Evaluation of polypropylene grafted with maleic anhydride and styrene as a compatibilizer for polypropylene/clay nanocomposites
Identifieur interne : 002704 ( Main/Exploration ); précédent : 002703; suivant : 002705Evaluation of polypropylene grafted with maleic anhydride and styrene as a compatibilizer for polypropylene/clay nanocomposites
Auteurs : Jiseon Lee [Corée du Sud] ; Jin Kwang Kim [Corée du Sud] ; Younggon Son [Corée du Sud]Source :
- Polymer Bulletin [ 0170-0839 ] ; 2012-01-01.
English descriptors
Abstract
Abstract: Among modified Poly(propylene)s (PPs) grafted with polar monomers, PP grafted with maleic anhydride (PP-g-MAH) is known to be the most efficient compatibilizer for PP/clay nanocomposites, since it provides well-dispersed nanostructures and yields optimal physical properties of the nanocomposites. One drawback of this material, however, is that it becomes brittle and its viscosity decreases drastically, leading to nanocomposites with low toughness as the graft degree of MAH increases. Therefore, there is a limitation to increasing both stiffness and toughness of PP/clay nanocomposites with PP-g-MAH. In this study, we investigated the performance of a PP grafted with maleic anhydride and styrene (PP-g-MAH-St) as compatibilizers in PP/clay nanocomposites. It was found that the incorporation of styrene as a comonomer prevents molecular weight reduction of the PP main chain upon high loading of a radical initiator for high graft degree of MAH. The compatibilizers (PP-g-MAH-St) thus obtained show good compatibilizing performance in PP/clay nanocomposites. The PP/clay nanocomposites compatibilized by PP-g-MAH-St show both high stiffness and toughness, which is accomplished by using a compatibilizer of higher viscosity compared with PP-g-MAH.
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DOI: 10.1007/s00289-011-0642-5
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Bull. </title><idno type="ISSN">0170-0839</idno><idno type="eISSN">1436-2449</idno><imprint><publisher>Springer-Verlag</publisher><pubPlace>Berlin/Heidelberg</pubPlace><date type="published" when="2012-01-01">2012-01-01</date><biblScope unit="volume">68</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="541">541</biblScope><biblScope unit="page" to="551">551</biblScope></imprint><idno type="ISSN">0170-0839</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0170-0839</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Melt grafting</term><term>PP- g -MAH-co-styrene</term><term>PP/clay nanocomposites</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Among modified Poly(propylene)s (PPs) grafted with polar monomers, PP grafted with maleic anhydride (PP-g-MAH) is known to be the most efficient compatibilizer for PP/clay nanocomposites, since it provides well-dispersed nanostructures and yields optimal physical properties of the nanocomposites. One drawback of this material, however, is that it becomes brittle and its viscosity decreases drastically, leading to nanocomposites with low toughness as the graft degree of MAH increases. Therefore, there is a limitation to increasing both stiffness and toughness of PP/clay nanocomposites with PP-g-MAH. In this study, we investigated the performance of a PP grafted with maleic anhydride and styrene (PP-g-MAH-St) as compatibilizers in PP/clay nanocomposites. It was found that the incorporation of styrene as a comonomer prevents molecular weight reduction of the PP main chain upon high loading of a radical initiator for high graft degree of MAH. The compatibilizers (PP-g-MAH-St) thus obtained show good compatibilizing performance in PP/clay nanocomposites. The PP/clay nanocomposites compatibilized by PP-g-MAH-St show both high stiffness and toughness, which is accomplished by using a compatibilizer of higher viscosity compared with PP-g-MAH.</div></front></TEI><affiliations><list><country><li>Corée du Sud</li></country></list><tree><country name="Corée du Sud"><noRegion><name sortKey="Lee, Jiseon" sort="Lee, Jiseon" uniqKey="Lee J" first="Jiseon" last="Lee">Jiseon Lee</name></noRegion><name sortKey="Kim, Jin Kwang" sort="Kim, Jin Kwang" uniqKey="Kim J" first="Jin Kwang" last="Kim">Jin Kwang Kim</name><name sortKey="Son, Younggon" sort="Son, Younggon" uniqKey="Son Y" first="Younggon" last="Son">Younggon Son</name><name sortKey="Son, Younggon" sort="Son, Younggon" uniqKey="Son Y" first="Younggon" last="Son">Younggon Son</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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