Effect of reaction conditions on the size and size distribution of magnetite nanoparticles coated with siloxane
- Authors
- Yoon, KH; Han, CM; Chang, YM
- Issue Date
- Mar-2004
- Publisher
- POLYMER SOC KOREA
- Keywords
- contrast agent; siloxane; superparamagnetic iron oxide; size and size distribution
- Citation
- POLYMER-KOREA, v.28, no.2, pp 170 - 176
- Pages
- 7
- Journal Title
- POLYMER-KOREA
- Volume
- 28
- Number
- 2
- Start Page
- 170
- End Page
- 176
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/27007
- ISSN
- 0379-153X
2234-8077
- Abstract
- The effect of reaction conditions on the size and size distribution of superparamagnetic iron oxide coated with siloxane was big investigated by using dynamic light scattering. The hydrogen bond between the hydroxyl groups on the surface of the magnetite and silanol was confirmed by FT-IR. The size of nanoparticles increased with the reaction temperature, but decreased with monomer contents and agitation speeds. There was not a big difference in size of nanoparticles, prepared by different reaction conditions, but its distribution was in the range of 14 similar to 41 nm. All samples exhibited the superparamagnetic nature. The magnetic susceptibility of the nanoparticles increased with the reaction temperature while it decreased with the monomer content and agitation speed.
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