Issue 21, 2012

Preparation and photo-oxidative functions of poly(ethylene-co-methacrylic acid) (PE-co-MAA) nanofibrous membrane supported porphyrins

Abstract

Surface functionalized poly(ethylene-co-methacrylic acid) (PE-co-MAA) nanofibrous membranes were successfully prepared and applied as solid supports to immobilize photosensitizers. Several activation agents were used to facilitate the surface functionalization of PE-co-MAA nanofibrous membranes, and PCl5 was found to be the most efficient one to activate surface carboxylic acid groups. Three spacers with variable lengths were introduced to the membrane surfaces prior to immobilizations of protoporphyrin IX (PPIX), a photosensitizer. The results revealed that the membranes with longer spacer chain incorporated more photoactive macrocyclic compounds, and the supported PPIX provided a more powerful catalytic effect on the photo-oxidation of 1,5-dihydroxynaphthalene. After five times of repeated catalytic reactions, the catalytic activity of the solid supported PPIX was maintained at 80% of the original power, and the membrane morphology was intact. The nanofibrous membrane supported photosensitizer provided high catalytic activity, easy handling, good durability and reusability.

Graphical abstract: Preparation and photo-oxidative functions of poly(ethylene-co-methacrylic acid) (PE-co-MAA) nanofibrous membrane supported porphyrins

Article information

Article type
Paper
Submitted
20 Dec 2011
Accepted
14 Mar 2012
First published
17 Apr 2012

J. Mater. Chem., 2012,22, 10581-10588

Preparation and photo-oxidative functions of poly(ethylene-co-methacrylic acid) (PE-co-MAA) nanofibrous membrane supported porphyrins

J. Zhu and G. Sun, J. Mater. Chem., 2012, 22, 10581 DOI: 10.1039/C2JM16703D

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