[en] Free radical miniemulsion polymerization of styrene (St), St/acrylonitrile 3 : 1 mixture or methylmethacrylate in the presence of multiwalled carbon nanotubes (MWCNT) was proven as a convenient way to obtain homogenous hybrids with perspectives in associated applications like foams specialties materials. Miniemulsion polymerization was viable up to 2% wt. MWCNT to monomer, without agglomerations. The grafting on MWCNT during the polymerization occurs without the need for supplementary functionalization and the polymer grafted nanotubes showed stable dispersions in the polymer solvent. Monomer polarity affected the grafting ability during the polymerization process. The nanocomposites obtained after purification and drying were used in foaming process. MWCNT presence in the related nanocomposites decreased the pore sizes in foam-like materials (for all three different matrices). At 1 wt % MWCNT content, low density (< 0.3 g/cm3), low pore size (< 10 μm) and high cell density (>109 cell/cm3) were achieved.
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Donescu, Dan; National Institute for Research & Development in Chemistry and Petrochemistry (ICECHIM), Bucharest, Polymer Department
Corobea, Mihai Cosmin; National Institute for Research & Development in Chemistry and Petrochemistry (ICECHIM), Bucharest, Polymer Department
Petcu, Cristian; National Institute for Research & Development in Chemistry and Petrochemistry (ICECHIM), Bucharest, Polymer Department
Spataru, Catalin Ilie; National Institute for Research & Development in Chemistry and Petrochemistry (ICECHIM), Bucharest, Polymer Department
Ghiurea, Marius; National Institute for Research & Development in Chemistry and Petrochemistry (ICECHIM), Bucharest, Polymer Department
Somoghi, Raluca; National Institute for Research & Development in Chemistry and Petrochemistry (ICECHIM), Bucharest, Polymer Department
Gabor, Raluca; National Institute for Research & Development in Chemistry and Petrochemistry (ICECHIM), Bucharest, Polymer Department
Thomassin, Jean-Michel ; University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Alexandre, Michaël; University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Christine ; University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Nanocomposites based on MWCNT and polystyrene, styrene-acrylonitrile copolymer, or polymethylmethacrylate, obtained by miniemulsion polymerization
Publication date :
05 December 2014
Journal title :
Journal of Applied Polymer Science
ISSN :
0021-8995
eISSN :
1097-4628
Publisher :
Wiley, New York, United States - New York
Volume :
131
Issue :
23
Pages :
41148 (1-10)
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
FP7 - 213277 - HARCANA - High Aspect Ratio Carbon-based Nanocomposites
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique CE - Commission Européenne
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