STUDI PENUMBUHAN MEMBRAN POLYVINYL ALCOHOL (PVA) udDENGAN VARIASI KONSENTRASI PVA MENGGUNAKAN METODE udSPIN COATING DI ATAS LAPISAN ELEKTRODA PLATINUM ud ud

摘要

udABSTRACT ud udGROWTH STUDY OF POLYVYNYL ALCOHOL (PVA) MEMBRANCE udWITH VARIATION OF PVA CONCENTRATION USING SPIN COATING udMETHODS ON THE PLATINUM ELECTRODE LAYER ud ud udBy udRina Agus Wiliastuti udM0202040 ud udThe aim from this research is to know characteristics of Polyvynyl Alcohol ud(PVA) membrance layer they are resistance and absorbance at the different PVA udconcentration grown on the Platinum electrode. The variation of PVA udconcentration consist of 33%wtPVA, 20wt%PVA , and 14wt%PVA. The growth udof PVA membrance using spin coating with angular velocity is 3500 rpm, at ud33%wtPVA get result maximum absorbance is 4,0 at spin time 2,5 minutes, udresistance at the gap 1,0 mm is (0,81 ± 0,09)x108udΩ and at the gap 1,2 mm is (6,1 ± ud0,2) x 108udΩ, at 20wt%PVA get result maximum absorbance is 3,3 at spin time 2 udminutes, resistance at the gap 1,0 mm is (3,4 ± 0,1) x 108udΩ and at the gap 1,2 mm udis (14,7 ± 0,5)x108udΩ, and 14wt%PVA get result maximum absorbance is 3,1 at udspin time 1,5 minutes, resistance at the gap 1,0 mm is (7,3 ± 0,2) x 108udΩ and at udthe gap 1,2 mm is (18 ± 1)x108udΩ.