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Autoren:
Harms, Stephan; Rätzke, Klaus; Faupel, Franz; Chaukura, N.; Budd, P. M.; Egger, Werner; Ravelli, Luca 
Dokumenttyp:
Zeitschriftenartikel / Journal Article 
Titel:
Aging and free volume in a polymer of intrinsic microporosity (PIM-1) 
Zeitschrift:
Journal of Adhesion 
Jahrgang:
88 
Heftnummer:
Jahr:
2012 
Seiten von - bis:
608-619 
Sprache:
Englisch 
Stichwörter:
free volume ; polymeric membranes ; aging ; thin films ; positron annihilation lifetime ; spectroscopy ; polymers of intrinsic microporosity 
Abstract:
There is a growing market for polymeric gas separation membranes for applications such as air separation and carbon dioxide capture. One of the key properties dominating transport is the free volume between atoms, allowing gas diffusion. However, thin films, in particular, undergo aging, decreasing free volume, and, hence, performance with time. We have measured the change in free volume during aging of thin films of a polymer of intrinsic microporosity (PIM-1) by depth-resolved positron annihil...    »
 
ISSN:
0021-8464 
Fakultät:
Fakultät für Luft- und Raumfahrttechnik 
Institut:
LRT 2 - Institut für angewandte Physik und Messtechnik 
Professur:
Dollinger, Günther 
Open Access ja oder nein?:
Nein / No