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- cyclic carbonate compound 环状碳酸酯化合物
- 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;
- Of or designating carbon compounds. 与碳化物有关的
- A device for burning or chemically altering unburned or partially burned carbon compounds in exhaust gases. 排气后燃器用以充分燃烧或从化学上改变废气中未完全燃烧或部分燃烧的含碳化合物的设备
- The bacteria fed initially on various carbon compounds. 细菌最初靠著不同的碳化合物存活。
- By tracing the fate of the radioactivity within a living organism, one can learn the normal pathway of this carbon compound in that organism. 通过追踪放射性在活体内的去向,人们能得知这种碳化合物在体内正常的途径。
- 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。
- 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。
- The resulting brew of carbon compounds and ions is thus rather complex. 最后调制出的碳化合物、碳离子溶液因而变得很复杂。
- A conductive coating has been developed by use of a carbon comPOund fillers (acetylene black, graphite and carbon fibre), which shows evidently an electrically heating characteristics under safe voltage. 用炭系混合填料(乙炔炭黑、石墨、碳纤维)制备了面状发热体用的在安全电压以下具有明显电发热特性的导电涂料。
- Phosphorus eutectic and carbon compound with boracium were found in the structure of rubbing-pair material when reasonable amounts of the elements of phosphorus and boracium were added. 研究结果表明:合理添加磷、硼等元素,在合金铸铁摩擦配副材料中形成适量的磷共晶和含硼碳化物,可明显提高其耐磨减摩性;
- Keywords carbon dioxide;diols;cyclic carbonate;acetates;catalysis; 二氧化碳;二醇;环状碳酸酯;乙酸盐;催化;
- Of or relating to long-chain carbon compounds, especially fats, having many unsaturated bonds. 多不饱和的具有许多不饱和键的长键化合物的,或与之关的,尤指脂肪
- One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites. 地球外存在生命的理论是根据陨星上存在碳化合物这一事实得出的。
- However, the Sgr B2 complex contains cold dust grains consisting of a silicon core surrounded by a mantle of water ice and various carbon compounds. 这些颗粒表面的化合物可以与相邻的颗粒进行化学反应后,可以互动而产生分子的成分。
- 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;
- The Synthesis of Hypervalent Bond Carbon Compound 超原子价键碳化合物的合成
- exogenous organic carbon compound 外源有机物
