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Projects / Programmes source: ARIS

Površine in interfaze polimernih materialov (Slovene)

Research activity

Code Science Field Subfield
2.04.00  Engineering sciences and technologies  Materials science and technology   

Code Science Field
P352  Natural sciences and mathematics  Surface and boundary layery chemistry 
P370  Natural sciences and mathematics  Macromolecular chemistry 
Keywords
polymer blends, polymer composites, polymeric membrane, compatibilization, chemical modification of membrane surface, membrane formation, wet-phase separation, morphology, physical properties
Evaluation (rules)
source: COBISS
Researchers (10)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  05483  PhD Milan Brumen  Physics  Head  1999 - 2001  441 
2.  08612  PhD Samo Kralj  Physics  Researcher  1999 - 2001  916 
3.  16128  Vesna Lahovnik  Materials science and technology  Researcher  1996 - 2001  24 
4.  00260  Silva Leskovar    Researcher  1999 - 2001  12 
5.  13159  PhD Marko Marhl  Physics  Researcher  1999 - 2001  651 
6.  07545  PhD Vojko Musil  Materials science and technology  Researcher  1998 - 2001  446 
7.  17124  Janez Pohleven    Researcher  1999 - 2001  29 
8.  11244  PhD Gregor Radonjič  Chemical engineering  Researcher  1996 - 2001  345 
9.  11922  PhD Mitja Slavinec  Physics  Researcher  1996 - 2001  1,193 
10.  03033  PhD Črtomir Stropnik  Chemistry  Researcher  1999 - 2001  334 
Organisations (3)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0589  University of Maribor, Faculty of Education  Maribor  5089638013  14,992 
2.  0585  University of Maribor, Faculty of Economics and Business  Maribor  5089638001  23,274 
3.  0794  University of Maribor, Faculty of Chemistry and Chemical Engineering  Maribor  5089638012  13,190 
Abstract
Polymer blends, composites as well as polymer membranes are the research subjects of this project. Compatibilizing effects of styrene/rubber block copolymers (SRBC) poly(styrene-b-butadiene-b-styrene) (SBS), poly(styrene-b-ethylene-co-propylene) (SEP), and two types of poly(styrene-b-ethylene-co-butylene-b-styrene) (SEBS) which differ in their molecular weights on morphology, mechanical properties, and processing properties of immiscible polypropylene/polystyrene (PP/PS) blends are studied. The role of styrene/rubber block copolymers on the interfacial changes of PP/talc composites is also investigated. Mechanisms of the asymmetric porous membrane formation by wet phase inversion are investigated. A specific mechanism is interpreted in terms of successive postulated elementary processes which are distinguished by observing membrane surface and cross section morphology and pure water permeability as well as turbidity and shrinkage phenomena of the cast solution after immersion into the nonsolvent coagulation bath. Recently introduced in our laboratory, a preparation of the double layered membranes may enables much clearer introspection into the elementary processes and consequently into the membrane formation mechanisms. Chemical modification of the surface of the polymeric asymmetric porous membranes with purpose of diminishing the concentration polarisation and membrane fauling during the membrane separation process is investigated. This study is also designed in order to introduce bioactive materials (antibody, enzyme, cell organelle, cell etc) on the surface of polymeric membranes and in this way to follow research directions of preparing basic elements for biosensors and bioreactors. The influence of surface conditions on defects in liquid crystal cell is studied. A distribution of small ions in the solution at the close proximity of polyelectrolyte shells and its influence on the equilibrium distribution of the ions across these selective permeable hollow shells are studied.
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