Synthesis of core-shell structured carboxylated microparticles with a straightforward procedure and their evaluation as a polymer support
2005 (English)In: Journal of Polymer Science Part A: Polymer Chemistry, ISSN 0887-624X, E-ISSN 1099-0518, Vol. 43, no 23, 5889-5898 p.Article in journal (Refereed) Published
Poly(trimethylolpropane trimethacrylate) microspheres with a narrow size distribution were obtained by precipitation polymerization. They were subsequently modified by surface grafting with acrylic acid in a polar ethanol-water reaction medium, without stabilizer, yielding core-shell particles with diameters in the micrometer range. The resulting polymeric material was characterized by SEM and potentiometric titration, FTIR spectroscopy, and thermal analysis. It was shown that the particle characteristics (size, size distribution, and functionality) obtained by this straightforward procedure can be controlled by modifying the synthesis parameters (monomer concentration, agitation rate, and temperature). The high functionality, the chemical and physico-mechanical stability, as well as the possibility to control the performances of the resulting polymeric materials by synthesis allow its applications in various areas. Envisaging separation and catalysis domains, Cu(II), Cd(II), and Cr(III) uptake capacity from aqueous solutions was investigated under noncompetitive conditions as a function of synthesized particle functionality, time, and pH range. It was also found that the addition of the carboxylated. microparticles to polyethylene stabilized with alpha-tocopherol improved the thermo-oxidative behaviour of the polymeric material.
Place, publisher, year, edition, pages
2005. Vol. 43, no 23, 5889-5898 p.
additives, core-shell polymer particles, graft copolymers, metal retention, stabilization, poly(trimethylolpropane trimethacrylate) particles, trimethylolpropane trimethacrylate, latex-particles, emulsion polymerization, macroporous gels, porous particles, acid, functionality, methacrylate
IdentifiersURN: urn:nbn:se:kth:diva-15186DOI: 10.1002/pola.21022ISI: 000233391900015ScopusID: 2-s2.0-30544454553OAI: oai:DiVA.org:kth-15186DiVA: diva2:333227
QC 201005252010-08-052010-08-05Bibliographically approved