Controllable synthesis and characterization of amino-functionalized magnetic nanogels via photopolymerization

GONG Yanbao~1 WANG Chengyun~1 LIU Shunying~1 LUO Shufang~1 HUANG Jin~1 YU Jiahui~1 LIU Shiyuan~2 1

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Controllable synthesis and characterization of amino-functionalized magnetic nanogels via photopolymerization

更新时间：2021-03-12

- Controllable synthesis and characterization of amino-functionalized magnetic nanogels via photopolymerization
- NUCLEAR TECHNIQUES Issue 10, (2008)
- 作者机构：
  
  1. 华东师范大学新药创制先进技术研究院
  2. 第二军医大学附属长征医院医学影像科
- 作者简介：
- 基金信息：
  
  国家自然科学基金(20504010);973计划(2009CB930000);上海市自然科学基金(07ZR14034);上海市纳米专项(0652nm009，0752nm022)资助
- DOI：
  CLC： TB383.1
- Published：01 October 2008
- 稿件说明：
移动端阅览
[1]公彦宝,王成运,刘顺英,罗淑芳,黄进,余家会,刘士远.光聚合一步可控合成表面氨化的核壳型超顺磁性纳米凝胶及其表征[J].核技术,2008(10):751-755.

GONG Yanbao~1 WANG Chengyun~1 LIU Shunying~1 LUO Shufang~1 HUANG Jin~1 YU Jiahui~1 LIU Shiyuan~2 1. Controllable synthesis and characterization of amino-functionalized magnetic nanogels via photopolymerization[J]. Nuclear techniques, 2008, (10): 751-755.
[1]公彦宝,王成运,刘顺英,罗淑芳,黄进,余家会,刘士远.光聚合一步可控合成表面氨化的核壳型超顺磁性纳米凝胶及其表征[J].核技术,2008(10):751-755. DOI：

GONG Yanbao~1 WANG Chengyun~1 LIU Shunying~1 LUO Shufang~1 HUANG Jin~1 YU Jiahui~1 LIU Shiyuan~2 1. Controllable synthesis and characterization of amino-functionalized magnetic nanogels via photopolymerization[J]. Nuclear techniques, 2008, (10): 751-755. DOI：

摘要

用部分还原共沉淀结合离心分离合成超顺磁性Fe

纳米粒子

以其为核

N-（2-氨乙基）甲基丙烯酰胺盐酸盐N-（2-Aminoethyl）methacrylamide

AEM·HCI)为单体

N’-亚甲基双丙烯酰胺（MSA）为交联剂

采用光聚合原位一步合成粒径可控的表面氨化的超顺磁性核壳型Fe

纳米凝胶。探索了单体、交联剂量及光照时间对纳米凝胶粒径的影响

并用动态光散射仪（DLS）、TEM、FTIR、TGA、UV、多功能磁测量仪等表征了纳米凝胶的粒径、粒径分布、形貌、结构、磁响应性及稳定性。结果表明:改变单体、交联剂量及光照时间可得到不同粒径、粒径分布均匀的超顺磁性纳米凝胶;与Fe

纳米粒子相比

纳米凝胶的磁饱和强度略有降低

但其高的Zeta电位使其稳定性大大提高。

Abstract

Core-shell Fe

nanogels with controllable sizes were synthesized under UV irradiation using Fe

nanoparticles as core

N-（2-Aminoethyl）methacrylamide （AEM） as monomer and MBA as cross-linker.The effects of AEM and MBA concentrations and irradiation time on particle sizes of Fe

nanogels were investigated.The particle size

size distribution

morphology

structure and magnetism of the nanogels were characterized by dynamic light scattering

transmission electron microscopy

FTIR

thermogravimmetric analysis

and vibrating sample magnetometer.The results showed that superparamagnetic nanogels with different sizes and narrow size distributions could be synthesized by controlling the irradiation time and concentrations of monomer and cross-linker.Comparing with Fe

nanoparticles

the stability of magnetic nanogels was improved due to their high zeta potential

although their saturation magnetization showed a little tendency to decrease.

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