1, 8-萘二甲酸二钾盐的制备本实验采用氢氧化钾与1,8-萘酐通过碱溶反应制备1,8-萘二甲酸二钾盐，并用红外、核磁表征产物确定结构；再通过正交实验，考察了温度、碱浓度、时间和反应物配比等因素对碱溶反应的影响，并在实验范围内，得到1,8-萘酐碱溶反应的最佳工艺条件。关键词：氢氧化钾, 1,8-萘酐,碱溶反应，正交实验Study on waste silk depolymerization of polyurethanes elastomer Abstract：The present study,1, 8-萘二甲酸二钾盐的制备 本实验采用氢氧化钾与1,8-萘酐通过碱溶反应制备1,8-萘二甲酸二钾盐，并用红外、核磁表征产物确定结构；再通过正交实验，考察了温度、碱浓度、时间和反应物配比等因素对碱溶反应的影响，并在实验范围内，得到1,8-萘酐碱溶反应的最佳工艺条件。 关键词：氢氧化钾, 1,8-萘酐,碱溶反应，正交实验 Study on waste silk depolymerization of polyurethanes elastomer Abstract： The present study, potassium hydroxide and 1,8 - naphthalene anhydride prepared by alkali dissolution reaction of 1,8 - naphthalene dicarboxylate potassium salt, and characterized by IR, NMR characterization of the product determine the structure; another orthogonal experiment of temperature, alkali concentration, time, and reactant ratio on the alkali dissolution reaction, and in the experimental range, are 1,8 - naphthalene anhydride alkali dissolution reaction of the optimum conditions. . Key words：Potassium hydroxide,1,8 - naphthalene anhydride, alkali reaction, orthogonal
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