1. RAMAN IMAGING INVESTIGATION ON PAA-CLOTRIMAZOLE SYSTEM. Authors: MIHAI TODICA, SIMION AŞTILEAN, TRAIAN ŞTEFAN, CORNEL-VIOREL POP.2. INVESTIGATION OF THE EFFECTS OF DEGRADATION OF HIGH DENSITY POLYETHYLENE BY 13C NMR SPECTROSCOPY AND 1H RELAXOMETRY. Authors: MIHAI TODICA, ANNE BAUDOUINE, RADU FECHETE, MIHAELA POPA, DUMITRIȚA MOLDOVAN.3. UV ABSORPTION PROPERTIES OF DOPED PVA TiO2 MEMBRANES . Authors: SIMION SIMON, TRAIAN ŞTEFAN, MIHAELA POP, CORNEL VIOREL POP, LUCIANA UDRESCU, MIHAI TODICA.4. OBSERVATION OF UV-VIS ABSORPTION PROPERTIES OF SOME PVA MEMBRANES WITH SILVER NANOPARTICLES. Authors: MIHAI TODICA, TRAIAN ŞTEFAN, CORNEL VIOREL POP, MIHAELA POP, BOGDAN MARTA, LUCIANA UDRESCU.5. XRD AND IR INVESTIGATIONS OF SOME COMMERCIAL POLYSTYRENE SAMPLES THERMALLY DEGRADED. Authors: CARMEN NICULĂESCU, LOREDANA OLAR, RĂZVAN STEFAN, MIHAI TODICA, CORNEL-VIOREL POP.6. FLUORESCENCE INVESTIGATION OF SOME POLYSTYRENE SAMPLES THERMALLY DEGRADED. Authors: MIHAI TODICA, CLAUDIU LUNGU, IOANA BREZESTEAN, CARMEN NICULĂESCU.