1. 生物脂质来源于酮脂酰异戊二烯基团。
Biological lipids originate from ketoacyl and isoprene groups.

youdao

2. 首次利用维生素C催化乳酸醇合成了乳酸异戊酯。
Vitamin C as catalyst was first used in the synthesis of isoamyl lactate from lactic acid and isoamyl alcohol.

youdao

3. 研究了用四氯化锡催化己酸醇合成己酸异戊酯的反应。
Isoamyl hexanoate could be synthesized using stannic chloride from caproic acid and isoamyl alcohol.

youdao

4. 用丁酸醇为原料,复合固体酸为催化剂合成了丁酸异戊酯。
Isoamyl butyrate was synthesized from butyric acid and isoamyl catalyzed by composite solid acid as the catalyst.

youdao

5. 以乙酸醇为原料,采用硅胶载体酸为催化剂合成乙酸异戊酯。
The synthesis of i amyl acetate from i amylic alcohol and acetic acid using silica gel carrier acid as catalyst is reported.

youdao

6. 以自制的硅胶固载硫酸镓为催化剂,正丁酸和异戊醇为原料合成了丁酸异戊酯。
Isoamyl butyrate was synthesized by using gallium sulfate supported on silica gel as the catalyst.

youdao

7. 本工作首次制备了醇改性负载钛催化剂,并将其用于丁二烯二烯配位聚合。
Supported titanium catalysts modified by alcohols were prepared for the first time, and the modified catalysts were used for the coordination polymerization of butadiene and isoprene.

youdao

8. 研究了氯化铁催化合成甲酸酯、乙酸异戊酯、丙酸异戊酯、丁酸异戊酯、丁酸异戊异戊酯。
Synthesis of isoamyl formate, isoamyl acetate, isoamyl propionate, isoamyl butyrate, isoamyl isobutyrate and isoamyl isovalerate by catalysis of hydrated ferric chloride are reported.

youdao

9. 通过丁烯异戊二烯的共聚作用化合而成的一种合成橡胶,几乎不透空气,用作轮胎、内管道绝缘等的材料中。
A synthetic rubber produced by copolymerization of a butylene with isoprene, nearly impermeable to air and used in tires, inner tubes, and insulation.

youdao

10. 树木分泌的天然化学物质二烯萜烯被认为可保护树叶免受过多热量阳光的伤害。
Trees produce natural chemicals, called isoprene and terpene, that are thought to protect their leaves from too much heat and sunlight.

youdao

11. 他解释道:“不只是生产单一产品,相反的,一套设施能够生产乙醇、有机汽油或者有机柴油、喷气式发动机燃料类似异戊二烯的化工原料。”
"Instead of producing one product, a cluster of facilities could produce ethanol, green gasoline or diesel, jet fuel, and industrial chemicals such as isoprene," he explains.

youdao

12. 剩余的异戊二烯则用以生产其它产品,包括胶水,纸尿裤医用乳胶手套。
The rest goes into making other products, including glues, disposable nappies and surgical gloves.

youdao

13. 本文研究了在高压汞灯照射下,二苯甲酮3,4 -聚二烯间的能量传递机理。
This paper studied the energy transmission mechanism between benzophenone and 3, 4-polyisoprene which were irradiated by high pressure Hg lamp.

youdao

14. 使用G93算法,换算出相应二烯单萜烯的标准排放因子,并划分了这些排放因子的等级。
The conversion of relevant standard emission factors of isoprene and monoterpene were made using G93 arithmetic technique, and the grade of these factors was classified.

youdao

15. 利用热重分析(TG)微商热重分析(DTG)研究了天然橡胶、异戊二烯橡胶顺丁二烯橡胶的热解动力学。
The pyrolysis dynamics of nature rubber, isoprene rubber and butadiene rubber was investigated by thermogravimetry analysis (TG) and differential thermogravimetry analysis (DTG).

youdao

16. 采用自燃点法对硝酸硝酸辛酯的性能进行了试验研究。
The autoignition temperature method was adopted in this paper to investigate the performance of amyl nitrate and isooctyl nitrate.

youdao

17. 从环二烯双环二烯的利用、异戊二烯的利用、间二烯的利用以及C5石油树脂的利用等几方面分析裂解c5的综合利用。
From the application of cyclopentadiene, dicyclopentadiene, isoprene and piperylene and the application of C5 petroleum resin, the paper analyzes the comprehensive application of cracking C5.

youdao

18. 研究环氧化反式1,4聚异戊二烯(ETPI)在轮胎锦纶帘布层胶钢丝带束层胶中的应用。
The application of epoxidized trans-1, 4-polyisoprene (ETPI) in the nylon carcass ply compound and steel belt compound of radial tire was investigated.

youdao

19. 研究环氧化反式1,4 聚异戊二烯(ETPI)在轮胎锦纶帘布层胶钢丝带束层胶中的应用。
The application of epoxidized trans-1,4-polyisoprene(ETPI) in the nylon carcass ply compound and steel belt compound of radial tire was investigated.

youdao

20. 用自燃点法对硝酸硝酸辛酯的性能进行了试验研究。
Experimental investigation of performance of amyl nitrate and isooctyl nitrate is made.

youdao

21. 对催化剂的制备条件二酸二辛酯的合成条件进行了研究。
The preparation conditions of the complex catalysts and esterification conditions were studied.

youdao

22. 对掺用反式1,4 聚二烯(TPI)的胎面胎侧胶料进行了试验。
The trans 1,4 polyisoprene (TPI) containing tread and sidewall compounds were tested.

youdao

23. 鲁华异戊橡胶(LHIR)是一种具有高顺式- 1,4 -含量高分子量的溶液聚合的聚二烯。
Luhua isoprene rubber (LHIR) is a kind of solution-polymerization polyisoprene with high cis-1, 4 content and high molecular weight.

youdao

24. 新二醇主要用于制造高档树脂粉末涂料,工业上采用甲醛丁醛缩合合成。
Neopentyl glycol is mainly used for making top-grade resin and powder coating, which is produced industrially by the condensation route using formaldehyde and isobutyraldehyde as raw materials.

youdao

25. 丁烯不大于3%的异戊二烯催化共聚所生成的合成弹性体。
A synthetic elastomer produced by catalytic copolymerization of isobutene with no more than 3% of isoprene;

youdao

26. 中低相对分子质量反式- 1,4 -聚异戊二烯蜡反式- 1,4 -聚丁二烯蜡的合成。
Synthesis of medium and low relative molecular mass trans-1, 4-polyisoprene wax and trans-1, 4-poly butadiene wax.

youdao

27. 属于制备聚二烯的稀土催化剂及制法制备聚异戊二烯的方法。
This invention belongs to rare earth catalyzer for preparing polyisoprene, and its preparation method.

youdao

28. 本发明涉及用于制备聚异戊二烯的磺酸稀土催化剂及制法应用。
The invention relates to sulfonic acid rare earth catalyst used for preparing polyisoprene and preparation method and application thereof.

youdao

29. 本发明涉及用于制备聚异戊二烯的磺酸稀土催化剂及制法应用。
The invention relates to sulfonic acid rare earth catalyst used for preparing polyisoprene and preparation method and application thereof.

youdao