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Functionalized poly(butylene succinate) (PBS) samples were prepared by a post-polymerization method based on the coupling reaction between TEMPO derivatives bearing different functionalities and PBS macroradicals generated by H-abstraction using a peroxide. 4-Benzoyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl (BzO-TEMPO) and 4-(1-naphthoate)-2,2,6,6-tetramethylpiperidine-1-oxyl (NfO-TEMPO), a pro-fluorescent nitroxide, were successfully grafted on PBS, as revealed by MALDI TOF MS and UV-Vis spectroscopy. The functionalization degrees were accurately determined by UV-Vis analysis and confirmed by 1H-NMR spectroscopy. The grafting site was identified by combining theoretical calculations with experimental evidence. This evidence was collected by both EPR analysis of a functionalized sample subjected to controlled heating in the EPR cavity, and by 1H-NMR spectroscopy. Our …
Royal Society of Chemistry
Publication date: 
1 Jan 2014

Francesca Cicogna, Serena Coiai, Paola Rizzarelli, Sabrina Carroccio, Cristian Gambarotti, Ilaria Domenichelli, Chengcheng Yang, Nadka Tz Dintcheva, Giovanni Filippone, Calogero Pinzino, Elisa Passaglia

Biblio References: 
Volume: 5 Issue: 19 Pages: 5656-5667
Polymer Chemistry