LrgpV1, Main, Exploration, bibRecord, 001361

Concept of nano-reactor for the control of the selectivity of the free radical grafting of maleic anhydride onto polypropylene in the melt

Identifieur interne : 001361 ( Main/Exploration ); précédent : 001360; suivant : 001362

Concept of nano-reactor for the control of the selectivity of the free radical grafting of maleic anhydride onto polypropylene in the melt

Auteurs : Dean Shi [Hong Kong, République populaire de Chine] ; Guo-Hua Hu [France] ; R. K. Y. Li [Hong Kong]

Source :

Chemical engineering science [ 0009-2509 ] ; 2006.

RBID : Pascal:06-0206970

Descripteurs français

Pascal (Inist)
- Réacteur, Radical libre, Greffage, Extrusion, Confinement, Structure lamellaire, Montmorillonite, Méthode chimique, Cinétique, Diffusion.

English descriptors

KwdEn :
- Chemical method, Confinement, Diffusion, Extrusion, Free radical, Grafting, Kinetics, Lamellar structure, Montmorillonite, Reactor.

Abstract

The aim of this work was to apply the concept of nano-reactors to the reactive extrusion process of the free radical grafting of maleic anhydride onto polypropylene (PP), an important process in the polymer industry. Pre-confinement of dicumyl peroxide in the lamellar structures of organically modified montmorillonite allowed slowing down the release of primary radicals and consequently to significantly improve the selectivity of the grafting of maleic anhydride onto PP and decrease the selectivity of PP chain scission. To the authors' knowledge, this is the first time that a non-chemical method is found to solving the inherent problem facing this complicated process: increasing the grafting degree is always concomitant to increasing PP chain scission.

Affiliations:

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to stream Main, to step Curation: 001361

Le document en format XML

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<front><div type="abstract" xml:lang="en">The aim of this work was to apply the concept of nano-reactors to the reactive extrusion process of the free radical grafting of maleic anhydride onto polypropylene (PP), an important process in the polymer industry. Pre-confinement of dicumyl peroxide in the lamellar structures of organically modified montmorillonite allowed slowing down the release of primary radicals and consequently to significantly improve the selectivity of the grafting of maleic anhydride onto PP and decrease the selectivity of PP chain scission. To the authors' knowledge, this is the first time that a non-chemical method is found to solving the inherent problem facing this complicated process: increasing the grafting degree is always concomitant to increasing PP chain scission.</div>
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Concept of nano-reactor for the control of the selectivity of the free radical grafting of maleic anhydride onto polypropylene in the melt

Concept of nano-reactor for the control of the selectivity of the free radical grafting of maleic anhydride onto polypropylene in the melt

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri