Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710129, China.
J Colloid Interface Sci. 2012 May 15;374(1):339-44. doi: 10.1016/j.jcis.2012.02.015. Epub 2012 Feb 17.
One-dimensional (1D) magnetic Fe(3)O(4)/P(GMA-DVB) peapod-like nanochains have been successfully synthesized by magnetic-field-induced precipitation polymerization using Fe(3)O(4) as building blocks and P(GMA-DVB) as linker. The Fe(3)O(4) microspheres without surface modification can be arranged with the direction of the external magnetic field in a line via the dipolar interaction between Fe(3)O(4) microspheres and linked permanently via P(GMA-DVB) coating during precipitation polymerization. The length of peapod-like nanochains can be controlled by magnetic field intensity, and the thickness of polymer shell can be tuned by the amount of monomers. Magnetic measurement revealed that these 1D peapod-like nanochains showed highly magnetic sensitivity. In the presence of magnetic field, 1D magnetic Fe(3)O(4)/P(GMA-DVB) peapod-like nanochains can be oriented and aligned along the direction of external magnetic field.
一维（1D）磁性 Fe(3)O(4)/P(GMA-DVB) 豆荚状纳米链已通过磁场诱导沉淀聚合成功合成，其中 Fe(3)O(4) 用作构建块，P(GMA-DVB) 用作连接剂。未经过表面改性的 Fe(3)O(4) 微球可以通过 Fe(3)O(4) 微球之间的偶极相互作用在线性排列，并且在沉淀聚合过程中通过 P(GMA-DVB) 涂层永久连接。豆荚状纳米链的长度可以通过磁场强度控制，聚合物壳的厚度可以通过单体的量进行调节。磁测量表明，这些 1D 豆荚状纳米链具有很高的磁敏感性。在磁场存在的情况下，1D 磁性 Fe(3)O(4)/P(GMA-DVB) 豆荚状纳米链可以沿着外磁场的方向取向和对齐。
