New approach of using emulsifier-free emulsion polymerisation to prepare magnetic polymeric nanoparticles. (March 2014)

• Record Type: Journal Article
• Authors: Nguyen, H. Q.; Duong, Q. H.; Hoang, N. T. K.
• Is Part Of: Plastics, rubber, and composites. Volume 43:Number 2(2014)
• Page Start: 63
• Page End: 70
• Publication Date: 2014-03
• Subjects: Plastics -- Periodicals; Rubber -- Periodicals; Polymeric composites -- Periodicals; Polymer engineering -- Periodicals; 668.9
• DOI: 10.1179/1743289814Y.0000000073
• Languages: English
• ISSNs: 1465-8011

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <sec> <p>A new approach of using emulsifier-free emulsion polymerisation to prepare magnetic nanoparticles coated by poly-methacrylic acid (PMAA) was followed. The results showed the formation of PMAA shells covering magnetite cores. The shell thickness was customised by varying the synthesis parameters such as mass ratio of monomer to magnetic particles, temperature and reaction time. The experimental investigations indicate that the polymerisation is dominated by the homogeneous nucleation in solutions and the later growth into the uniform polymeric layer occurs at the surface of solid particles. The resulting PMAA coated particles presented significantly higher saturation magnetisation compared to that in other studies with the presence of surfactants or emulsifiers.</p> </sec> </abstract>