| 학회 |
한국화학공학회 |
| 학술대회 |
2010년 봄 (04/22 ~ 04/23, 대구 EXCO) |
| 권호 |
16권 1호, p.77 |
| 발표분야 |
고분자 |
| 제목 |
Synthesis of Biocompatible Polymer/Fe3O4 Magnetic Nanocomposites in Supercritical Carbon Dioxide |
| 초록 |
Poly(2-hydroxyethyl methacrylate)/Fe3O4 magneticnano-composites were synthesized by radical dispersion polymerization in supercritical carbon dioxide (scCO2). Fe3O4 nanoparticles were surface grafted by 3-(trimethoxysilyl) propyl methacrylate (MPS) in order to disperse well in CO2. The silane coupling agent MPS, which provides a reactive C=C bond and can copolymerize with the monomer 2-hydroxyethyl methacrylate (HEMA). Transmission electron microcopy (TEM) measurement indicated that Fe3O4 were well dispersed in the polymer matrix. Thermogravimetric analysis (TGA) showed that the thermal stability of nanocomposites is higher than the neat polymer. The nanocomposites were also confirmed by FT-IR spectroscopy, UV-visibile spectroscopy (UV), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Magnetic property of nanocomposites indicated that the composites are superparamagnetic. This new environmentally benign green synthetic route offers advantages of easy separation and resolves problems related to solvent removal. (Regional Technology Innovation Program (RT104-01-04) of MOCIE) |
| 저자 |
Van Hoa Nguyen, Yuvaraj Haldorai, Quang Long Pham, Tongqiang Zong, 심재진
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| 소속 |
영남대 |
| 키워드 |
HEMA; Dispersion Polymerization; Supercritical Fluid; Magnetic Progerty
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| E-Mail |
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| 원문파일 |
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