Amine-functionalized polyglycidyl methacrylate microsphere as a unified template for the synthesis of gold nanoparticles and single-crystal gold plates.
Polyglycidyl methacrylate (PGMA) microspheres, crosslinked and surface-functionalized by amine, can be used as a solid-state template for the synthesis of gold (Au) crystals in the forms of either nanoparticles (NPs) or plates. It is discovered that the polymer microsphere acts as an internal template to cultivate Au NPs inside the microsphere or an external template to generate the single-crystal plates depending on the critical concentration (Ccr ) of gold ions. The ion-dipole interaction and the structure-dependent solubility of gold induce two distinct gold nanostructures in the presence of the functionalized polymer microspheres. The catalytic activity and long-term storage of the developed gold nanostructures that can be easily scaled-up for mass production through the developed novel methodology is demonstrated.
Department of Polymer Science and Engineering Sungkyunkwan University, Suwon, 440-746, South Korea.
Joon Suk
JS
Oh
Luong Nguyen
LN
Dang
Sung Woon
SW
Yoon
Pyoung Chan
PC
Lee
Dong Ouk
DO
Kim
Kwang Jin
KJ
Kim
Jae Do
JD
Nam
D000588:Amines / Q000737:chemistry*; D000627:Aminophenols / Q000737:chemistry; D002384:Catalysis; D003432:Cross-Linking Reagents / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008855:Microscopy, Electron, Scanning; D008863:Microspheres; D009596:Nitrophenols / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry*; D012995:Solubility; D055672:Static Electricity
D000588:Amines; D000627:Aminophenols; D003432:Cross-Linking Reagents; D009596:Nitrophenols; D011109:Polymethacrylic Acids; C042535:polyglycidyl methacrylate; D006046:Gold; C026729:4-aminophenol; C024836:4-nitrophenol