Naslov
Study of Solute - Solvent Interactions by Gel Permeation Chromatography

Autori
Mencer, Helena Jasna ; Rek, Vesna

Izvornik
Chromatographia (0009-5893) 84 (1986); 167-174

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
polyurethane prepolymer ; gel-permeation ; chromatography ; chromatographic systems ; solution structure

Sažetak
The behaviour of polyurethane prepolymer (PP), based on 4, 4'-diphenylhanediisocyanate (MDI), and polyethylene glycol adipate, in two solvents has been investigated by gel-permeation chromatography (GPC). Tetrahydrofuran (THF), and dimethylformamide (DMF), were used as the solvents. Different chromatographic systems have been used such as: PP7THF/Poragel, PP/DMF/Poragel, PP/THF/porous glass and PP/DMF/porous glass. The shapes and shifts of the peaks show changes in the solution structure of PP. They are considered in respect to intra-and intermolecular interactions of the PP molecules, to kinetic and thermodynamic dissolution properties of the solvents and to preferential interactions among solute, solvent and gel.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA