Styrene-hydroxyethyl methacrylate copolymer-supported porphyrinatomanganese(III) complexes: synthesis and catalytic cyclohexane hydroxylation with molecular oxygen

Abstract

Two new styrene-hydroxyethyl methacrylate copolymers containing immobilized porphyrinatomanganese(III) were prepared and characterized as microspheres by SEM, UV-Vis, FT-IR, and TG-DTG. Their catalytic activities have been investigated for the hydroxylation of cyclohexane in the presence of molecular oxygen under mild conditions. The copolymer microspheres proved to be more efficient catalysts than the corresponding nonsupported porphyrinatomanganese(III) complex. The alkylated polymer microspheres with porphyrinatomanganese(III) had the highest catalytic activity, which may be attributable to the hydrophobic microenvironment around the porphyrinatomanganese(III) centers, resulting from the alkyl groups.

Renewable Eugenol-Based Polymeric Oil-Absorbent Microspheres: Preparation and Oil Absorption Ability

“…The main polymer structure was found to decompose in the temperature range of 350–480 °C. The present microspheres show higher thermal stability than other acrylate-based polymeric microspheres (310–380 °C) reported by Ye et al . DSC analysis was also performed on the microspheres, and the relevant DSC curve is presented in Figure S4 of the Supporting Information.…”