TY - JOUR
T1 - Controllable synthesis and characterization of amino-functionalized magnetic nanogels via photopolymerization
AU - Gong, Yanbao
AU - Wang, Chengyun
AU - Liu, Shunying
AU - Luo, Shufang
AU - Huang, Jin
AU - Yu, Jiahui
AU - Liu, Shiyuan
PY - 2008/10
Y1 - 2008/10
N2 - Core-shell Fe3O4 nanogels with controllable sizes were synthesized under UV irradiation using Fe3O4 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 Fe3O4 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 Fe3O4 nanoparticles, the stability of magnetic nanogels was improved due to their high zeta potential, although their saturation magnetization showed a little tendency to decrease.
AB - Core-shell Fe3O4 nanogels with controllable sizes were synthesized under UV irradiation using Fe3O4 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 Fe3O4 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 Fe3O4 nanoparticles, the stability of magnetic nanogels was improved due to their high zeta potential, although their saturation magnetization showed a little tendency to decrease.
KW - Amino-functionalized
KW - Core-shell nanogels
KW - In situ controllable synthesis
KW - Photopolymerization
KW - Superparamagnetic
UR - https://www.scopus.com/pages/publications/55649118522
M3 - 文章
AN - SCOPUS:55649118522
SN - 0253-3219
VL - 31
SP - 751
EP - 755
JO - He Jishu/Nuclear Techniques
JF - He Jishu/Nuclear Techniques
IS - 10
ER -