Polythiourea (PTU) polymer was prepared in the laboratory at room temperature from equimolar quantities of 4,4-oxydianiline (ODA) 98% and p-phenylene diisothiocyanate (PDTC) 97% purity both from Sigma Aldrich (Singapore). Dimethyl sulfoxide (DMSO) > 99.9% purity from RCI Labscan Ltd. (Bangkok, Thailand) was used as solvent for the synthesis of PTU and component of the dope solution for membrane fabrication. Cupric acetate monohydrate (Cu(CH3COO)2·H2O) or Cu(OAc)2·H2O 98% from LOBA Chemie Pvt. Ltd. (Mumbia, India) dissolved in distilled water was used for the simultaneous NIPS and CIPS reaction. All of the above chemicals were used as received without further treatment.
4 4 oxydianiline oda
Manufactured by Merck Group
Sourced in Singapore, Japan
4,4-oxydianiline (ODA) is a chemical compound used in the production of various laboratory equipment and materials. It serves as a key ingredient in the manufacturing process of these items. The core function of ODA is to provide specific properties and characteristics required for the intended applications of the lab equipment.
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Lab products found in correlation
2 protocols using 4 4 oxydianiline oda
1
Polythiourea Polymer Synthesis and Membrane Fabrication
2
Synthesis of Polyimide Membrane Precursors
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4,4′-Oxydiphthalic anhydride (OPDA), 4,4′-(4,4′-isopropylidene-diphenyl-1,1′- diyldioxy)dianiline (IPrDA), and 4,4′-oxydianiline (ODA) were purchased from Sigma-Aldrich S.A. 4,4’-(Hexafluoroisopropylidene)diphthalic anhydride (6FDA), and 2,3,5,6-tetramethyl-1,4-phenylenediamine (4MPD) were obtained from Tokyo Chemical Industry Co., Ltd. (Tokyo, Japan). Bis(2-aminopropyl)poly(ethylene oxide) (PEO), Jeffamine ED-2003 with a molar mass of 2000 g/mol, was kindly donated by Huntsman (Rotterdam, The Netherlands). Anhydrous N-methyl-2-pyrrolidinone (NMP), and 1,2-dichlorobenzene (ODB) were received from Sigma-Aldrich Poland S.A. (Poznań, Poland). N,N-Dimethylformamide (DMF) and methanol were purchased from Avantor Performance Materials Poland S.A. (Gliwice, Poland)
Nitrogen, carbon dioxide, helium with a purity of 99.998% and oxygen (99.95%) were supplied from Messer Poland S.A. (Chorzów, Poland), and they were used as received.
4,4′-Oxydianiline was recrystallized from methanol in the presence of decolorizing charcoal. DMF was vacuum distilled before use. The other reagents were used without further purification. 6FDA, OPDA, 4MPD, IPrDA, and ODA were dried overnight before use in a vacuum oven at 150 °C. Jeffamine was dried at 70 °C in a vacuum oven overnight prior to use.
Nitrogen, carbon dioxide, helium with a purity of 99.998% and oxygen (99.95%) were supplied from Messer Poland S.A. (Chorzów, Poland), and they were used as received.
4,4′-Oxydianiline was recrystallized from methanol in the presence of decolorizing charcoal. DMF was vacuum distilled before use. The other reagents were used without further purification. 6FDA, OPDA, 4MPD, IPrDA, and ODA were dried overnight before use in a vacuum oven at 150 °C. Jeffamine was dried at 70 °C in a vacuum oven overnight prior to use.
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