| 二亚(3,4-二甲基)苄基山梨糖醇的合成与表征 |
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| 引用本文： | 麻一明,方仕江. 二亚(3,4-二甲基)苄基山梨糖醇的合成与表征[J]. 合成化学, 2005, 13(6): 620-623 |
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| 作者姓名： | 麻一明 方仕江 |
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| 作者单位： | 浙江大学,高分子工程研究所,浙江,杭州,310027;浙江大学,高分子工程研究所,浙江,杭州,310027 |
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| 摘 要： | 山梨糖醇与3，4-二甲基苯甲醛在酸催化下缩合成聚丙烯透明成核剂——二亚（3，4-二甲基）苄基山梨糖醇。实验结果表明，在3，4-二甲基苯甲醛66mmol，n（醇）：n（醛）=1．0：2．0，ω（催化剂）=0．6％-1.2％（以反应单体的质量计算），ω（促进剂）=15％～18％（以反应物的总质量计算），回流反应5h的最佳反应条件下，收率在96.5％以上。
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| 关 键 词： | 山梨糖醇 苯甲醛 缩合反应 成核剂 |
| 文章编号： | 1005-1511（2005）06-0620-04 |
| 收稿时间： | 2005-04-26 |
| 修稿时间： | 2005-06-01 |
Synthesis and Characterization of Di(3,4-dimethylbenzylidene)sorbitol |
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| MA Yi-ming,FANG Shi-jiang. Synthesis and Characterization of Di(3,4-dimethylbenzylidene)sorbitol[J]. Chinese Journal of Synthetic Chemistry, 2005, 13(6): 620-623 |
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| Authors: | MA Yi-ming FANG Shi-jiang |
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| Affiliation: | Institute of Polymer Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Di(3,4-dimethylbenzylidene)sorbitol was synthesized by condensation reaction of sorbitol and 3,4-dimethyl benzaldehyde using acid as a catalyst.The experiment results showed that the yield was more than 96.5% under the best reaction conditions: the amount of 3,4-dimethyl benzaldehyde was 66 mmol,the molar ratio of 3,4-dimethyl benzaldehyde to sorbitol was 2.0,the amount of catalyst and accelerator was 0.6%~1.2% and 15%~18% of the total mass of reactants,respectively.The reaction time was 5 h. |
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| Keywords: | sorbitol benzaldehyde condensation reaction nucleating agent |
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