Polyacrylamide-coated magnetic nanogels: preparation <italic style="font-style: italic">via</italic> photochemical method and study of coating mechanism

SUN Hanwen; XU Dongmei; MENG Fanzong; WANG Dunqing; HONG Jun; GONG Peijun; XUE Yanling; DONG Li; YAO Side

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Polyacrylamide-coated magnetic nanogels: preparation via photochemical method and study of coating mechanism

更新时间：2023-03-30

- Polyacrylamide-coated magnetic nanogels: preparation via photochemical method and study of coating mechanism
- Journal of Radiation Research and Radiation Processing Vol. 24, Issue 5, Pages: 271-274(2006)
- 作者机构：
  
  1.中国科学院上海应用物理研究所　上海　201800
  2.德州学院　德州　253023
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SUN Hanwen, XU Dongmei, MENG Fanzong, et al. Polyacrylamide-coated magnetic nanogels: preparation via photochemical method and study of coating mechanism. [J]. Journal of Radiation Research and Radiation Processing 24(5):271-274(2006)
DOI：

SUN Hanwen, XU Dongmei, MENG Fanzong, et al. Polyacrylamide-coated magnetic nanogels: preparation via photochemical method and study of coating mechanism. [J]. Journal of Radiation Research and Radiation Processing 24(5):271-274(2006) DOI：

摘要

以丙烯酰胺为单体，N, N’−亚甲基双丙烯酰胺为交联剂，采用光化学方法在水溶液体系中制备了聚丙烯酰胺（Polyacrylamide, PAM）包覆的磁性纳米凝胶，用傅立叶变换红外光谱（Fourier transform infrared spectroscopy, FTIR），光子相关光谱（Photo correlation spectroscopy, PCS）和电子自旋共振（Electron spin resonance, ESR）波谱对聚丙烯酰胺磁性纳米凝胶进行了表征。研究了磁性纳米凝胶粒径随反应时间、单体浓度、交联剂浓度的变化规律，并探索了聚丙烯酰胺磁性纳米凝胶的包覆机理。

Abstract

Polyacrylamide-coated magnetic nanogels were synthesized ,via, photochemical polymerization under UV light irradiation. The polyacrylamide-coated magnetic nanogels were characterized by Fourier transform infrared spectroscopy and photo correlation spectroscopy. And it was found that particle size of the polyacrylamide-coated magnetic nanogels increased with the reaction time and the monomer concentration, but decreased with increasing concentration of the cross-linker of N, N,’,-Methylene-bis-(acrylamide). The coating mechanisms were studied by ESR measurements of different samples of the nanogels.

关键词

聚丙烯酰胺光化学合成磁性纳米凝胶电子自旋共振波谱

Keywords

PolyacrylamidePhotochemical synthesisMagnetic nanogelsElectron spin resonance spectrum

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Polyacrylamide-coated magnetic nanogels: preparation via photochemical method and study of coating mechanism

DOI：

摘要

Abstract

关键词

Keywords

references