB383.1[一般工业技术—材料科学与工程]