A new method for preparing porous magnetic PS particles modified with EVA via a phase inversion emulsion procedure

Magnetically assisted separation method is a rapid and easy technique based on the separation and isolation of magnetic substance by the application of an external magnetic field. However, the service life of absorbents using polystyrene as skeleton is heavily shorted by the intrinsic brittleness of...

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Bibliographic Details
Published inColloid and polymer science Vol. 301; no. 4; pp. 293 - 302
Main Authors Duan, Li, Guo, Congshuai, Fan, Jinlong, Duan, Yufeng, Qiu, Pengju, Huang, Ping, Yan, Junxia
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2023
Springer Nature B.V
Subjects
Adsorbents
Adsorption
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Crystal structure
Efficiency
Emulsion polymerization
Energy consumption
Food Science
Impact strength
Iron oxides
Magnetic materials
Nanoparticles
Nanotechnology and Microengineering
Original Contribution
Phase inversion
Phase shift
Physical Chemistry
Polymer Sciences
Polymers
Polystyrene resins
Polyvinyl alcohol
Porous materials
Science
Separation
Service life
Soft and Granular Matter
Particle
Phase inversion
EVA
Magnetic
Polystyrene
Adsorbent
Porous
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Summary:Magnetically assisted separation method is a rapid and easy technique based on the separation and isolation of magnetic substance by the application of an external magnetic field. However, the service life of absorbents using polystyrene as skeleton is heavily shorted by the intrinsic brittleness of polystyrene. A novel method of preparing porous magnetic polystyrene particles modified with EVA targeting to eliminate the problems of homogeneous polystyrene is described. The optimum hydrophile-lipophilic-balance (HLB) value, phase inversion temperature, and cloud point of the combined emulsifier selected in this work are analyzed and the optimized preparation conditions are determined accordingly. TEM and SEM show that the particles have a morphology structure that most of Fe 3 O 4 particles are embedded in the interior. The dimension distribution of the pores in porous PS/EVA/Fe 3 O 4 particles mainly belongs to mesopore. XRD indicates that the Fe 3 O 4 particles keep their intrinsic crystal structure in the prepared porous magnetic particles.
ISSN:0303-402X
1435-1536
DOI:10.1007/s00396-023-05067-4