PENGARUH KONSENTRASI AGEN SULFONASI TERHADAP KARAKTERISTIK POLISTIREN HASIL ISOLASI STYROFOAM

• Main Author: Theodora, Maria
• Format: Final Project
• Language: Indonesia
• Subjects: Kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/71917
• Institution: Institut Teknologi Bandung

The increasing in energy demand and lack of energy resource force research about fuel cell which can produce energy efficiently. One of these fuel cells is PEMFC (Proton Exchange Membrane Fuel Cell). PEMFC is a system which works by changing chemical energy to electric, and act as a proton transfer membrane. In this research polystyrene was used to make PEMFC, it was isolated from styrofoam. Beside that, polyblend membrane from sulfonated polystyrene and lignosulfonate was also made. Polystyrene sulfonation was done by using acetyl sulfate with variation in concentrations. The purpose of sulfonation is to add SO3H group in polystirene, so it can transfer H+ ions. Polyblend membrane was made by mixing PSS and LS (5%) with variation in sulfonated degree of polystyrene. The membrane was characterized by FTIR analysis, swelling, ion exchange capacity, conductivity, mechanical analysis, TGA/DTA, XRD, and viscosity. Analysis results show that polyblend from sulfonated polystyrene (acetate anhydride 1,32 ml) and lignosulfonate 5% is the optimal composition.