以一缩二乙二醇和甲基丙烯酸甲酯为主要原料,酯交换合成一缩二乙二醇双甲基丙烯酸酯.硫酸钙晶须对合成一缩二乙二醇双甲基丙烯酸酯具有高效催化作用,而半水和无水硫酸钙均没有催化活性.考察了甲基丙烯酸甲酯与一缩二乙二醇物质的量比、催化剂用量、阻聚剂用量等因素对收率的影响,得出了最佳反应条件:n(甲基丙烯酸甲酯);n(一缩二乙二醇)=3.5:1,反应温度为回流温度,催化剂硫酸钙晶须、阻聚剂氮氧自由基加入量分别为一缩二乙二醇质量的3%、0.1%.在此条件下合成的一缩二乙二醇双甲基丙烯酸酯的收率大于96.3%,纯度达97%.
参考文献
| [1] | 鲁波;王强;赵国粱 .大孔磺酸型阳离子交换树脂为催化剂合成甲基丙烯酸甲酯[J].化学简报,1998,6(02):21. |
| [2] | 李翔宇,陈樑,丁斌,邹宜刚.厌氧胶粘剂的构成及其发展应用状况[J].昆明理工大学学报,2002(02):115-118. |
| [3] | 吕亮,段雪,李峰,何静,吾国强,金勤剑.固体碱催化酯交换反应的研究[J].中国皮革,2002(17):25-28. |
| [4] | 李向清,陈强,张林鄂,穆劲.微米级硫酸钙晶须的制备[J].应用化学,2007(08):945-948. |
| [5] | Misheck G. Mwaba;Junjie Gu;Mohammad R. Golriz .Effect of magnetic field on calcium sulfate crystal morphology[J].Journal of Crystal Growth,2007(2):381-386. |
| [6] | Praveen BM;Venkatesha TV;Naik YA;Prashantha K .Corrosion studies of carbon nanotubes-Zn composite coating[J].Surface & Coatings Technology,2007(12):5836-5842. |
| [7] | Nishant M. Tikekar;K.S. Ravi Chandran;Anthony Sanders .Nature of growth of dual titanium boride layers with nanostructured titanium boride whiskers on the surface of titanium[J].Scripta materialia,2007(3):273-276. |
| [8] | titanium[J].Scripta Materialia,2007,57(03):273. |
| [9] | Eom SH;Yu YM;Choi YD;Kim CS .Optical characterization of ZnO whiskers grown without catalyst by hot wall epitaxy method[J].Journal of Crystal Growth,2005(1/2):166-171. |
| [10] | Ekaterina A. Pomerantseva;Marina G. Kozlova;Kirill V. Didenko;Alexander G. Veresov;Eugene A. Goodilin;Yuri D. Tretyakov .Nanostructured Ba6Mn24O48 whiskers[J].Mendeleev Communications,2007(1):16-17. |
| [11] | F. Wang,Z.K. Fan,J.F. Zhu.IN SITU PROCESSING OF Al2O3 WHISKERS REINFORCED Ti-Al INTERMETALLIC COMPOSITES[J].金属学报（英文版）,2006(06):432-440. |
| [12] | Tong Fang;Michael Osterman;Michael Pecht .Statistical analysis of tin whisker growth[J].Microelectronics and reliability,2006(5/6):846-849. |
| [13] | M. Radwan;M. Bahgat;A.A. El-Geassy .Formation of aluminium nitride whiskers by direct nitridation[J].Journal of the European Ceramic Society,2006(13):2485-2488. |
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