Magnetic composite based on vinylic template

• Published in: Journal of applied polymer science Vol. 108; no. 6; pp. 3690 - 3695
• Main Authors: Tudorachi, N, Chiriac, A.P
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.06.2008; Wiley
• Subjects: 3-epoxypropyl methacrylate; Applied sciences; Composites; core-shell magnetic composite; Exact sciences and technology; Forms of application and semi-finished materials; in situ magnetite; poly(styrene-co-methyl methacrylate-co-2; poly(styrene‐co‐methyl methacrylate‐co‐2,3‐epoxypropyl methacrylate); Polymer industry, paints, wood; Technology of polymers; Emulsion copolymerization; in situ magnetite; Crosslinking; Experimental study; Methyl methacrylate copolymer; Composite particles; poly(styrene- co-methyl methacrylate-co-2,3-epoxypropyl methacrylate); Oxide ceramics; Magnetic susceptibility; Crosslinked copolymer; Ferrites; Diamine; Glycidyl methacrylate copolymer; Magnetic material; Preparation; core-shell magnetic composite; Radical copolymerization; Magnetic properties; Styrene copolymer
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.28046

This article presents the achievement of a magnetic composite having a vinylic polymeric structure as matrix based on a styrene/methyl methacrylate/2,3-epoxypropyl methacrylate. The synthesis of the copolymers performed through an emulsion polymerization process was realized in the presence of potassium persulfate as radical initiator and sodium lauryl sulfate as anionic tensioactive agent. To have a network capable for a better coupling of the ferrite, the vinylic polymeric structure was crosslinked with a diamino-compound. The magnetic composite obtainment was confirmed by the IR, DSC, and thermogravimetric analysis, as well as by optic and electronic microscopy, and also by the determination of the magnetic susceptibility of the products.