magistrsko delo
Nejc Kolman (Author), Janez Cerar (Mentor), Franc Požgan (Thesis defence commission member), Matija Tomšič (Thesis defence commission member)

Abstract

Z ionsko izmenjevalno kromatografijo sem v raztopini poli(alilamin hidroklorida) kloridne ione zamenjal s hidroksidnimi in tako pripravil rahlo bazično raztopino polialilamina. Vzorce merjenih raztopin polialilaminskih soli sem pripravil z dodajanjem izbrane količine raztopin različnih kislin v založno raztopino polialilamina. Tako pripravljenim raztopinam izbranih soli (F-, Cl-, Br-, I-, ClO4-, NO3-, AcO-, CF3COO-, C6H13COO- in PhSO-) polialilamina z različnimi stopnjami nevtralizacije (od 0 % do 120 %) sem pri 20 °C oziroma 25 °C izmeril viskoznost, viskozni in elastični modul ter določil zeta potencial in hidrodinamski radij. Preučeval sem odvisnost teh lastnosti od vrste protiionov, koncentracije polielektrolita, molekulske mase polielektrolita in stopnje nevtralizacije. V delu skušam pojasniti vpliv ionov na izmerjene lastnosti raztopin.

Keywords

polielektroliti;polialilamin;reologija;viskoznost;elastični model;viskozni model;zeta potencial;hidrodinamski radij;protiioni;stopnja nevtralizacije;magistrska dela;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [N. Kolman]
UDC: 544.6.018.47-036.5:532.135(043.2)
COBISS: 73994499 Link will open in a new window
Views: 399
Downloads: 52
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Other data

Secondary language: English
Secondary title: Rheological properties of aqueous solutions of chosen polyallylamine salts
Secondary abstract: With ion exchange chromatography I substituted the chloride ions in a solution of poly(allylamine hydrochloride) with hydroxide ions, obtaining a mildly basic solution of polyallylamine. I prepared measuring solutions of polyallylamine salts by adding different acid solutions to the batch solution of polyallylamine. The aqueous solutions of chosen polyallylamine salts (F-, Cl-, Br-, I-, ClO4-, NO3-, AcO-, CF3COO-, C6H13COO- in PhSO3-) with different degree of neutralization (from 0 % to 120 %) were characterized by measuring viscosity, elastic and viscous modulus as well as zeta potential together with hydrodinamic radious. I studied the effect of counterion type, polyelectrolyte concentration, polyelectrolyte molecular mass and the degree of neutralization on solution properties. In my thesis I explain the impact different ions have on the solution.
Secondary keywords: polyallylamin;polyelectrolite;viscosity;elastic modulus;viscous modulus;zeta potential;hydrodynamic radius;counterions;degree of neutralization;
Type (COBISS): Master's thesis/paper
Study programme: 1000375
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, smer Kemija
Pages: X f., 76 str.
ID: 13133577