engleski

Copolymerization of N-tert-Butylacrylamide with Ethylene Glycol Dimethacrylate

N-tert-butylacrylamide (NtBA) was copolymerized with ethylene glycol dimethacrylate (EDMA) in butanone solution using dibenzoyl peroxide (Bz2O2) as a free-radical initiator over a wide composition and conversion range. The copolymer composition was determined from nitrogen content. Taking into consideration a low conversion value in the copolymerization reaction (to 20 %), monomer reactivity ratios were estimated using the Kelen-Tüdos graphical method, and were found to be r1=0.26 (NtBA) and r2=7.05 (EDMA). In order to get a better insight into the mechanism of nanoporous copolymers of NtBA with EDMA preparation by thermal degradation of copolymers of N-acryl-N, N'-di-tert-butylurea (A-DitBuU) with EDMA, nonporous copolymers (model compound) of the same chemical structure and composition were prepared by performing copolymerization of NtBA with EDMA up to the high conversion of 97-100 %. Thermal behavior of nanoporous and nonporous copolymers of NtBA with EDMA was studied.

N-tert-butylacrylamide; ethylene glycol dimethacrylate; copolymerization; model compound

nije evidentirano