engleski

Synthesis of N-Acryl-N, N’ -di-tert-Butylurea and Copolymerization with Ethylene Glycol Dimethacrylate

Synthesis and free-radical initiated copolymerization of N-acryl-N, N’ -di-tert-butylurea (A-DitBuU) with ethylene glycol dimethacrylate (EDMA) are described. The A-DitBuU monomer was prepared by the condensation of acrylic acid to the N, N’ -di-tert-butylcarbodiimide (DitBuC) at room temperature. Copolymers of A-DitBuU with EDMA of different monomer to monomer ratios in the feed were prepared in the presence of dibenzoyl peroxide (Bz2O2) in butanone at 70°C for 48 h up to a high conversion. The obtained crosslinked copolymers are insoluble in organic solvents. Copolymers thermal decomposition resulted in separation of tert-butylisocyanate (C4H9NCO) in the temperature range between 180 and 280°C and by the formation of the thermally stable molecularly imprinted copolymers of N-acryl-N-terc-butylamide (A-tBuA) with EDMA.

N-acryl-N; N’ -di-tert-butylurea; poly(N-acryl-N; N’ -di-tert-butylurea-co-ethylene glycol dimethacrylate); thermal degradation; tert-butylisocyanate; poly(N-acryl-N-terc-butylamide-co-ethylene glycol dimethacrylate)

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