High solid content poly(butyl acrylate)/poly(methyl methacrylate) core/shell nanosized spheres synthesised by microemulsion polymerisation

Core–shell nanosized polymer particles with poly(butyl acrylate) (PBA) as core and poly(methyl methacrylate) (PMMA) as shell were synthesised via a semi-continuous two-stage microemulsion polymerisation. A series of experiments were conducted to investigate the maximum solid content of the microemul...

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Bibliographic Details
Published in:Micro & nano letters 2016-03, Vol.11 (3), p.164-168
Main Authors: Sheng, Xinxin, Xie, Delong, Yang, Wenxing, Zhang, Xinya, Zhong, Li
Format: Article
Language:English
Subjects:
1H‐NMR spectroscopy
conducting polymers
core monomer
core‐shell nanosized polymer particles
core‐shell nanostructures
DLS
dynamic light scattering techniques
filled polymers
light scattering
Microemulsions
Monomers
nanocomposites
nanofabrication
nanoparticle size
nanoparticles
Nanostructure
particle size
Particulate composites
PBA‐PMMA core‐shell composite latexes
poly(butyl acrylate) core
poly(methyl methacrylate) shell
polymerisation
Polymerization
Polymethyl methacrylates
proton magnetic resonance
proton nuclear magnetic resonance spectroscopy
scanning electron microscopy
semicontinuous two‐stage microemulsion polymerisation
Surfactants
surfactant‐monomer ratios
TEM
Transmission electron microscopy
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Summary:Core–shell nanosized polymer particles with poly(butyl acrylate) (PBA) as core and poly(methyl methacrylate) (PMMA) as shell were synthesised via a semi-continuous two-stage microemulsion polymerisation. A series of experiments were conducted to investigate the maximum solid content of the microemulsion under different surfactant/monomer ratios, and it was found that the maximum solid content could reach around 43.73% with minimum surfactant/monomer at only 5.25 wt%. The particle samples were characterised by proton nuclear magnetic resonance (1H-NMR), scanning electron microscopy, transmission electron microscopy (TEM) and dynamic light scattering (DLS) techniques. 1H-NMR and TEM results revealed that PBA/PMMA core/shell composite latexes were synthesised successfully by microemulsion polymerisation. DLS studies indicated that an optimal dosage of surfactant (1.29 wt% of the total amount of monomers) was found to synthesise particles with desired core–shell structure, which was consistent with the theoretical calculation. The size of nanoparticles increased with the increase in the amount of core monomer, showing an inverse relationship with surfactants.
ISSN:1750-0443
1750-0443
DOI:10.1049/mnl.2015.0359