论文信息 - LETTER TO THE EDITOR: Photodecomposition and characterisation of polymers by UV-laser interaction

LETTER TO THE EDITOR: Photodecomposition and characterisation of polymers by UV-laser interaction

Ultraviolet-laser-induced emission from various commercial and additive-free polymers were characterised. The olefinic polymers gave a strong Raman emission line corresponding to the H-C-H stretching vibration (2875 cm-1) along with a broad fluorescence which was common to all the samples. The fluorescence was attributed to the chromophoric impurities inherently present in all the polymers. Quenching of emission under UV irradiation was resulted to the processes of transformation of the chromophores through excited-state reaction and the formation of links between polymer chains.

S. R. Ahmad

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