Preparation by suspension polymerization and characterization of polystyrene (PS)-poly(methyl methacrylate) (PMMA) core-shell nanocomposites

2011 ◽  
Vol 19 (6) ◽  
pp. 519-527 ◽  
Author(s):  
Dibyendu Debnath ◽  
B. B. Khatua
Keyword(s):  
Methyl Methacrylate ◽  
Suspension Polymerization ◽  
Core Shell ◽  
Poly Methyl Methacrylate

Suspension polymerization and characterization of transparent poly(methyl methacrylate-co-isobornyl methacrylate)

2007 ◽  
Vol 15 (5) ◽  
pp. 418-423 ◽  
Author(s):  
Sung Il Park ◽  
Sang In Lee ◽  
Soon-Jik Hong ◽  
Kuk Young Cho
Keyword(s):  
Methyl Methacrylate ◽  
Suspension Polymerization ◽  
Poly Methyl Methacrylate

Synthesis and characterization of modified poly(methyl methacrylate)/Al2O3nanocomposites as denture resins

2011 ◽  
Vol 31 (2-3) ◽  
Author(s):  
Mohammad Reza Saboktakin ◽  
Roya M. Tabatabaie ◽  
Abel Maharramov ◽  
Mohammad Ali Ramazanov
Keyword(s):  
Methyl Methacrylate ◽  
Analysis Data ◽  
Inorganic Materials ◽  
Infrared Analysis ◽  
Core Shell ◽  
Poly Methyl Methacrylate ◽  
The Core ◽  
Microscopy Image ◽  
Derived Properties

AbstractHybrid materials, which consist of organic-inorganic materials, are of profound interest owing to their unexpected synergistically derived properties. Aluminum oxide (Al2O3) nanoparticles/polymer composites have been produced using a one-system polymer synthesis. The linear polymer, poly(methyl methacrylate) (PMMA,MW=15,000 g/mol) is applied for the stabilization of Al2O3nanoparticles. Fourier transfer infrared analysis data and scanning electron microscopy image reveal that the core shell structure of the Al2O3/PMMA nanocomposite has been synthesized. The ratio of concentration of the capping polymer material to the concentration of the Al2O3precursor could control the size of Al2O3nanoparticles. With specific concentration of the reductant, the core-shell nanostructure could be fluctuated in order.

Insight into the structure of polystyrene-poly(methyl methacrylate) core-shell particles synthesized by seeded suspension polymerization

2020 ◽  
pp. 096739112098276
Author(s):  
H Rostami ◽  
F Abbasi ◽  
K Jalili ◽  
E Mehravar ◽  
M Najafpour
Keyword(s):  
Electron Microscopy ◽  
Methyl Methacrylate ◽  
Suspension Polymerization ◽  
Particle Morphology ◽  
Polymer Particle ◽  
Outer Shell ◽  
Core Shell ◽  
Poly Methyl Methacrylate ◽  
Transmission Electron ◽  
Shell Particles

Core-shell particles were synthesized employing seeded suspension polymerization. Suspension polystyrene (PS) particles were used as seeds, and poly(methyl methacrylate) (PMMA) was synthesized in the presence of polystyrene seeds. A combination of solvent extraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy techniques were employed to study the structure and morphology of synthesized particles. The results suggested a core-inner shell-outer shell structure for the synthesized particles in which the PS core was covered by a PMMA-rich inner shell and a very thin PS-rich outer shell. The size and concentration of PMMA domains decreased from the outer shell toward the core of the particle, and particle morphology was mainly controlled by the limitations to the diffusion of MMA through the polymer particle.

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