Pregledni rad
The influence of the chemical structure on the properties of molecularly imprinted crosslinked polymers
Ana ERCEG KUZMIĆ
; INA-Industrija nafte d.d., Sektor istraživanja i razvoja, Zagreb
Radivoje VUKOVIĆ
; INA-Industrija nafte d.d., Sektor istraživanja i razvoja, Zagreb
Grozdana BOGDANIĆ
; INA-Industrija nafte d.d., Sektor istraživanja i razvoja, Zagreb
Dragutin FLEŠ
; INA-Industrija nafte d.d., Sektor istraživanja i razvoja, Zagreb
Sažetak
The present paper describes the synthesis of monomers N-methacryl-N,N’-dicyclohexylurea (MA-DCU) and N-methacryl-N,N’-diisopropylurea (MA-DiPrU) and their polymerization with ethylene glycol dimethacrylate (EDMA). Polymerization were carried out in butanone by using dibenzoyl-peroxide (Bz2O2) up to high conversion. All prepared copolymers are insoluble in common organic solvent. Crosslinked copolymers decompose thermally at temperatures from 180 °C to 450 °C under the separation of cyclohexylisocyanate (C6H11NCO) or isopropylisocyanate (C3H7NCO) at temperature between 180 °C and 250 °C. Residues after the removal of isocyanate are thermally stable nanoporous crosslinked copolymers of methacryl-cyclohexylamide (MA-CHA) or methacryl-isopropylamide (MA-iPrA) with EDMA, which decompose by a one-step mechanism between 280 °C and 450 °C.
Nonporous model copolymers of MA-CHA and MA-iPrA with EDMA were also prepared in order to compare their properties with the properties of corresponding nanoporous copolymers.
Ključne riječi
chemical structure; molecularly imprinted copolymers; imprinted copolymers; nanoporous copolymers; nonporous copolymers; poly(N-methacryl-N,N’-dicyclohexylurea-co-ethylene-glycol dimethacrylate); poly(N-methacryl-N,N’- diisopropylurea -co-ethylene-glycol
Hrčak ID:
3142
URI
Datum izdavanja:
26.4.2006.
Posjeta: 1.375 *