Effect of silica-coated poly(butyl methacrylate)-block-poly(methyl methacrylate) double-shell particles on the mechanical properties of PMMA composites
Chakkalakal, G. L.; Alexandre, Michaël; Boschetti-de-Fierro, Adrianaet al.
2012 • In Macromolecular Materials and Engineering, 297 (9), p. 887-893
[en] Silica nanoparticles with average diameters of 12nm are grafted with PBMA-b-PMMA double shells through typical ATRP from a Si12-g-(PBMA)Br macroinitiator using 2-BriB as the initiator. A commercially available PMMA homopolymer is used for the preparation of composites with unmodified, silane-modified and double-shell-modified silica particles. Good mechanical properties are obtained for silica double shell containing systems. The silica content in double shell particle systems is varied from 0 to 2.5 wt%. A significant improvement in impact properties is observed. The surface-modified silica particles are characterized by ATR-FTIR, NMR, GPC, and thermal analysis. TEM analysis is used to analyze the nature of dispersion of particles in the composites.
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Chakkalakal, G. L.; Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Germany
Alexandre, Michaël ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Boschetti-de-Fierro, Adriana; Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Germany
Volker, Abetz; Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Germany
Language :
English
Title :
Effect of silica-coated poly(butyl methacrylate)-block-poly(methyl methacrylate) double-shell particles on the mechanical properties of PMMA composites
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