| 辛酸蔗糖酯的超声合成和表征 |
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| 引用本文： | 钟康荣,黄丹,朱文峰,高卫东. 辛酸蔗糖酯的超声合成和表征[J]. 化学研究, 2009, 20(2): 65-68 |
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| 作者姓名： | 钟康荣 黄丹 朱文峰 高卫东 |
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| 作者单位： | 江南大学,生态纺织科学与技术教育部重点实验室,江苏,无锡,214122;江南大学,生态纺织科学与技术教育部重点实验室,江苏,无锡,214122;江南大学,生态纺织科学与技术教育部重点实验室,江苏,无锡,214122;江南大学,生态纺织科学与技术教育部重点实验室,江苏,无锡,214122 |
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| 摘 要： | 研究了超声技术促进蔗糖的酯化反应，考察了反应温度、时间、催化剂等对反应的影响．当蔗糖与辛酸乙酯的摩尔比为2：1，反应温度为70℃，催化剂K2CO3占辛酸乙酯质量分数的11％和反应压力为11kPa的条件下，超声反应2h，能高产率地获得辛酸蔗糖酯，且产物的单酯化物含量达92％．产物结构用红外和核磁表征，产物易溶于极性溶剂，热稳定性好，亲水亲油平衡值（HLB）为10．8．
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| 关 键 词： | 辛酸蔗糖酯 蔗糖 辛酸乙酯 酯交换反应 超声辐射 HLB |
Ultrasonic Synthesis and Characterization of Sucrose Octanoate |
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| ZHONG Kang-rong,HUANG Dan,ZHU Wen-feng,Gao Wei-dong. Ultrasonic Synthesis and Characterization of Sucrose Octanoate[J]. Chemical Research, 2009, 20(2): 65-68 |
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| Authors: | ZHONG Kang-rong HUANG Dan ZHU Wen-feng Gao Wei-dong |
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| Affiliation: | (Key Laboratory of Eco-Textile, Jiangnan University, Ministry of Education, Wuxi 214122, Jiangsu, China) |
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| Abstract: | Sucrose octanoate was synthesized by the transesterification of sucrose with ethyl caprylate under ultrasound irradiation in good yield (75%).The optimum reaction conditions for this transesterification was identified as following: the molar ratio of sucrose/ethyl caprylate was 2∶1,reaction temperature was 70 ℃,reaction time was 2 h,the mass ratio of catalyst(K2CO3) to ethyl caprylate was 11%,and the reaction pressure was 11 kPa.The sucrose octanoate,isolated by column chromatography,had a high percentage of monoesters(92%) and a low content of diesters.The monoesters was identified by 1H NMR and IR.The sucrose octanoate has good solubility in polar solvent and high thermal stability,and the hydrophilic-lipophilic balance(HLB Value) is 10.8. |
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| Keywords: | HLB |
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