ORBi: Chakkalakal G. L. - Effect of silica-coated poly(butyl methacrylate)-block-poly(methyl methacrylate) double-shell particles on the mechanical properties of PMMA composites

Reference : Effect of silica-coated poly(butyl methacrylate)-block-poly(methyl methacrylate) double-...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/110169

Title :	Effect of silica-coated poly(butyl methacrylate)-block-poly(methyl methacrylate) double-shell particles on the mechanical properties of PMMA composites
Language :	English
Author, co-author :	Chakkalakal, G. L. [Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Germany > > > >]
	Alexandre, Michaël [University of Liège (ULg) > 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 > > > >]
Publication date :	Sep-2012
Journal title :	Macromolecular Materials and Engineering
Publisher :	Wiley
Volume :	297
Issue/season :	9
Pages :	887-893
Peer reviewed :	Yes (verified by ORBi)
Audience :	International
ISSN :	1438-7492
e-ISSN :	1439-2054
City :	Weinheim
Keywords :	[en] nanostructured materials ; colloids ; silica nanoparticle
Abstract :	[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 units :	Center for Education and Research on Macromolecules (CERM)
Funders :	Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; The DAAD-HGF fellowship
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/110169
DOI :	10.1002/mame.201100365
Other URL :	http://onlinelibrary.wiley.com/doi/10.1002/mame.201100365/abstract

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