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[求助]
求英語高手幫幫忙翻譯【松香聚乙二醇檸檬酸酯表面活性劑的合成及性能探討】的摘要
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松香聚乙二醇檸檬酸酯表面活性劑的合成及性能探討 摘 要 以松香為主要原料，氧化鋅為催化劑，先與聚乙二醇反應(yīng)生成中間體（松香聚乙二醇酯），中間體再與檸檬酸合成一種新型表面活性劑（松香聚乙二醇檸檬酸酯）。探討了該表面活性劑的合成的最佳條件，中間體的合成最佳條件為：松香與聚乙二醇6000的物質(zhì)的量之比為1∶1. 6，反應(yīng)溫度270℃，反應(yīng)時間3h; 目標(biāo)產(chǎn)物合成的最佳條件為:反應(yīng)溫度150℃, 反應(yīng)時間60min。探討了該表面活性劑的表面張力(γ),臨界膠束濃度(CMC) ,乳化性,泡沫性等。結(jié)果表明,中間體和目標(biāo)產(chǎn)物均為性能優(yōu)良的新型非離子表面活性劑。 |
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zuodg
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【答案】應(yīng)助回帖
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sltmac(金幣+1): 謝謝交流~~ 2011-04-24 17:22:10
mqjyyn(金幣+10, 翻譯EPI+1): 2011-04-24 23:01:35
sltmac(金幣+1): 謝謝交流~~ 2011-04-24 17:22:10
mqjyyn(金幣+10, 翻譯EPI+1): 2011-04-24 23:01:35
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Zinc oxide being catalyst, the main raw material rosin and PEG are catalyzed to form an intermediates, polyethylene glycol ester of rosin, which then reacts with citric acid, leading to formation of a new type of surfactant, rosin-polyethylene glycol-citric acid ester (RPGC). Optimum conditions for synthesis of RPGC are discussed. Optimum conditions for synthesis of intermediates are as following, molar ratio of rosin and PEG6000 being 4:1 reaction temperature being 270℃，and reaction time being 3 h. Optimum conditions for synthesis of objective product are as following, reaction temperature being 150℃ and reaction time being 60 min. Properties of the surfactant, such as surface tension (γ), critical micelle concentration (CMC), emulsification, bubble, et al are discussed. Results indicate that both intermediates and objective product are new type of nonionic surfactant with excellent performance. 不是有機(jī)合成專業(yè)的，有些東西翻譯的不到位，希望能幫到您 |
3樓2011-04-24 09:59:32
jfly
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2樓2011-04-24 01:43:17
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