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莰烯合成甲基丙烯酸异冰片基氧乙基酯的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年04期
Page:
127-132
Column:
研究论文
publishdate:
2013-07-15

Article Info:/Info

Title:
Synthesis of isobornyloxyethyl methacrylate from camphene
Article ID:
1000-2006(2013)04-0127-06
Author(s):
WANG Shikang XU Xu XU Xiaowei WEI Baisong WANG Shifa*
Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037,China
Keywords:
camphene isobornyl hydroxyethyl ether isobornyloxyethyl methacrylate etherification transesterification
Classification number :
TQ630
DOI:
10.3969/j.issn.1000-2006.2013.04.024
Document Code:
A
Abstract:
Isobornyloxyethyl methacrylate(IBOEMA), a new type of active diluent for UV-curing coating, was synthesized from camphene as raw material by etherification and transesterification. In the etherification process of camphene and ethylene alcohol, A-15 was used as the catalyst, and theeffects of the amount of A-15, the molar ratios of ethylene glycol to camphene, reaction temperature and time on the yield of isobornyl hydroxyethyl ether were investigated, and the optimum synthesis conditions of isobornyl hydroxyethyl ether were determined based on orthogonal test results as follows: A-15 was used as the catalyst and its dosage was 6.0%(based on the total weight of camphene and ethylene glycol); ethylene glycol/camphene molar ratio was 3.5:1.0; reaction temperature and time were 90 ℃ and 9 h, respectively. The conversion ratio of camphene, reaction selectivity, and the yield of isobornyl hydroxyethyl ether reached 79%, 93%, and 74%, respectively, at aforesaid reaction conditions. In the transesterification process of isobornyl hydroxyethyl ether and methyl methacrylate, cyclohexane was used as the solvent, and the reaction was carried out at the condition of refluxing; the effects of the type and amount of catalyst, the molar ratio of isobornyl hydroxyethyl ether to methyl methacrylate, reaction time, the type and amount of inhibitor on the yield of IBOEMA were examined, and the optimum synthesis conditions of IBOEMA were determined based on the orthogonal test results as follows: methyl methacrylate/isobornyl hydroxyethyl ether molar ratio was 1.25:1.00; KOH was used as the catalyst for transesterification and it dosage was 3%(based on the total weight of methyl methacrylate and isobornyl hydroxyethyl ether); reaction time 8 h; phenothiazine was used as the inhibitor, and its dosage was 1%; cyclohexane was used as the solvent, and cyclohexane/isobornyl hydroxyethyl ether molar ratio was 37:1. The conversion ratio of isobornyl hydroxyethyl ether, reaction selectivity, and the yield of IBOEMA reached 91%, 93%, and 85%, respectively, at the aforesaid reaction conditions. The structures of isobornyl hydroxyethyl ether and IBOEMA were determined with GC-MS and FTIR spectra.

References

[1] Liu H B, Chen M C, Huang Z T. The influence of silicon-containing acrylate as active diluent on the properties of UV-cured epoxydiacrylate films[J]. European Polymer Journal, 2004, 3:609-613.
[2] Liu H B, Chen M C, Xu K. Preparation of new polyorganosiloxane acrylate and the properties of UV-cured acrylate compositions containing it[J]. Polimery, 2004,6:18-21.
[3] Bongiovanni R, Montefusco F. High performance UV-cured coatings for wood protection[J]. Progress in Organic Coatings, 2002(45):359-363.
[4] 吴宗南,刘红波.紫外光固化涂料的研究进展[J].广东化工,2009,36(2):52-55. Wu Z N, Liu H B. Research on progresses in UV-curing coatings[J]. Guangdong Chemical Industry, 2009, 36(2):52-55.
[5] 贾欣茹,李明谦,张玉宝.丙烯酸萜酯聚合动力学及聚合物性能研究[J].北京大学学报:自然科学版,1988,24(4):454-457. Jia X R, Li M Q, Zhang Y B. Studies on polymerization kinetics of isobornyl acrylate and properties of its polymer[J]. Acta Scientiarum Naturalium Universitatis Pekinesis, 1988,24(4):454-457.
[6] 李明谦,贾欣茹,李中.甲基丙烯酸异冰片酯的自由基聚合反应动力学研究及聚合物性能初探[J].丙烯酸化工,1988(1):7-10. Li M Q, Jia X R, Li Z. Studies on free radical polymerization kinetics of isobornyl methacrylate and properties of its polymer[J]. Acrylic Chemical, 1988(1):7-10.
[7] 贾欣茹,李明谦,邵继平,等.丙烯酸异冰片基氧烷基酯聚合动力学及其聚合物性能研究[J].北京大学学报:自然科学版,1994,30(6):635-640. Jia X R, Li M Q, Shao J P, et al. Study on polymerization Kinetics of isobornyl oxyalkyl,acrylates and properties of their polymers[J]. Acta Scientiarum Naturalium Universitatis Pekinesis, 1994,30(6): 635-640.
[8] 冈本康弘,久保元伸.新规(メタ)アクリレートおよびその制法[P].昭62-33135,1987.
[9] Hsu P Y. Photosensitive resin composition for color filters[P]. US, 20040191671, 2004.
[10] Mayes R T, Pohi R L. Photopolymerizable composition for use in an alkaline-etch resistant dry film photoresist[P]. US, 5419998, 1995.
[11] Steeman P A M, Keestra B J. Radiation curable resin composition and rapid three dimensional imaging process using the same[P]. US, 2010304088, 2010.
[12] 邹志平,刘六军.异龙脑基乙醚的合成研究[J].生物质化学工程,2007,41(5):39-41. Zou Z P, Liu L J. Synthesis of isobornyl ethylether[J]. Biomass Chemical Engineering, 2007,41(5):39-41.
[13] 欧文华,林中祥.微波辐射对莰烯与醇加成反应的影响[J].南京林业大学学报:自然科学版,2003,27(2):37-39. Ou W H, Lin Z X. The effect of microwave irradiations on the reaction of camphene with alcohols[J]. Journal of Nanjing Forestry University:Natural Sciences Edition, 2003, 27(2):37-39.

Last Update: 2013-07-30