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Titolo:
FREE-VOLUME STUDIES IN MISCIBLE POLYMER BLEND SYSTEMS
Autore:
CAMPBELL JA; GOODWIN AA; ARDI MS; SIMON GP; LANDRYCOLTRAIN CJT;
Indirizzi:
MONASH UNIV,DEPT MAT ENGN CLAYTON VIC 3168 AUSTRALIA MONASH UNIV,DEPT MAT ENGN CLAYTON VIC 3168 AUSTRALIA EASTMAN KODAK CO,IMAGING RES LABS ROCHESTER NY 14650
Titolo Testata:
Macromolecular symposia
, volume: 118, anno: 1997,
pagine: 383 - 388
SICI:
1022-1360(1997)118:<383:FSIMPB>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON-ANNIHILATION SPECTROSCOPY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
J.A. Campbell et al., "FREE-VOLUME STUDIES IN MISCIBLE POLYMER BLEND SYSTEMS", Macromolecular symposia, 118, 1997, pp. 383-388

Abstract

This paper summarises the currently available literature concerned with measurement of free volume in miscible, amorphous polymer blends using positron annihilation lifetime spectroscopy (PALS) which probes excluded volume at the angstrom level. Previously reported data is compared with new data from a range of different blend systems. Miscible blends tend to show a negative deviation of free volume size (and to a lesser degree free volume fraction) on mixing due to the intimacy of packing of the blend component macromolecules. A largely immiscible system is also reported and shows a different behaviour (positive deviation of free volume size) and this is ascribed to additional free volume at the interface.

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Documento generato il 27/09/20 alle ore 22:23:36