CHAH-MOH SHEN

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The preparation of low molecular weight poly-4(5)-vinylimidazole is described. Oligomer fractions with molecular weight ranges from a few hundred to two thousand, five hundred were obtained by fractionation through a Sephadex LH-20 column. The apparent dissociation constant of the imidazolium ion in oligo-4(5)vinylimidazole decreases rapidly as the average(More)
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