Issue 12, 2010

Polymer–microporous host interactions probed by photoluminescence spectroscopy

Abstract

Zeolites NaY and ZSM-5 were used as hosts for styrene polymerization after ion-exchange with europium ions. The parent and hybrid, polystyrene coated Eu-NaY (Eu-NaY/PS) and Eu-ZSM-5 (Eu-ZSM-5/PS) zeolites were investigated by using thermal analysis, SEM, PXRD, FT-IR, DR-UV/Vis, steady state and time-resolved photoluminescence spectroscopy. FT-IR spectra evidenced for the interaction between the zeolitic hosts and polystyrene while the PXRD spectra supported for the presence of the polymer inside the channels/pores of Eu-NaY/PS and Eu-ZSM-5/PS materials. The optical properties of Eu-NaY/PS and Eu-ZSM-5/PS were significantly changed relative to those of the parent zeolites, giving further evidence for the presence of polymer inside zeolites. An interesting case is presented by NaY zeolite: following styrene polymerization, the polymer interacted selectively with one of the two main species co-existing inside zeolite while for ZSM-5 a similar effect was not observed.

Graphical abstract: Polymer–microporous host interactions probed by photoluminescence spectroscopy

Supplementary files

Article information

Article type
Paper
Submitted
28 Oct 2009
Accepted
06 Jan 2010
First published
03 Feb 2010

Phys. Chem. Chem. Phys., 2010,12, 3031-3037

Polymer–microporous host interactions probed by photoluminescence spectroscopy

C. Tiseanu, V. I. Parvulescu, B. Cojocaru, V. A. Lorenz-Fonfria, M. Kumke, A. Gessner and I. Enculescu, Phys. Chem. Chem. Phys., 2010, 12, 3031 DOI: 10.1039/B922591A

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