| Fabrication of Dendrimer－like PAMAM Based on Silica Nanoparticles |
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| 引用本文： | 刘鹏,田军,刘维民,薛群基.Fabrication of Dendrimer－like PAMAM Based on Silica Nanoparticles[J].中国化学,2003,21(7):960-963. |
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| 作者姓名： | 刘鹏 田军 刘维民 薛群基 |
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| 作者单位： | [1]DepartmentofChemistry,LanzhouUniversity,Lanzhou,Gansu730000,China；StateKeyLaboratoryofSolidLubrication,LanzhouInstituteofChemicalPhysics,ChineseAcademyofSciences,Lanzhou,Gansu730000,China [2]StateKeyLaboratoryofSolidLubrication,LanzhouInstituteofChemicalPhysics,ChineseAcademyofSciences,Lanzhou,Gansu730000,China |
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| 基金项目： | Project supported by the DSFC of Lanzhou University(2001)and the K.C.Wong Education Foundation,Hong Kong(2001). |
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| 摘 要： | A G 4.0 dendrimer-like poly (amido amine) (PAMAM) based on silica nanoparticles was fabricated via a divergent approach.It was built from γ-aminopropyi silica nanoparfides (APSN) core via repetitive addition of acrylate (MA) and hexylenediamine (HDA). FT-IR and EA were used to monitor the progress of dendrimer during each step. The amino group content of the resulting product increased from 0.49 to 3.72 mmol/g after the 4th generation. In addition, the percentage of grafting increased with increasing generation and reached to 65.9% after 4th generation. It was found that the resulting silica nanoparticles could be dispersed in methanol with a mean hydrodynamic particle diameter of 152.7 nm although the silica nanoparticles had agglomerated during the storage period.
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| 关 键 词： | 制备 树枝状聚合物 PAMAM 聚氨基胺 硅纳米颗粒 有机合成 自组装 |
Fabrication of Dendrimer-like PAMAM Based on Silica Nanoparti-cles |
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| LIU,Peng TIAN,Jun LIU,Wei-Min XUE,Qun-Ji.Fabrication of Dendrimer-like PAMAM Based on Silica Nanoparti-cles[J].Chinese Journal of Chemistry,2003,21(7):960-963. |
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| Authors: | LIU Peng TIAN Jun LIU Wei-Min XUE Qun-Ji |
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| Institution: | LIU,Peng TIAN,Jun LIU,Wei-Min XUE,Qun-Ji
Department of Chemistry,Lanzhou University,Lanzhou,Gansu 730000,China
State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou,Gansu 730000,China |
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| Abstract: | A G 4.0 dendrimer‐like poly(amido amine) (PAMAM) based on silica nanoparticles was fabricated via a divergent approach. It was built from γ‐aminopropyl silica nanoparticles (APSN) core via repetitive addition of acrylate (MA) and hexylenediamine (HDA). FT‐IR and EA were used to monitor the progress of dendrimer during each step. The amino group content of the resulting product increased from 0.49 to 3.72 mmol/g after the 4th generation. In addition, the percentage of grafting increased with increasing generation and reached to 65.9% after 4th generation. It was found that the resulting silica nanoparticles could be dispersed in methanol with a mean hydrodynamic particle diameter of 152.7 nm although the silica nanoparticles had agglomerated during the storage period. |
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| Keywords: | fabrication dendrimer-like PAMAM silica nanopar-ticle |
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