Molecular Weight Distribution of Polystyrene Solution With Solvent Density in Ultrasound Induced High Pressure Reactor

Hyung-Jin Kim; In-Kwon Hong

Journal of Industrial and Engineering Chemistry, Vol.4, No.1, 39-43, March, 1998

Department of Environmental Engineering, Kimpo College, Kimpo 415-870, Korea
¹Department of Chemical Engineering, Dankook University, Seoul 140-714, Korea

Molecular weight distribution of polystyrene fraction became narrow with the increase of solvent density in ultrasound induced high pressure reactor. The ultrasound induced high pressure reactor was filled with 0.5 w/v% polystyrene parent polymer and tetrahydrofuran, and then it was pressurized from 500 psi to 4000 psi at the intervals of 500 psi by high pressure liquid pump at the rate of 20 mL/min. And ultrasound was irradiated for 10 minutes at each pressure, and the extracts were analyzed by GPC. The molecular weight distribution of the extracts was characterized by the distribution function. The average molecular weight and polydispersity of polystyrene fraction were decreased with pressure, it was able to fractionate parent polymer and regulate polydispersity by pressure in ultrasound induced high pressure reactor.

[References]

Richard WT, Loomis AL, J. Am. Chem. Soc., 49, 3086 (1927)
Kruus P, Lawrie JAG, O'Neill ML, Ultrasonics, 26, 352 (1988)
Mason TJ, Lorimer JP, "Sonochemistry: Theory, Applications and Uses of Ultrasound in Chemistry," Ellis Horwood, Chichester (1990)
Smith WB, Temple HW, J. Phys. Chem., 72, 4613 (1968)
Donaldson DJ, Farrington MD, Kruus P, J. Phys. Chem., 83, 3130 (1979)
Kruus P, McDonald D, Patraboy TJ, J. Phys. Chem., 91, 3041 (1987)
Mason TJ, "Chemistry with Ultrasound," Elsevier Applied Science, N.Y. (1990)
Cantow MJR, "Polymer Fractionation," Academic Press, N.Y. (1967)
Reid RC, Prausnitz JM, Poling BE, "The Properites of Gases & Liquids," 4th ed., McGraw-Hill, N.Y. (1987)
Jeon BJ, Park YJ, Yoon YS, Jung IH, J. Korean Ind. Eng. Chem., 6(5), 803 (1995)
Kim HJ, Park KA, Jung IH, Hong IK, J. Korean Ind. Eng. Chem., 6(1), 155 (1995)

[Referenced By]

[Related Articles]

[1] Richard WT, Loomis AL, J. Am. Chem. Soc., 49, 3086 (1927)

[2] Kruus P, Lawrie JAG, O'Neill ML, Ultrasonics, 26, 352 (1988)

[3] Mason TJ, Lorimer JP, "Sonochemistry: Theory, Applications and Uses of Ultrasound in Chemistry," Ellis Horwood, Chichester (1990)

[4] Smith WB, Temple HW, J. Phys. Chem., 72, 4613 (1968)

[5] Donaldson DJ, Farrington MD, Kruus P, J. Phys. Chem., 83, 3130 (1979)

[6] Kruus P, McDonald D, Patraboy TJ, J. Phys. Chem., 91, 3041 (1987)

[7] Mason TJ, "Chemistry with Ultrasound," Elsevier Applied Science, N.Y. (1990)

[8] Cantow MJR, "Polymer Fractionation," Academic Press, N.Y. (1967)

[9] Reid RC, Prausnitz JM, Poling BE, "The Properites of Gases & Liquids," 4th ed., McGraw-Hill, N.Y. (1987)

[10] Jeon BJ, Park YJ, Yoon YS, Jung IH, J. Korean Ind. Eng. Chem., 6(5), 803 (1995)

[11] Kim HJ, Park KA, Jung IH, Hong IK, J. Korean Ind. Eng. Chem., 6(1), 155 (1995)