In situ synthesis of poly(styrene-co-maleic anhydride)/SiO2 hybrid composites via “grafting onto” strategy based on nitroxide-mediated radical polymerization

2008 ◽  
Vol 68 (8) ◽  
pp. 1225-1230 ◽  
Author(s):  
Yunpu Wang ◽  
Yongqian Shen ◽  
Xiaowei Pei ◽  
Shoucun Zhang ◽  
Hangong Liu ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Radical Polymerization ◽  
Hybrid Composites ◽  
In Situ Synthesis ◽  
Grafting Onto

One-step in situ synthesis of graphene–TiO2 nanorod hybrid composites with enhanced photocatalytic activity

2015 ◽  
Vol 61 ◽  
pp. 280-286 ◽  
Author(s):  
Mingxuan Sun ◽  
Weibin Li ◽  
Shanfu Sun ◽  
Jia He ◽  
Qiang Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hybrid Composites ◽  
In Situ Synthesis ◽  
Tio2 Nanorod ◽  
One Step

scholarly journals In Situ Synthesis of Poly(methyl methacrylate)/SiO2Hybrid Nanocomposites via “Grafting Onto” Strategy Based on UV Irradiation in the Presence of Iron Aqueous Solution

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Hong Zhang ◽  
Chao Li ◽  
Jinshan Guo ◽  
Limin Zang ◽  
Jiahe Luo
Keyword(s):  
Aqueous Solution ◽  
Methyl Methacrylate ◽  
Uv Irradiation ◽  
Hybrid Composites ◽  
Monomer Conversion ◽  
Hybrid Particles ◽  
Poly Methyl Methacrylate ◽  
Ft Ir ◽  
Grafting Onto

Poly(methyl methacrylate)/SiO2(PMMA/SiO2) hybrid composites were prepared via “grafting onto” strategy based on UV irradiation in the presence of iron aqueous solution. Two steps were used to graft polymethyl methacrylate (PMMA) onto the surface of nanosilica, anchoring 3-(methacryloxy) propyl trimethoxysilane (MPTS) onto the surface of nanosilica to modify it with double bonds, and then grafting PMMA onto the surface of nanosilica with FeCl3as photoinitiator. The products were characterized by FT-IR, TGA, TEM, DLS, and XPS. The results showed that it is easy to graft PMMA onto the surface of nanosilica under UV irradiation, and the hybrid particles are monodisperse and have core-shell structure with nanosilica as the core and PMMA layers as the shell. Furthermore, the products initiated by FeCl3have higher monomer conversion, percent grafting, and better monodispersion compared with the products initiated by traditional photoinitiator such as 2-hydroxy-4-(2-hydroxyethoxy)-2-methyl-propiophenone (Irgacure 2959).

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