title: Polymer shell as a protective layer for the sandwiched gold nanoparticles and their recyclable catalytic property.
abstract: Poly(ethyleneglycol methacrylate) (PEGDMA) shell was used as a protective layer for the sandwiched gold nanoparticles, which were prepared through the in situ reduction in the HAuCl4 precursor in the presence of (aminopropyl)trimethoxysilane (APS) modified silica/PEGDMA core-shell microspheres. In this process, the silica/PEGDMA core-shell microspheres were afforded by the distillation-precipitation polymerization of the EGDMA monomer on the APS-modified silica particles with the aid of hydrogen-bonding interaction. The gold nanoparticles were formed at the interface between the silica core and the PEGDMA outer layer through the strong coordinate interaction between the gold nanoparticles and the amino groups on the surface of the silica during the reduction in HAuCl4. The sandwiched gold nanoparticles exhibited highly catalytic efficiency and facile recovery with good stability.
authors: Key Laboratory of Functional Polymer Materials, the Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, PR China.
authors: Bin
authors: B
authors: Liu
authors: Xiaoman
authors: X
authors: Wang
authors: Yanwei
authors: Y
authors: Zhao
authors: Jianchao
authors: J
authors: Wang
authors: Xinlin
authors: X
authors: Yang
mesh_terms: D000277:Adjuvants, Pharmaceutic / Q000737:chemistry; D002384:Catalysis; D006046:Gold / Q000737:chemistry*; D000949:Histocompatibility Antigens Class II; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*
chemical_list: D000277:Adjuvants, Pharmaceutic; D000949:Histocompatibility Antigens Class II; D011108:Polymers; D006046:Gold