Preparation and properties of ptfe-polystyrene nanocomposites

E. Giani, K. Sparnacci, M. Laus, G. Palamone, V. Kapeliouchko, V. Arcella

Risultato della ricerca: Capitolo in libro/report/atti di convegnoContributo a conferenzapeer review

Abstract

PTFE latexes with particles in the submicrometer size range, were employed as seeds in the emulsifier-free styrene emulsion polymerization to obtain PTFE-polystyrene (PS) core-shell nanoparticles. By appropriately choosing the ratio between the styrene monomer and the PTFE seed in the reaction mixture it is possible to obtain particles with predetermined size and narrow size distribution. Peculiar effects related to the high degree of segregation of PTFE cores and their small size, and possibly to the PTFE/PS interface were observed. As the glass transition of the polystyrene is lower than the one of the fluoropolymer, annealing the material at a temperature intermediate between the two glass transitions, but sufficiently high to assure that the flow of the shell-forming polymer fills the voids, lead to the formation nanostructured materials in which the PTFE cores are arranged in regular registry.

Lingua originaleInglese
Titolo della pubblicazione ospiteProceedings of the International Conference on Restoration, Recycling and Rejuvenation Technology for Engineering and Architecture Application
EditorG.C. Sih, L. Nobile
Pagine225-230
Numero di pagine6
Stato di pubblicazionePubblicato - 2004
Pubblicato esternamente
EventoProceedings of the International Conference on Restoration, Recycling and Rejuvenation Technology for Engineering and Architecture Application - Cesena, Italy
Durata: 7 giu 200411 giu 2004

Serie di pubblicazioni

NomeProceedings of the International Conference on Restoration, Recycling and Rejuvenation Technology for Engineering and Architecture Application

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???event.eventtypes.event.conference???Proceedings of the International Conference on Restoration, Recycling and Rejuvenation Technology for Engineering and Architecture Application
Paese/TerritorioItaly
CittàCesena
Periodo7/06/0411/06/04

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