Abstract
A simple method to synthesise phase-separated microparticles avoiding any control agents and post-polymerisation drying steps.
Highlights
Supercritical carbon dioxide is a sustainable reaction medium for polymerisations and is a promising alternative to conventional solvents
The initial focus of this research was the synthesis of particles containing a poly(benzyl acrylate) (PBzA) phase (Table 3), as a model system
From the Atomic force microscopy (AFM) data coupled with the other analytical techniques, it was concluded that a poly(methyl methacrylate) (PMMA) and a poly(butyl acrylate) (PBA) phase were likely to be present and it was possible that the system had formed a particle with a low Tg shell and high Tg core
Summary
Supercritical carbon dioxide (scCO2) is a sustainable reaction medium for polymerisations and is a promising alternative to conventional solvents. The loading of BzA measured post reaction by 1H NMR (unreacted monomer + polymer) was similar to the target loading (Table 3).
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