| 洪仁杰,高伟群,米晨,安丹丹,姜艳军.化学通报,2016,79(6):539-543. |
| 新型甘露醇基凝油剂的制备及性能研究 |
| Preparation and properties of a novel mannitol-based oil gelator |
| 投稿时间：2015-08-10 修订日期：2015-12-11 |
| DOI： |
| 中文关键词: 环己酮缩甘露醇 凝油剂 环己酮 甘露醇 缩酮 |
| 英文关键词:Cyclohexanone mannitol Ketal gelator cyclohexanone mannitol ketal |
| 基金项目:河北省高等学校科学技术研究重点项目(YQ2013025) |
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| 中文摘要: |
| 本研究利用甘露醇和环己酮,通过缩酮反应,合成具有相选择性的新型糖基凝油剂-环己酮缩甘露醇。考察了反应时间、催化剂用量、分子筛用量、底物配比等多个因素对环己酮缩甘露醇产率的影响。实验结果表明,分子筛用量为12g,催化剂用量为0.8g,反应时间为 1h时,环己酮与甘露醇摩尔比为6.2:1的条件下,环己酮缩甘露醇产率达到52%以上。并对所制备的环己酮缩甘露醇的凝油能力进行测试,结果发现,凝油剂可以凝固汽油、硅油等多种油类,柴油凝固的最小浓度为0.74wt%,汽油和硅油分别是2.70wt%、0.39wt%。 |
| 英文摘要: |
| A novel mannitol-based oil gelator was synthesized from cyclohexanone and mannitol through ketal reaction. Factors such as reaction time, weight of catalyst, weight of molecular sieve, the ratio of the reactants that influenced the reaction yield were studied. The optimal reaction conditions were as follows: the weight of molecular sieve was 12g, weight of catalyst was 0.8g, reaction time was 1h, and the the mole ratio of cyclohexanone to mannitol is 6.2: 1. Under the above conditions, the yield of oil gelator is up to 52%. The gelation ability of the sugar-based gelator was tested and the results showed that it can gel several solvents like petrol and silicone oil.The critical gelation concentrations for diesel, petrol and silicone oil were 0.74wt%, 2.70wt% and 0.39wt%, respectively. |
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