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首页> 外文期刊>Journal of Applied Polymer Science >DMSO as solvent on the synthesis of flame-retardant polyether polyols
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DMSO as solvent on the synthesis of flame-retardant polyether polyols

机译：DMSO作为溶剂对阻燃聚醚多元醇的合成

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Polyether polyols with flame-retardant properties are synthesized using glycerol phosphate disodium salt as an initiator and dimethyl sulfoxide (DMSO) as a solvent. The molecular weight of the polyol decreased when higher solvent to initiator ratios were used, revealing that a larger amount of salt was activated. In addition, the larger the amount of activated salt was, the higher the percentage of phosphorous was in the final polyol. Glycerol phosphate disodium salt was still partially insoluble in the studied proportions of DMSO. Thus, the recovery and reuse of this part of the salt for the synthesis of new flame-retardant polyols were evaluated. The recovered salt promoted a shorter induction period because it presented a larger amount of deprotonated hydroxyl groups. In addition, there were no differences between both synthesized polyols, indicating that it is possible to use the recovered salt in the same way as it is used commercially with the advantage of a shorter induction period for polymerization. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47042.
机译：使用甘油磷酸二钠盐作为引发剂和二甲基亚砜（DMSO）作为溶剂合成具有阻燃性质的聚醚多元醇。当使用更高的溶剂对引发剂比时，多元醇的分子量降低，揭示了较大量的盐被活化。此外，活化盐的量越大，磷在最终多元醇中的少数越高。甘油磷酸二钠盐仍然部分不溶于研究的DMSO比例。因此，评估了用于合成新的阻燃多元醇的盐的该部分的回收和再利用。回收的盐促进了较短的诱导期，因为它呈现了更大量的去质子化羟基。此外，合成多元醇之间没有差异，表明可以以与在商业上使用的相同方式使用回收的盐，其利用较短的诱导时段进行聚合。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47042。

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