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- The latest progress in the synthesis of cyclic carbonates from carbon dioxide and epoxides was reviewed, and the catalytic reaction mechanism was discussed. 本文综述了近年来该反应的研究进展,讨论了催化剂作用下的反应机理。
- The synthesis of cyclic carbonates from carbon dioxide and epoxides is one of the most effective routes for chemical utilization of carbon dioxide as a C1 building block. 二氧化碳与环氧化合物通过环加成反应制备环状碳酸酯是二氧化碳化学法利用最为有效的途径之一。
- Cyclic carbonate, Amine aldehyde, keto, activated olefinic bond, N-alkoyl, acid, anydride, acid chloride, acetoacetoxy. 环碳酸酯,胺醛,酮,活性烯键的N alkoyl,酸,anydride,酰氯,乙酰乙酸。
- The intermixture of cyclic carbonate and polyhydric alcohol was used to liquefying lignocellulosics rapidly under atmosphere pressure,acid catalyst and elevate temperature. 因此生物质可以被认为是由多种复杂大分子结合而成的超分子,具有相当高的热化学稳定性;
- Biodegradable aliphatic polycarbonate is generally prepared by polycondensation of diols with phosgene or dialkyl carbonate, copolymerization of carbon dioxide with epoxide, and ring-opening polymerization of cyclic carbonates. 生物可降解脂肪族聚碳酸酯一般可以通过二元醇与光气或二烷基碳酸酯的缩合聚合、二氧化碳与环氧化合物的共聚以及环状碳酸酯的开环聚合来制备。 其中,环状碳酸酯的开环聚合是合成生物可降解脂肪族聚碳酸酯的重要方法。
- Keywords carbon dioxide;diols;cyclic carbonate;acetates;catalysis; 二氧化碳;二醇;环状碳酸酯;乙酸盐;催化;
- I make a carbon copy of my documents. 我用复写纸复写文件。
- Soft drinks contain carbon dioxide. 软饮料中含有二氧化碳。
- I have some carbon paper somewhere or other. 我记得我在什么地方放有复写纸。
- She's a carbon copy of her sister. 她跟她姐姐一模一样。
- cyclic carbonation 循环碳酸化
- A copy made by using carbon paper. 复写本,副本用复写纸复印的一份
- A cyclic code with minimum redundancy used to check errors in a set of characters. 一种用于检查一组字符的错误、并且具有最小冗余度的循环码。
- The unsaturated link occurs in a cyclic system. 在环体系中存在不饱和键。
- The steam-engine piston makes a cyclic motion. 蒸汽机活塞做往复运动。
- Plants can absorb carbon dioxide and release oxygen. 植物可以吸收二氧化碳释放氧气。
- Keywords Erythromycin A 11;12 cyclic carbonate;Erythromycin A;Tautomerism; 红霉素环11;12-碳酸酯;红霉素A;互变异构体;
- You receive the top copy of the receipt, and we keep the carbon. 你把这收据上面的原件收下,我们保留下面的复写件。
- Shows how easy the cyclic graph is represented. 显示了循环图是多么容易表示。
- The stick of carbon is often used in an electric arc lamp. 碳精棒常用于电弧灯。