DYEING IN SUPERCRITICAL CO2 - DETERMINATI ON OF PARAMETERS INFLUENCING THE STRUCTURAL CHARACTERISTICS OF POLYA(ETHYLENE TEREPHTHALATE) FIBROUS MATERIAL

Citation
D. Knittel et al., DYEING IN SUPERCRITICAL CO2 - DETERMINATI ON OF PARAMETERS INFLUENCING THE STRUCTURAL CHARACTERISTICS OF POLYA(ETHYLENE TEREPHTHALATE) FIBROUS MATERIAL, Die Angewandte makromolekulare Chemie, 218, 1994, pp. 69-79
Citations number
31
Categorie Soggetti
Polymer Sciences
ISSN journal
00033146
Volume
218
Year of publication
1994
Pages
69 - 79
Database
ISI
SICI code
0003-3146(1994)218:<69:DISC-D>2.0.ZU;2-4
Abstract
The effect of dyeing in supercritical fluids on characteristics of the polymeric structure is investigated using poly(ethylene terephthalate ) fibers. The supercritical fluid (CO2) causes a decrease in the glass transition temperature and the formation of a network of stabilizing crystallites, which - without the use of a fluid - can only be obtaine d at significantly higher temperatures. The implications of fiber stru cture for successful dyeing or impregnation of fibrous material in sup ercritical systems are discussed.