Preparation of Polyurethane Membrane Dressing with Various Water Vapor Transmissions

Byung-Ok Jung; Tae Jeong Kim; Sang Soon Park; Suk-Jin Chung; Jae-Jin Kim

Journal of Industrial and Engineering Chemistry, Vol.8, No.1, 57-63, January, 2002

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Preparation of Polyurethane Membrane Dressing with Various Water Vapor Transmissions

Byung-Ok Jung, Tae Jeong Kim, Sang Soon Park¹, Suk-Jin Chung^†, and Jae-Jin Kim²

School of Applied Chemistry and Chemical Engineering, SNUT, Seoul 139-743, Korea
¹Institute of Technology, ChemEnTech Inc., Seoul 139-701, Korea
²Biomaterial Resarch Center, Division of Life Science, KIST, Seoul 130-650, Korea

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The morphology of polyurethane (PU) membranes cast from various coagulants was investigated on the basis of the precipitation values, PV, and solubility parameter, δ (h), values of various coagulants. The PV decreased with an increasing δ (h) of the coagulant. It was found that membranes cast from coagulants with a higher δ (h) h value (or lower PV) were more porous. These results were explained based on the mechanism related to the precipitation rate of the polymer, which was also supported by measuring the PU coagulation rate with various coagulants. A higher water vapor transmission, WVT, was also obtained for membranes cast from coagulants with a higher δ h (or lower PV) due to the larger size of the voids and higher porosity of the membrane.

Keywords:polyurethane;wound dressing;precipitation value;solubility parameter;water vapor transmission

[References]

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Koenhen DM, Mulder MHV, Smolders CA, J. Appl. Polym. Sci., 21, 199 (1977)
Formmer MA, Lancet D, "Reverse Osmois Membrane Research," Plenum, New York (1972)
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Smolders CA, Reuvers AJ, Boom RM, Wienk IM, J. Membr. Sci., 73, 259 (1992)
Pinnau I, Koros WJ, J. Membr. Sci., 71, 81 (1992)
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Pesek SC, Koros WJ, J. Membr. Sci., 81, 71 (1993)
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Yao CW, Burford RP, Fane AG, Fell CJD, J. Membr. Sci., 38, 113 (1988)
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Wang D, Li K, Sourirajan S, Teo WK, J. Appl. Polym. Sci., 50, 1693 (1993)
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Rabek JF, "Experimental Methods in Polymer Chemistry," John Wiley and Sons, Inc., New York (1980)
Bottino A, Camera-Roda G, Capanneli G, Munari S, J. Membr. Sci., 57, 1 (1991)
Park JS, Kim SK, Lee KH, J. Ind. Eng. Chem., 6(2), 93 (2000)
Yoo SH, Jho JY, Won J, Park HC, Kang YS, J. Ind. Eng. Chem., 6(2), 129 (2000)
Song KC, Kim SK, J. Ind. Eng. Chem., 6(6), 403 (2000)

[Related Articles]

[1] Loeb S, Sourirajan S, Advan. Chem. Ser., 38, 117 (1962)

[2] Kunst B, Sourirajan S, J. Appl. Polym. Sci., 14, 1983 (1970)

[3] Strathmann H, Scheible P, Baker RW, J. Appl. Polym. Sci., 15, 811 (1971)

[4] Sarbolouki MN, J. Appl. Polym. Sci., 29, 743 (1984)

[5] Strathmann H, Kock K, Amar P, Baker RW, Desalination, 16, 179 (1975)

[6] Koenhen DM, Mulder MHV, Smolders CA, J. Appl. Polym. Sci., 21, 199 (1977)

[7] Formmer MA, Lancet D, "Reverse Osmois Membrane Research," Plenum, New York (1972)

[8] Lemoyne C, Friedrich C, Halary JL, Noel C, Monnerie L, J. Appl. Polym. Sci., 25, 1883 (1980)

[9] Cuillofin M, Lemoyne L, Noel L, Monnerie L, Desalination, 21, 165 (1977)

[10] Frommer MA, Matz R, "Office of Saline Water, Res. Dev. Prog," Rept. No. 774, May (1972)

[11] Kang YS, Kim HJ, Kim UY, J. Membr. Sci., 60, 219 (1991)

[12] Smolders CA, Reuvers AJ, Boom RM, Wienk IM, J. Membr. Sci., 73, 259 (1992)

[13] Pinnau I, Koros WJ, J. Membr. Sci., 71, 81 (1992)

[14] Koros WJ, Fleming GK, J. Membr. Sci., 83, 1 (1993)

[15] Pesek SC, Koros WJ, J. Membr. Sci., 81, 71 (1993)

[16] Lai JY, Lin FC, Wang CC, Wang DM, J. Membr. Sci., 118(1), 49 (1996)

[17] Yao CW, Burford RP, Fane AG, Fell CJD, J. Membr. Sci., 38, 113 (1988)

[18] Wang DM, Lin FC, Chiang JC, Lai JY, J. Membr. Sci., 141(1), 1 (1998)

[19] Wang D, Li K, Sourirajan S, Teo WK, J. Appl. Polym. Sci., 50, 1693 (1993)

[20] Brandrup J, Immergut EH, "Polymer Handbook," 3rd ed., John Wiley & Sons, New York (1989)

[21] Rabek JF, "Experimental Methods in Polymer Chemistry," John Wiley and Sons, Inc., New York (1980)

[22] Bottino A, Camera-Roda G, Capanneli G, Munari S, J. Membr. Sci., 57, 1 (1991)

[23] Park JS, Kim SK, Lee KH, J. Ind. Eng. Chem., 6(2), 93 (2000)

[24] Yoo SH, Jho JY, Won J, Park HC, Kang YS, J. Ind. Eng. Chem., 6(2), 129 (2000)

[25] Song KC, Kim SK, J. Ind. Eng. Chem., 6(6), 403 (2000)