Solution spinning of fibers with oriented porosity

Autor:	R. Koningsveld, H. Berghmans, R. De Cooman, P. Vandeweerdt
Rok vydání:	1996
Předmět:	Materials science Polymers and Plastics General Chemistry Methacrylate Surfaces Coatings and Films chemistry.chemical_compound chemistry Phase (matter) Materials Chemistry Vitrification Extrusion Fiber Methyl methacrylate Composite material Porosity Spinning
Zdroj:	Journal of Applied Polymer Science. 60:1127-1135
ISSN:	1097-4628 0021-8995
Popis:	The preparation of porous fibers from the quasi-ternary system poly(methyl methacrylate)/poly(ethyl methacrylate)-1-butanol is based on the combination of different liquid-liquid demixing processes that interfere with the vitrification process. Polymer-polymer demixing takes place at high temperature and interferes at lower temperature with polymer-solvent demixing and the vitrification of some of the formed phases. When these processes take place during extrusion, porous composite fibers are obtained. They consist of fibrils of poly(methyl methacrylate) coated with poly(ethyl methacrylate), and these fibrils are separated by micrometer-sized channels that extend along the fiber axis. The formation of these fibers is discussed within the framework of the phase behavior of the quasi-ternary system.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::79580b1c988376047b3c246a5a3300ba https://doi.org/10.1002/(sici)1097-4628(19960523)60:8<1127::aid-app5>3.0.co Zobrazit plný text záznamu Plný text