Controlled‐molecular‐weight‐distribution polymerization of sodium citrate in aqueous solution is successfully performed by Kolbe electrolysis reaction. It can be carried out in aqueous solution and no initiator and catalyst need to be added specially in this new polymerization procedure. The molecular weight of polymerization product linear rises with increasing conversion rate, and its distribution is maintained relatively narrowly (Mw/Mn < 1.55). The molecular weight and its distribution are obviously affected by a couple of elements, such as reaction temperature, as well as the kinds and amount of addition neutral salt ions in electrolysis solution. Kolbe electrolysis can realize the controlled‐molecular‐weight‐distribution polymerization of sodium citrate monomer effectively, which expands the scope of non‐olefin monomers used for controlled‐molecular‐weight‐distribution polymerization.

中文翻译：

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分子量分布可控的水溶液中柠檬酸钠Kolbe电解聚合

通过Kolbe电解反应成功地进行了柠檬酸钠在水溶液中的控制分子量分布聚合。它可以在水溶液中进行，在这种新的聚合过程中无需特别添加引发剂和催化剂。聚合产物的分子量线性地随着转化率的增加而增加，并且其分布保持相对窄（Mw / Mn ＜1.55）。分子量及其分布显然受反应温度，电解液中加成中性盐离子的种类和数量等因素影响。Kolbe电解可以有效地实现柠檬酸钠单体的可控分子量分布聚合，