scholarly journals Hydrophobization of silver nanoparticles through surface-initiated atom transfer radical polymerization

RSC Advances ◽  
2016 ◽  
Vol 6 (50) ◽  
pp. 44254-44260 ◽  
Author(s):  
Jose Enrico Q. Quinsaat ◽  
Frank A. Nüesch ◽  
Heinrich Hofmann ◽  
Dorina M. Opris
Keyword(s):  
Silver Nanoparticles ◽  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Core Shell ◽  
Atom Transfer ◽  
Polar Solvents ◽  
Poly Methyl Methacrylate ◽  
Shell Particles

Poly(methyl methacrylate) (PMMA)-coated Ag@SiO2core–shell particles with enhanced dispersibility in non-polar solvents were synthesized by surface-initiated atom transfer radical polymerization.

scholarly journals Synthesis of Poly(methyl methacrylate)-b-poly(N-isopropylacrylamide) Block Copolymer by Redox Polymerization and Atom Transfer Radical Polymerization

2018 ◽  
Vol 18 (3) ◽  
pp. 537 ◽  
Author(s):  
Melahat Göktaş ◽  
Guodong Deng
Keyword(s):  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Gel Permeation Chromatography ◽  
High Yield ◽  
Resonance Spectroscopy ◽  
Atom Transfer ◽  
Poly Methyl Methacrylate ◽  
Redox Polymerization

Poly(methyl methacrylate)-b-poly(N-isopropylacrylamide) [PMMA-b-PNIPAM] block copolymers were obtained by a combination of redox polymerization and atom transfer radical polymerization (ATRP) methods in two steps. For this purpose, PMMA macroinitator (ATRP-macroinitiator) was synthesized by redox polymerization of methyl methacrylate and 3-bromo-1-propanol using Ce(NH4)2(NO3)6 as a catalyst. The synthesis of PMMA-b-PNIPAM block copolymers was carried out by means of ATRP of ATRP-macroinitiator and NIPAM at 60 °C. The block copolymers were obtained in high yield and high molecular weight. The characterization of products was accomplished by using multi instruments and methods such as nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, gel permeation chromatography, and thermogravimetric analysis.

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