Pengukuran solubilitas n-amylalkohol dalam poly (n-butyl methacrylate) dan polyisobutylene menggunakan metode piezoelectric-quartz crystal microbalance sorption

Gede Wibawa, Rica Widi Lestari, Sofia Wardhani

Abstract


The Piezoelectric Quartz Crystal Microbalance (QCM) method was used to measure the solubilities of n-amylalcohol in poly (n-butyl methac1ylate) and polyisobutylene at temperatures of 333.15 K, 353.15 K and 353.15 K. The crystals used were 5 MHz, AT-Cut, 5.5 mm in diameter and 0.3 mm in thick. Reliability of the measurements was comfirmed by comparing the present data with the literature data for the system of benzene-polyisobutylene at temperature 338.15K. The solubilities n-amyl alcohol in polyisobutylene were undectedable in the range of temperature experiments by the present apparatus because of the low solubility. For the solubilities of n-amyl alcohol in ploy (n-butyl methacryalate) the higher temperature, the lower solubility and the experimental data could be correlated by the UNIQUAC equation with average absolute deviation between experimental and calculated solvent activities of 3.8%. 

Keywords: Solubility, Quartz Crystal Microbalance, Solvent, Polymer

 

Abstrak

Dalam penelitian ini, metode Piezoelectric Quartz Crystal Microbalance (QCM) digunakan untuk mengukur kelarutan pelarut n-amylalkohol dalam polimer poly (n-butyl methacrylate) dan polyisobutylene pada temperatur 333,15 K, 343,15 K dan 353,15 K. Kristal yang digunakan adalah jenis AT-Cut 5 MHz, diameter 5,5 mm dan ketebalan 0,3 mm. Reliabilitas dari pengukuran di tes dengan membandingkan hasil pengukuran dengan data literatur untuk sistem benzene­polyisobutylene pada temperatur 338, I 5K. Kelarutan n-amyl alkohol dalam polyisobutylene tidak dapat terdeteksi pada range temperatur eksperimen dengan peralatan yang ada karena kelarutannya rendah. Untuk kelarutan n-amylalkohol dalam poly(n-butyl methacrylate), semakin besar suhu, kelarutannya semakin rendah dan data eksperimen dapat dikorelasikan menggunakan persamaan UNIQUAC dengan rata-rata deviasi ahsolut sebesar 3,8%.

Kata Kunci: Kelarutan, Quartz Crystal Microbalance, Pelarut, Polimer


Full Text:

PDF

References


Abrams, S. dan Prausnitz, J. M., (197S), "Statistical Thermodynamics of Liquid Mixtures: A New Expression for the Excess Gibbs Energy of Partly or Completely Miscible Systems", AIChE J. 21, hal.116-128.

Boudouris, D., Prinos, J., Bridakis, M., Pantoula, M. dan Panayiotou,. C., (2001), "Measurement of HFC-22 and HFC-152 a sorption by Polymers using a Quartz Crystal Microbalance", Ind. Eng. Chem. Res.,, 40, hal. 604-611.

French, R.N. dan Koplos, G. J., (1999), ''Activity Coefficients of Solvents in Elastomer Measured with a Quartz Crystal Microbalance", Fluid Phase Equilib., IS8- 160, hal. 879-892.

Lieu, J.G., Prausnitz, J. M. dan Gauthier, M.,(2000), "Vapor-liquid Equilibria for Binary Solutions Arborescent and Linear Polystyrenes", Polymer, 41, hal. 219-224

Maloney, D. P. dan Prausnitz, J. M., (1976), "Solubilities of Ethylene and other Organic Solutes in Liquid, Low-density Polyethylene in The Region 12411 to 30011C" AIChEJ., 22, hal. 74-82.

Masuoka, H., Murashige, N. dan Yorizane, M., ( 1984), "Measurement of Solubility of Organic Solvents in Polyisobutylene using the Piezoelectric-Quartz Sorption Method", Fluid Phase Equilib., 18, haiiSS- 169.

Poling, B. E., Prausnitz, J. M. dan O'Connel, J.P., (200 I), "The Properties of Gas and Liquids", fifth ed., The McGraw-Hill Companies Inc., USA, hal.7.3-7.7.

Sauerbrey, G., ( 19S9), "Verwendung von schwingquarzen zur schichten und zur'', Z. Phys .. ISS, hal. 206-222.

Tsonopoulus, C.. (1974), ''An Empirical Correlation of Second Virial Coefficients" AIChEJ., 20, hal. 263.

Wen, H.; Elbro, H. S. dan Alessi, P. Polymer Solution Data Collection Part 2+3; DECHEMA Chemistry Data Series; DECHEMA: Frankfurt am Main, Germany, 1992

Wibawa, G., Takahashi, M., Sato, Y.: Takishima, S. danMasuoka, H., (2002a), "Solubility of Seven Nonpolar Organic Solvents in Four Polymers using The Piezoelectric-quartz Sorption Method" J.

Chern. Eng. Data, 47, hal. SI8-S24

Wibawa, G., Hatano, R., Sato, Y..Takishima, S. dan Masuoka, H., (2002b), "Solubility of II Polar Organic Solvents in Four Polymers using The Piezoelectric­ Quartz Sorption Method", J. Chem. Eng.

Data, 47, hal. I 022-1029

Wong, H., C., Campbell, S., W. dan Bhethanabotla, V. R .. ( 1997), "Sorption of Benzene, Toluene and Chloroform by Poly(styrene) at 298.15 K and 323.15 K using a Quartz Crystal Balance", Fluid Phase Equilib., 139, hal.371-389




DOI: http://dx.doi.org/10.5614/jtki.2005.4.3.1

Refbacks

  • There are currently no refbacks.


Copyright (c) 2016 Jurnal Teknik Kimia Indonesia

Jurnal Teknik Kimia Indonesia (JTKI) published by Asosiasi Pendidikan Tinggi Teknik Kimia Indonesia (APTEKIM)

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.