Citation: LIU Chun-Yan, GONG Cai-Yun, ZHOU Dong-Xue, WANG Jing, LIU Jia-Shuo, LIU Zhao-Bin. Modified Jeffamine Molecular Tools for Ordered Mesoporous and Super-Micorporous Silica Microsphere Particles[J]. Chinese Journal of Inorganic Chemistry, ;2015, (5): 954-960. doi: 10.11862/CJIC.2015.139 shu

Modified Jeffamine Molecular Tools for Ordered Mesoporous and Super-Micorporous Silica Microsphere Particles

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1 College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, Liaoning 116029, China;
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2 State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning 116024, China;
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3 The High School Attached to Dalian University of Technology, Dalian, Liaoning 116024, China

Corresponding author: LIU Chun-Yan,
Received Date: 29 January 2015
Available Online: 30 March 2015
Fund Project: 国家自然科学基金(No.21306063) (No.21306063)江苏省基础研究计划(No.BK20130123)资助项目。 (No.BK20130123)

Alow toxicity and biodegradable polymetic temlplating route to ordered mesoporous and super-micorporous silica materials is reported. By grafting stearic acid on Jeffamine ED2003 (H₂N-(PO)_l(EO)_m(PO)_n-NH₂, l+n=6, m=39), a polyether amide polymeric surfactant was obtained, which has the ability of self-assembly in aqueous solution, named ED2003-fa-18. Using ED2003-fa-18 as a template, tetraethyl orthosilicate (TEOS) as inorganic silicon source, the ordered mesoporous and super-microporous silica microspheres were hydrothermally synthesized under acidic conditions at mild temperature. The resulting materials were characterized by powder X-ray diffraction (XRD), nitrogen sorption, infrared spectroscopy (IR), 1H NMR, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The influence of the templating concentration on the pore size and morphologies of the resulting materials has been investigated. The results show that the well-ordered mesoporous and super-microporous silica materials have been successfully synthesized. As the templating concentration (from 1wt% to 7wt%) increased, the pore diameter decreased obviously from mesoporous range to supermicroporous range. SEM photographs show that the as-synthesized silica materials were spherical nanoparticles of 20~30 nm, and these nanoparticles further agglomerated and formed a densely packed microspheres of 2~4 μm. In addition, ordered pore structures can be observed by the transmission electron microscopy (TEM).
- Jeffamine polyetheramine;modification;mesoporous silica;super-microporous silica;microsphere
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沈阳化工大学材料科学与工程学院沈阳 110142