高饱和磁化强度聚苯乙烯纳米粒子的合成与表征  

Synthesis and Characterization of PS Nanoparticles with High Saturation Magnetization

作　　者：王丽聪[1] WANG Licong(Department of Environment and Material Engineering,Jiangyin Polytechnic College,Jiangyin 214405,China)

机构地区：[1]江阴职业技术学院环材系,江苏江阴214405

出　　处：《化工技术与开发》2024年第5期39-41,共3页Technology & Development of Chemical Industry

基　　金：2022年江阴职业技术学院科研创新团队建设项目(XJKYCX2022002)。

摘　　要：以聚乙烯吡咯烷酮(PVP)为乳化剂,苯乙烯和油酸改性的Fe_(3)O_(4)纳米颗粒(NPs)作为油相,采用细乳液聚合方法合成了高饱和磁化强度(Ms)的磁性聚苯乙烯(MPS)纳米粒子(NPs)。采用透射电子显微镜(TEM)、振动样品磁强计(VSM)、原子力显微镜(AFM)和傅里叶变换红外光谱(FT-IR)等手段对样品进行了表征。TEM显示,MPS NPs呈规则球形,Fe_(3)O_(4)NPs接近球的边缘;VSM结果显示,MPS NPs的Ms高达49.04emu·g^(-1);AFM图像显示,MPS NPs表面聚集体的高度为64nm;IR图谱证实了以PVP为乳化剂成功合成了MPS NPs。Magnetic PS(MPS)nanoparticles(NPs)with high saturation magnetization(Ms)were synthesized by miniemulsion polymerization,where polyvinylpyrrolidone(PVP)as an emulsifier,styrene and oleate modified Fe_(3)O_(4)nanoparticles(NPs)dispersed in octane as an oil phase.MPS NPs were characterized with transmission electron microscopy(TEM),vibrating sample magnetometer(VSM),atomic force microscopy(AFM)and Fourier transform infrared spectroscopy(FT-IR).TEM showed that MPS NPs was regularly spherical and the structure were dispersive.The high Ms of MPS NPs was 49.04 emu/g.AFM images showed that the height of aggregates formed on MPS NPs was 64 nm.IR spectrum confirmed the MPS NPs with PVP as emulsifier were successfully synthesized.

关 键 词：磁性纳米粒子 聚苯乙烯 细乳液聚合 饱和磁化强度 

分 类 号：TB383[一般工业技术—材料科学与工程]