异戊烯

The properties of single chain and pauci chain polystyrene microspheres and recent results on the electron microscopy and selected area electron diffraction of single chain monocrystals of polyethylene oxide, isotactic polystyrene, cis1,4 polybutadiene and gutta percha are presented and discussed.

介绍和讨论了单链和寡链聚苯乙烯玻璃体微球的性质以及聚环氧乙烷、同立构聚苯乙烯、－，4－丁二稀、－，4－异戊二烯单链单晶电子显微镜和选区电子衍射观察的最新结果。

Comparison of inhibitors for anti-polymerization of isoprene, such as NaNO2, p-tert-butylcatechol, N-methyl pyrrolidone and paradioxybenzene, was carried out using polymer segregation process and the results showed that TBC was the best one.

采用聚合物离析法比较了亚硝酸钠（NaNO2）、对叔丁基邻苯二酚、N-甲基吡咯烷酮、对苯二酚对异戊二烯的阻聚效果，发现TBC阻聚效果最好。

This paper demonstrates distribution features and geochemical significance of biomarker in Tangyuan Depression and crude oil,and indicates that,abundant n-alkane,isoprenoid-n-alkane,terpenoid and steride are tested in Tangyuan Depression .

主要论述了汤原断陷生物标志化合物及原油生物标志化合物的分布特征及其地球化学意义，指出汤原断陷内检出丰富的正烷烃、类异戊二烯烷烃、萜类化合物及甾类化合物。

The stable carbon isotope s of saturated hydrocarbon and specific compound composition of the oil from the trachyte near the crater are relatively low,and the negative anomalies of the .

通过对欧利坨子原油地球化学特征的研究，发现原油性质的差异同储集层与火山口的相对位置有着密切的关系，在火山口附近的粗面岩储集层中，原油的饱和烃及其单体碳同位素值偏轻，类异戊二烯烃的碳同位素负异常基本消失，原油的CPI和OEP值较低(平均为1·21和1·06)。

Its emission accounts for half of the hydrocarbons total one, and especially is very high in the rural and well vegetated areas, which greatly influences the regional environment such as ozone concentration.

异戊二烯(C_5H_8)是对流层中重要的NMHC，也是植被释放最多的挥发性有机化合物，其排放量占植物烃类总排放量的一半，特别是在农村和边远地区大气边界层中含量很高，往往对局地大气环境，如臭氧浓度有很大的影响。

Isoprenoids have the advantage that, like alcohols, they are part of the natural biochemistry of many organisms.

类异戊二烯有个跟醇类一样的优势，那便是它们是许多有机体中生物化学成分所含有的。

By splicing in genes from other bugs, the company was able to engineer synthetic metabolic pathways—ones that do not exist in nature—that enable the bacteria to produce isoprene from the sugars found in plant materials such as sugar cane, corn cobs and switchgrass, a tall-growing variety native to North America.

Genencor的科学家们通过将大肠杆菌的基因与其它菌类基因接合，则能研发出前所未有的代谢合成途径，使细菌能从植物所含的糖类中制造出异戊二烯，这些含糖植物包括甘蔗、玉米棒和北美特有的变异品种柳枝稷等。

The application of liquid isoprene rubber partly replacing NR by equal weight in bead filler of PC tire was investigated.

研究液体聚异戊二烯橡胶等量部分替代NR在轿车轮胎三角胶中的应用效果。

In the phase-boundary reactions of cyclohexene hydration and isoamyl acetate hydrolysis, these amphiphilic zeolite particles are oriented at the aqueous-organic phase boundary and exhibit catalytic activity obviously superior to the parent zeolites.

在环己烯水合及乙酸异戊酯水解的相界面反应中，两亲性沸石分布於水－油两相界面，并表现出明显高於各自母体沸石的催化活性。

Isoprene can also be artificially polymerised to make synthetic rubber.

异戊二烯也可以通过人工聚合来制造合成橡胶。

We are in a real jam.

我们的麻烦大了。

Hey, it's Ahmet from India, that foreign exchange guy.

看，那是印度的阿曼特，国际交换生