1 research outputs found
Fabrication and Morphology of Spongelike Polymer Material Based on Cross-Linked Sulfonated Polystyrene Particles
A novel spongelike polymer material has been fabricated
by γ-ray
induced polymerization of methylmethacrylate (MMA) in an emulsion
containing cross-linked sulfonated polystyrene (CSP) particles. Scanning
electron microscopy (SEM) images reveal that the spongelike structure
is made up of interlinked nanosized PMMA particles with micrometer-sized
CSP-PMMA particles embedded inside. The nitrogen adsorption isotherm
discloses that the spongelike material has a high specific surface
area of 29 m<sup>2</sup>/g and a narrow pore size distribution of
60–120 nm. The formation mechanism is discussed in this paper,
which indicates that the key steps to form the spongelike material
include a Pickering emulsion stabilized by the CSP particles, followed
by the swelling process of MMA into these particles. This approach
offers a more convenient alternative to prepare polymeric spongelike
material without any etching procedure