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1,6-Dimethyl adipate with selectivity of 100% was synthesized by batch and continuous esterification process using adipic acid and methanol as raw materials,DNW-I strong-acid cation exchange resin as catalyst.

摘 要：以DNW-I型强酸型正离子交换树脂为催化剂，己二酸和甲醇为原料，经间歇酯化和连续酯化反应后通过精馏可制备选择性为100%的1，6-己二酸二甲酯。

Di-2-ethylhexyl adipate was synthesized with complex solid super acid SO(superscript 2- subscript 4)/ZrO2-TiO2 as catalyst. Effects of catalyst dosage, molar ratio of adipic acid to 2-ethyl hexanol, reaction temperature on reaction were studied.

以复合固体超强酸SO(上标 2-下标 4)/ZrO2-TiO2为催化剂合成了己二酸二（2-乙基）己酯，考察了催化剂用量、酸醇投料比和反应温度对反应的影响。

A series of polyurethane anionomers were synthesized from isophorone diisocyanate, polyneopentanediol adipate and dimethanol propionic acid.

用异佛尔酮二异氰酸酯、聚己二酸新戊二醇酯和二羟甲基丙酸合成了负离子型聚氨酯离聚体。

In this paper, a series of low cross-linking polyurethanes are synthesized using polycaprolacton or polybutamethylene adipate or polyethylene-propylene adipate, MDI and glycerin. Their mechanical, thermal and dynamical properties and shape memory function are studied.

采用聚己二酸乙丙二醇酯、聚己二酸丁二醇酯、聚己内酯和 4，4'-二苯基甲烷二异氰酸酯为原料，以丙三醇为交联剂合成了一系列低度交联的聚氨酯，讨论了组成、配比等对性能的影响，比较了它们和线型聚氨酯在性能上的差别。

A series of thermoplastic polyurethane elastomers with different fraction of hard segments based on poly (ethylene-propylene adipate)/ethylene oxide/tetrahydrofurancopolyether as soft segments were synthesized.

合成了以PET/PEPA为软段的不同硬段含量的热塑性聚氨酯弹性体，利用凝胶渗透色谱、傅立叶变换红外对其进行了表征，并测试了其力学性能。

To decrease maufacture costs and improve the ratio of efficiency and outlay.The not exensive emulsifier, hydrophobe and other adminicle were mixed with self-made polyesters, siloxane-polyester copolymers to obtain defoamers which be better than imported.And the factors in the process of compound were studied particularly and systemically.the prime project is as follows:the siloxane-polyester copolymer is synthesized with PPG2000,PEG400,1% hydrogen-containing Polyhydrosiloxanes, hexane diacid,which mol ratio of materials is 7:3:6:5.emulsifying agents are SP-60 and tw-60,the value of HLB is 8.5.its dosage is 5%.the concentration of control- bubble resin is 5%. the concentration of liquid hydrocarbon A is 20%.

为进一步降低消泡剂的生产成本，提高其使用时的效费比，采用价格低廉的乳化剂、疏水剂及其他助剂与所制聚醚酯、有机硅改性聚醚酯进行复配，制取了性能优于进口产品的优质消泡剂；并对复配工艺各要素进行了详细、系统的研究；最佳配方为：PPG2000、PEG400、含氢量1%的硅油，己二酸以物质的量之比为7：3：6：5制成的有机硅改性聚醚酯，乳化剂选择SP-60/TW-60组合、HLB值为8.5、用量5%，抑泡树脂用量5%，液态烃A用量20%，液态烃B用量10%，疏水剂用量15%～20%。

A vast amount of material and data been analysed and synthesized, the database of aerodynamic force and moment of the aircraft was built.

对于时标分离后所设计的快、慢回路的控制律，又进行了鲁棒性设计。

In order to utilize the by-products produced in the process of soybean oil to develop the series products with high-tech content and high affixture,The raw material classification, substance composing, product quality, function characteristics, extraction technology, applied field,the foreground of development and existent problems,were synthesized.

对植物性大豆蜡研发的原料分类、物质组成、产品质量、功能特点、提取技术、应用领域、发展前景及存在的问题进行了综合性表述，旨在综合利用大豆油脂加工中的副产物，开发高科技含量与高附加值的系列产品，开拓新的应用领域，为国家提供新的蜡质资源，并推进到国际商品市场。

Sodium cyclohexanoloxyacetate was synthesized by 1mol︰1.15mol of cyclohexyl sodium alcoholate to sodium chloroacetate at 135145℃.The reaction time was 2.5h and the yield was about 81%.The sodium cyclohexanoloxyacetate was acidified by HCl to get the intermediate product,2-cyclohexanoloxyacetic acid.

以摩尔比为1︰1.15的环己醇钠和氯乙酸钠为原料，在135145℃下反应合成了环己氧基乙酸钠，反应时间为2.5h，收率约为81%，再将环己氧基乙酸钠用盐酸酸化制得中间体环己氧基乙酸。

Pentanediol dithiophene ester was synthesized by means of alcoholysis reaction using 2,4-Pentanediol and Aroly chloride as raw materials, and 1H NMR spectrum was characterized and it can not be explained.

以2，4-戊二醇和芳酰氯为原料，通过醇解反应合成了一种新的内给电子体化合物二(2-噻吩甲酸)-2，4-戊二醇酯，表征其1H-NMR谱，发现化学位移在2附近出现了三组亚甲基峰，无法解释。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失