Chelate membrane from poly(vinyl alcohol)/poly(N-salicylidene allyl amine) blend. I: synthesis and characterization of Co(II) chelate membrane

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Hanyang Univ, Seoul, Korea, Republic of [1 ]
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Polymer | / 7卷 / 1507-1512期
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Chelate membrane - Elemental analysis - Schiff-base membranes;
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摘要：
A Co(II) chelate membrane from a poly(vinyl alcohol)/poly(allyl amine) blend was synthesized. As an intermediate step the blend membrane was modified to a Schiff-base type. Structures of blend and Schiff-base membrane were confirmed by the FTi.r. subtraction method. Differential scanning calorimetry thermograms of blend and Schiff-base membranes showed that the glass transition temperature (Tg) ranges between 40 and 50°C. Co(II) content in chelate membrane was determined by electron dispersive X-ray spectroscopy, elemental analysis and thermogravimetric analysis and ranged between 9.82 and 15.75 wt%. As the membrane becomes chelate with Co(II), the density increases as measured by a density gradient column.
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