Influence of Microwave Synthesis Dissolution Technique on the Kinetics Properties of Polymer Dope Solution

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The application of Microwave Irradiation has become a frequent heating source in organic and inorganic materials synthesis. Inspired by this vast achievement, the use of microwave irradiation is highly studied for polymer synthesis. The influence of modified microwave system on the solubility and kinetics properties of the polyethersulfone (PES) dope solution has been investigated. A modified microwave (MW) assisted closed heating system was applied to prepare the PES dope solution in single solvent; dimethylformamide (DMF) and mixture of two solvents DMF/acetone for membrane fabrication. Providentially, most of the synthetic polymeric membrane materials are polar and dipolar which is a very important factor in microwave processing. New MW systems have given incredible properties in terms of viscosity, shear stress, shear rate and yield stress of polymer dope solutions. The results revealed that MW assisted pure PES solution exhibits pseudoplastic and Newtonian behaviour respectively. However, PES solution containing the two solvent system exhibits dilatants behaviour, which obeys the power-law. The apparent viscosity of the PES dope solutions prepared using the DMF is lower as compared to those prepared using the DMF/acetone. Rheological properties measured include apparent viscosity at various shear rates. Subsequently the flow behaviour (n) and consistency index (k) is determined.
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Dope Solution; Rheology; Polyethersulfone; Mixture of Solvents

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L. Y.Lafreniere, D. F.Talbot, T. Matsuura, and S. Sourirajan, Effect of polyvinylpyrrolidone additive on the performance of polyethersulfone ultrafiltration membranes, Ind. & Eng. Chem. Res. 26 (1987) 2385-2389

V. Laninovic, Relationship between Type of Nonsolvent additive and properties of polyethersulfone membranes, Desalination 186 (2005) 39-46

K. Liang, J. Grebiwicz, E. Valles, F. Karasz, W. J. Macknight, Thermal and rheological properties of miscible polyethersulfone/polyimide blends, J. of Poly. Sci. Part B Poly. Phy. 30 (1992) 465-475

R. Guan, H. Dai, C. Li, J. Liu, and J. Xu, Effect of casting solvent on the morphology and performance of sulfonated polyethersulfone membranes. J. Membr. Sci. 277 (2006): 148-156

X. Maio, S. Sourirajan and W. W. Y. Lau, Production of polyethersulfone hollow fiber ultrafiltration membranes ii, effects of fiber extrusion pressure and PVP concentration in the spinning solution. Sep. Sci.Tech. 31(1996) 327-337

A. Idris, Norashikin Mat Zain and M.Y. Noordin, Synthesis, characterization and performance of asymmetric polyethersulfone (PES) ultrafiltration membranes with polyethylene glycol of different molecular weights as additives, Desalination 207 (2007) 324-339

Z. L. Xu, F. A. Qusay, Effect of polyethylene glycol molecular weights and concentrations on polyethersulfone hollow fiber ultrafiltration membranes, J. Appl. Polym. Sci. 91 (2004) 3398-3407

B. T. Sancheza, R. I. Ortiz-Basurtoa and E. B. L Fuenteb, Effect of nonsolvents on properties of spinning solutions and polyethersulfone hollow fiber ultrafiltration membranes, J. Membr. Sci. 152 (1999) 19-28.

J. R. Hwang, S. H. Koo, J. H. Kim, A. Higuchi, and T. M. Tak, Effects of casting solution composition on performance of poly(ether sulfone) membrane, J. Appl. Polym. Sci. 60 (1996) 1343-1348;2-j

J. H. Kim and K. H. Lee, Effect of PEG additive on membrane formation by phase inversion, J. Membr. Sci. 138 (1998) 153-163

B. K. Chaturvedi, A. K. Ghosh, V. Ramachandhran, M. K. Trivedi, M. S. Hanra and B. M. Misra, Preparation, characterization and performance of polyethersulfone ultrafiltration membranes, Desalination 133(2001) 3- 40

Z. L. Xu, and F. A. Qusay, Effect of polyethylene glycol molecular weights and concentrations on polyethersulfone hollow fiber ultrafiltration membranes, J. Appl. Polym. Sci. 91(2004) 3398-3407

S. Munari, A. Bottino, G. Capannelli, P. Moretti, and P. Bon, Preparation and characterization of polysulfone polyvinylpyrrolidone based membranes, Desalination 70(1-3) (1988) 265-275

Z. Zhang, Y. Y. Wang, C. L. Wang and H. Xiang, Synthesis and characterization of a pva/licl blend membrane for air dehumidification, J. Membr. Sci. 308 (2008) 198-206.

H. J. Lee, J. H. Won, and Y. S. Kanga, Solution properties of poly(amic acid)-NMP containing LiCl and their effects on membrane morphologies, J. Membr. Sci. 196 (2002) 267-277

I. Ani and A. Iqbal, Viscosity behavior of microwave-heated and conventionally heated poly(ether sulfone) / dimethylformamide / lithium bromide polymer solutions, J. Appl. Polym. Sci. 108(2007) 302-307

H. Ohya, V. Vladislav, Kudryavtsev, I. Svetlana, Polyimide membranes: applications, fabrications, and properties. (Gordon & Breach, 1996)

C. Barth, M. C. Gonçalves, A. T. N. Pires, J. Roeder, and B. A. Wolf, Asymmetric polysulfone and polyethersulfone membranes: effects of thermodynamic conditions during formation on their performance, J. Membr. Sci. 152 (2000) 19-28

D. R. .Baghurst and D. M. P. Mingos, Superheating effects associated with microwave dielectric heating, J Chem Soc Chem Commun, (1992) 674-677

H. M. Kingston and J. B.Jassie, Introduction to Microwave Sample Preparation, (American Chemical Society,1988).

C. r. Strauss and R. W. Trainor, Developments in microwave assisted organic chemistry, Aust J Chem, 48 (1995) 1665-1692.

L. Perreux and A. Loupy, (2001), A Tentative Rationalization of Microwave Effects in Organic Synthesis According to the Reaction Medium and Mechanistic considerations, Tetrahedron. 57(13): 9199-20105.

R. Hoogenboom, S. U. S. Schubert, Microwave-assisted polymer synthesis: recent developments in a rapidly expanding field of research, Macromol. Rapid Commun. (2007) 28, 368

I. Ani, A. Iqbal, and M. Y. Noordin, Microwave Assisted Polymer Dissolution Apparatus for Membrane Production, Malaysian Patent PI20080270.

D. M. Koenhen and C. A. Smolders, The Determination of Solubility Parameters of Solvents and Polymers by means of Correlations with Other Physical Quantities, Journal of Applied Polymer Science vol. 19, (1975) 1163-1179

R. B. Bird, Armstrong, R.C.; Hassager, O. Dynamics of Polymeric Liquids. (Wiley, New York, 1987)

A. Bottino, G.Capanelli, S. Munari, and A. Turturro, High Performance Ultrafiltration Membranes Cast from LiCl Doped Solutions. Desalination 68(2-3) 167-177.

A. Botvay, A. Mathe, L. Poppl, J. Rohonczy, F. Kubatovics, Preparation and Characterization of Brominated Polyethersulfones, J. Appl. Polym. Sci., 74 (1999) 1-113;2-7

Baker, R.W., Membrane technology and applications, (Wiley, New York 2004)

R. Kesting, and Irvine, Synthetic Polymeric Membranes, (Wiley & Sons, 1985).


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