丙烯腈-丁二烯-苯乙烯

Polyester would provide the best performance, but it is considered too costly for widespread use; acrylics are also considered too expensive despite the fact that they have superior properties for such uses.

涤纶纤维的性能最好，但人们认为它造价较高而不能大量使用；丙烯腈尽管具有许多优异的性能，但也被认为价格较高而不宜作此用途。

Polyester would provide the best performance, but it is considered too costly for widespread use; acrylics are also considered too expensive despite the fact that they have superior properties for such uses.

涤纶纤维的性能最好，但人们认为它造价较高而不能大量使用；丙烯腈尽管具有许多优异的性能，但也被认为价格较高而不宜作此途。

Produce per year nitrile of 50 thousand tons of propylene device and produce per year device of 30 thousand tons of acrylic fibbers to all be introduce technology and device.

年产五万吨丙烯腈装置和年产三万吨腈纶装置均为引进技术和设备。

Ministry of acrylic fibbers career is main raw material with propylene nitrile, fiber of manufacturing acrylic fibbers and acrylic fibbers wool.

腈纶事业部以丙烯腈为主要原料，生产腈纶纤维和腈纶毛条。

It is currently produced by catalytic ammoxidation of propylene in fluidised beds. Several disadvantages still remain in the process: high ammonia concentration in the raw gas; high CO2 yielding and considerable ammonia concentration in output gas. The key subjects in the research domain are effective catalyst design and environment-friendly process development.

工业上普遍采用流化床丙烯氨氧化法合成丙烯腈，但该工艺一直来存在原料气中氨的配比高、反应尾气中含有余氨和完全燃烧产物的收率仍较高的不足，开发高效低氨比催化剂及相应的环境友好反应工艺一直是该领域重点研究的课题。

High Isotactic polyacrylonitrile can be used to prepare high strength and high module carbon fiber.

高等规聚丙烯腈可作高强高模碳纤维的原丝，但对其预氧化过程的研究很少。

Everacid acid dyes tuffs and Everset neutral dyestuffs were used to dye milkcasein acrylonitrile copolymer fiberviz.

采用Everacid 酸性染料和Everset中性染料对牛奶酪素蛋白与丙烯腈接枝共聚纤维进行染色试验。

AN has shown remarkable embryotoxicity by subcutaneous injection.The threshold of teratogenic effect is lower than that by gavage,so AN is a weak teratogen.

结论丙烯腈皮下注射染毒有明显的胚胎毒性，致畸剂量小于经口染毒阈剂量，是一种弱致畸物。

Effects of microwave power, reaction time, reaction temperature, solvent etc. on reaction were studied by a single factor tests. The results show that maleic acid is more active than fumaric acid; the introduction of methyl group on the double bond can weak the reactivity of the Michael addition reaction; the ester base is more propitious to complete the Michael addition reaction than the nitrile base.

为研究微波下迈克尔反应的规律，本文采用单模聚焦微波有机合成仪，通过对顺丁烯二酸、反丁烯二酸和氨水合成DL-天冬氨酸、顺式3-甲基丁烯二酸和氨水合成3-甲基天冬氨酸、丙烯酸甲酯和氨水合成β-丙氨酸、丙烯腈和氨水合成β-氨基丙腈等五个反应对迈克尔加成反应进行了研究。

In order to get the safe, non-leak, minitype and superthin capacitor, electric double layer capacitors of PAN-based gel polymer electrolytes by in-situ polymerization were prepared. In this EDLC, PC and EC were used as plasticizer, LiClO4 was used as the supporting electrolyte and activated carbons with the specific surface areas of 1000m2/g and 2600m2/g, respectively, as the electrode materials.

为了得到安全、无泄漏、微型、超薄型的双电层电容器，采用内聚合方法制得聚丙烯腈基凝胶聚合物电解质双电层电容器，电解质的增塑剂为碳酸丙烯酯和碳酸乙烯酯，支持电解质为高氯酸锂，电极材料分别为比表面积1000m2/g 和2600m2/g 的活性炭。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。