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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1021/la3023562
|2 doi
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|a pubmed24n0729.xml
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|a (NLM)22712558
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|a DE-627
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|e rakwb
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|a eng
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|a You, Li-Jun
|e verfasserin
|4 aut
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|a Ultrafast hydrothermal synthesis of high quality magnetic core phenol-formaldehyde shell composite microspheres using the microwave method
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 31.12.2012
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|a Date Revised 21.11.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a An ultrafast, facile, and efficient microwave hydrothermal approach was designed to fabricate magnetic Fe(3)O(4)/phenol-formaldehyde (PF) core-shell microspheres for the first time. The structure of the Fe(3)O(4)/PF core-shell microspheres could be well controlled by the in situ polycondensation of phenol and formaldehyde with magnetic Fe(3)O(4) clusters as the seeds in an aqueous solution without any surfactants. The effect of synthetic parameters, such as the feeding amounts of phenol, the dosages of formaldehyde, the reaction temperatures, and the microwave heating time, on the morphologies and sizes of the Fe(3)O(4)/PF microspheres were investigated in details. The phenol-formaldehyde shell is found to be evenly coated on Fe(3)O(4) clusters within 10 min of the irradiation. The as-prepared microspheres were highly uniform in morphology, and the method was found to allow the shell thickness to be finely controlled in the range of 10-200 nm. The properties of the composite microspheres were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermogravimetic analysis (TGA), Fourier transform infrared (FT-IR) spectra, X-ray diffraction (XRD), and vibrating sample magnetometer (VSM). The as-prepared Fe(3)O(4)/PF microspheres were monodisperse and highly dispersible in water, ethanol, N,N-dimethyformamide, and acetone, a beneficial quality for the further functionalization and applications of the Fe(3)O(4)/PF microspheres
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Phenols
|2 NLM
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|a Formaldehyde
|2 NLM
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|a 1HG84L3525
|2 NLM
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|a Ferrosoferric Oxide
|2 NLM
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|a XM0M87F357
|2 NLM
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| 700 |
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|a Xu, Shuai
|e verfasserin
|4 aut
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| 700 |
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|a Ma, Wan-Fu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Dian
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Yu-Ting
|e verfasserin
|4 aut
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| 700 |
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|a Guo, Jia
|e verfasserin
|4 aut
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| 700 |
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|a Hu, Jack J
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Chang-Chun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 28(2012), 28 vom: 17. Juli, Seite 10565-72
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:28
|g year:2012
|g number:28
|g day:17
|g month:07
|g pages:10565-72
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|u http://dx.doi.org/10.1021/la3023562
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