Merjenje gostot raztopin polimerov in elektrolitov

Fidanoski Kerševan, Žan (author), Urbič, Tomaž (mentor)

V okviru diplomskega dela sem preučeval vpliv temperature in sestave na gostoto, navidezni molski volumen in parcialni molski volumen polietilen glikola (PEG) z molekulsko maso 1500 g/mol in 3000 g/mol v vodnih raztopinah. Diplomsko delo se osredotoča na meritve, opravljene pri 10 °C, 20 °C in 30 °C in različnih masnih deležih. Cilj je bil razumeti, kako ti parametri vplivajo na volumetrične lastnosti PEG v vodnih raztopinah. Ugotovitve kažejo, da temperatura in sestava bistveno vplivata na volumetrično obnašanje PEG, kar je ključno za njegovo uporabo v različnih industrijskih in farmacevtskih procesih. Rezultati diplomskega dela ponujajo dragocene vpoglede v interakcijo PEG s topili in njegove volumetrične značilnosti, kar omogoča boljše razumevanje za prihodnje raziskave.

• Language: Slovenian
• Keywords: polietilen glikol, gostota, navidezni molski volumen, parcialni molski volumen.
• Work type: Bachelor thesis/paper
• Organization: FKKT - Faculty of Chemistry and Chemical Technology
• Year: 2024
• PID: 20.500.12556/RUL-161304
• Publication date in RUL: 09.09.2024

Secondary language

• Language: English
• Title: Measurments of polymer and electrolyte density

Abstract

Within the diploma work I investigated the effect of temperature and composition on the density, apparent molar volume and partial molar volume of polyethylene glycol (PEG) with molecular weights of 1500 g/mol and 3000 g/mol in aqueous solutions. The thesis focuses on measurements taken at 10 °C, 20 °C, and 30 °C across varying mass fractions. The goal was to understand how these parameters influence the volumetric properties of PEG in aqueous solutions. The findings reveal that temperature and concentration significantly impact the volumetric behavior of PEG, which is crucial for its application in various industrial and pharmaceutical processes. The study's results offer valuable insights into PEG's interaction with solvents and its volumetric characteristics, providing a deeper understanding for future research.

• Keywords: polyethylene glycol, density, apparent molar volume, partial molar volume