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Title:Polimerne membrane za ločevanje krvi; kemijska modifikacija njihove površine
Authors:ID Lahovnik, Vesna (Author)
ID Kukovičič, Irena (Author)
ID Stropnik, Črtomir (Author)
Files:URL http://www.dlib.si/details/URN:NBN:SI:doc-2JKTDRUO
 
Language:Slovenian
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Abstract:V laboratoriju pripravljene membrane iz polisulfona (PSf), celuloznega acetata(CA), poliamida 4,6 (PA4,6), poliamida 6,6 (PA6,6) in kopolimera poli-(akrilonitril-ko-akrilna kislina)(kANAK) smo karakterizirali tako, da smo izmerili njihove debeline ter pretoke za deionizirano vodo in nato z njimi izvedli ločevanje krvi prašičev. Membrane iz PSf smo na površini modificirali s Friedel-Crafts-ovo elektrofilno substitucijo aromatskih delov molekule PSf, pri čemer smo vezali 1-klordekan in propilenoksid. Izvedli smo tudi sulfoniranje z žveplovo kislino. Modificirane membrane smo prav tako karakterizirali z merjenjem debelin, pretokov za deionizirano vodo in določanjem "streaming"-potenciala ter nato z njimi izvedli ločevanje krvi prašičev. S primerjavo lastnosti nemodificiranih in na površini kemično modificiranih membran smo ugotavljali učinke kemijske modifikacije površine na separacijske lastnosti polimernih membran.
Keywords:polimerne membrane, kemijska modifikacija, površina, membrane, ločevanje krvi
Publisher:Inštitut za kovinske materiale in tehnologije
Year of publishing:1999
Number of pages:str. 205-208
Numbering:Letn. 33, št. 3/4
PID:20.500.12556/DKUM-53299 New window
UDC:678.6:616.15
ISSN on article:1318-0010
COBISS.SI-ID:156586 New window
NUK URN:URN:SI:UM:DK:Q1L68Z5U
Publication date in DKUM:10.07.2015
Views:1654
Downloads:61
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Kovine zlitine tehnologije
Shortened title:Kovine zlit. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1318-0010
COBISS.SI-ID:31742209 New window

Secondary language

Language:English
Title:Polymeric membranes for blood separation; chemical modification of their surfaces
Abstract:Laboratory prepared membranes from polysulfone (PSf), cellulose acetate (CA), polyamide 4,6 (PA4,6), polyamide 6,6 (PA6,6) and from poly-acrilonitrile-co-acrilic acid (kANAK) were characterized by measuring the thickness, deionized water fluxes and then by porcine blood separation. The surfaces of PSf membranes were modified with the series of Friedel-Crafts electrophilic substitutions of aromatic rings in polysulfone molecules with use of 1-chlorodecane and propylene oxide. We also modified the membrane surface by sulfuric acid. All modified membranes were characterized by measuring thicknesses, deionized water fluxes, by measuring the striming potentials and then by porcine blood separation. We examined the effects of chemical modifications with comparison of properties of "native" and surface chemically modified membranes on blood separation characteristics of polymeric membranes.
Keywords:polymeric membranes, chemical modification, membrane surface, blood separation


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