SYNTHESIS AND CHARACHERIZATION TERPOLYMER (ACRYLAMIDE/ACRYLAMIDO METHYLPROPANE SULFONATE/VINILNAFTALENE) FOR ENHANCED OIL RECOVERY (EOR) APPLICATION

• Main Author: LEONARDUS ( NIM : 90510001); Pembimbing : Prof. Dr. Ing. Cynthia Linaya Radiman, MARIO
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/16369
• Institution: Institut Teknologi Bandung

Terpolymer acrylamide/acrylamido methylpropane sulphonate/ vinylnaphthalene (PAAmV) was synthesized by emulsion copolymerization reaction of acrylamide (A), sodium 2-acrylamido-2-methylpropane sulphonate (NaAMPS) and vinyl-naphthalene (VN). The copolymerization reaction was carried out at 50 oC and pH 6-7 under an inert atmosphere using sodium dodecylsulphate as emulsifier and K2S2O8 as initiator. It was found that the copolymerization of those monomers using a mole ratio of A : NaAMPS: VN equal to 17.60: 2.0425: 0.145 resulted in PAAmV with an optimum intrinsic viscosity of 11.468 dL/g and an average-viscosity molecular mass of 2.539x106 g/mol. The FTIR spectrum shows two specific peaks at 1655 cm-1 and 1685 cm-1, indicating the stretching vibration of -NH and C=O functional groups, respectively. The presence of S=O groups was confirmed by two peaks at 1190 cm-1 and 1040 cm-1, attributed to symmetric stretching vibration and strain vibration, respectively. The bending vibration of phenyl C-H was shown at 736 cm-1 and strain vibration at 3198 cm-1. The rheological properties of polymers were carried out to determine the effect of temperature, shear rate and salinity on the viscosity of the PAAmV. The concentrations of PAAmV solutions used for these measurements were 1000, 2000 and 3000 ppm. The results showed that no decrease in viscosity has been detected in the solution of PAAmV 2000 ppm at 50-90 oC, hence, the thermal resistance of that solution was higher than the other concentrations. The thermal stability of PAAmV was also compared to polyacrylamide (PAM), hydrolyzed polyacrylamide (HPAM) and a commercial polymer known as HYBO. The viscosity of PAAmV at 30 oC was lower than HPAM and HYBO, but the viscosity of those polymers were almost equal at 90 oC. This result suggests that PAAmV had a fairly good thermal stability. The salinity resistance measurements were carried out by adding salts (NaCl, KCl and CaCl2) into the polymer solution. The results showed that the PAAmV had a higher resistance to salinity than HYBO. <br /> <br /> <br /> <br /> <br />