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The effects of polyelectrolytes on the inhibition and aggregation of calcium oxalate crystallization

机译:聚电解质对草酸钙结晶抑制和聚集的影响

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The influence of polyelectrolytes with different architecture on spontaneous batch crystallization of calcium oxalate was investigated. A series of acidic acrylate block copolymers were been made, by radical polymerization, with defined molecular weight and structure. Radical polymerization of acrylic acid (AA) was carried out in the presence of a-thiopolyethylene glycol monomethylether as a chain transfer agent to produce poly(ethylene glycolblockacrylic acid) copolymers. Poly(ethy-lene glycol) (PEG) block length in the copolymers was controlled by using three different molecular weight chain transfer agents (M{sub}n = 350, 750 and 2000 g/mol). The presence of copolymers inhibited the crystal growth of calcium oxalate possibly through adsorption onto the active growth sites for crystal growth due to the charge and hydrophilic effects.
机译:研究了不同结构的聚电解质对草酸钙自发分批结晶的影响。通过自由基聚合,制备了一系列具有确定的分子量和结构的酸性丙烯酸酯嵌段共聚物。在α-硫代聚乙二醇单甲醚作为链转移剂的存在下进行丙烯酸(AA)的自由基聚合,以生产聚(乙二醇嵌段丙烯酸)共聚物。通过使用三种不同的分子量链转移剂(M {sub} n = 350、750和2000g / mol)来控制共聚物中的聚(乙烯-乙二醇)(PEG)嵌段的长度。由于电荷和亲水作用,共聚物的存在可能通过吸附到晶体生长的活性生长位点上而抑制草酸钙的晶体生长。

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