CAJ | 학술논문

在磁性Fe3O4纳米粒子存在下，利用烯烃聚合后过渡金属催化剂α-二亚胺钯在温和条件下催化环戊烯原位聚合，通过聚环戊烯（PCP）在磁性纳米粒子表面原位异相成核结晶，成功获得一系列PCP包覆磁性Fe3O4纳米粒子。分别通过X射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）、热重分析（TGA）、差示扫描量热分析（DSC）、扫描电镜（SEM）和透射电镜（TEM）技术对产物结构进行了表征，结果表明PCP已成功包覆于磁性Fe3O4纳米粒子表面，所得复合型磁性纳米粒子仍具有较好的磁性能。
재자성Fe3O4납미입자존재하，이용희경취합후과도금속최화제α-이아알파재온화조건하최화배무희원위취합，통과취배무희（PCP）재자성납미입자표면원위이상성핵결정，성공획득일계렬PCP포복자성Fe3O4납미입자。분별통과X사선연사（XRD）、부리협변환홍외광보（FT-IR）、열중분석（TGA）、차시소묘량열분석（DSC）、소묘전경（SEM）화투사전경（TEM）기술대산물결구진행료표정，결과표명PCP이성공포복우자성Fe3O4납미입자표면，소득복합형자성납미입자잉구유교호적자성능。
In this paper, polycyclopentene (PCP)- encapsulated Fe3O4 magnetic nanoparticles were successfully synthesized via in situ polymerization of cyclopentene in the presence of Fe3O4 magnetic nanoparticles and subsequent induced heterogeneous nucleation crystallization. Polymerizations of cyclopentene were performed with a late transition metal catalyst, Pd- α- diimine, under milder conditions. The structural characterizations of the resulting PCP- encapsulated Fe3O4 magnetic nanoparticles were carried out by means of a series of techniques including X-ray diffraction (XRD), Fourier-transformed infrared spectra (FT-IR), thermogravimetrical analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It is well confirmed that PCP can be conveniently encapsulated on the surface of Fe3O4 magnetic nanoparticles to render PCP-encapsulated Fe3O4 nanoparticles, which are demonstrated to have well-remained magnetic performance.