丙烯腈

At this temperature, the selectivity of acrylonitrile is 92.7% and the conversion of acetonitrile is 19.9%.

在反应温度为400℃时，Mn_(0.2)/BaCO_3催化剂上丙烯腈的选择性为92.7%，乙腈的转化率为19.9%。

Based on the theoretical framework of the leakage and spread of such poisonous and harmful substances as glycol and acraldehyde, this paper advances the graphic simulation of GIS of poisonous and harmful substances.

以石化企业乙二醇、丙烯腈装置产生的有毒、有害物质泄漏、扩散和污染范围的理论模型为根据，提出有毒、有害物质的地理信系统扩散图形模拟方法。

The effect of acrylonitrile content on the properties of the copolymer was studied.

考察了丙烯腈含量对其共聚物性能的影响。

The SAN copolymer generally contains 70 to 80% styrene and 20 to 30% acrylonitrile.

SAN共聚物一般都含有70至80 ％的苯乙烯和20至30 ％的丙烯腈。

Objective:To improve the testing method of micro acrylonitrile in products involved drinking water.

目的：建立完善涉水产品中残留丙烯腈单体的检测方法。

The desalting rate decreases with the rise of flow rate, and increases with the rise of voltage.

为了去除丙烯腈废水中的硫酸铵，采用电渗析法对丙烯腈废水进行脱盐处理。

Using the proposed vertical rotating packed bed,the acrylonitrile monomer removal efficiency from polyacrylonitrile can be achieved to over 99% upon twice devolatilized.

采用该技术对丙烯腈系聚合物进行两次循环脱挥处理，丙烯腈脱除率达到99%以上。

The content of SF in this polymerizing system does not affect the rates of the said homopolymerization and copolymerization,but causes a drastic change of the average molecular weights of the polyacry...

聚合体系中SF的含量在一定范围内变化时，对AN均聚和AN-MA-SMAS共聚的反应速度均无影响，但引起聚丙烯腈和丙烯腈共聚物的平均分子量的急剧变化。

The copolymer derived from the copolymerization in high capacity kettle were testified that copolymerization between AN and MMA occurred. The microcapsules in the films are distributed in the copolymer film matrix. The heat-absorbing temperatures and heat-evolving temperatures of the films are almost the same as that of the MOCT, respectively. In addition, the enthalpy efficiency of MOCT, the melting enthalpy and the crystallizing enthalpy rises with the contents of MOCT increasing.The decomposition temperature of copolymers in the films containing various contents of MOCT decreases with the contents of MOCT increasing.

采用30升聚合釜合成了丙烯腈—甲基丙烯酸甲酯共聚物，证实了丙烯腈和甲基丙烯酸甲酯发生了共聚反应；正十八烷微胶囊分散和镶嵌到了共聚物膜基体中；正十八烷微胶囊含量不同的共聚物膜的吸热温度放热温度与纯正十八烷微胶囊的吸放热温度基本相同；随着正十八烷微胶囊含量的增加，共聚物膜的热焓和热效率逐渐增加；共聚物膜中的共聚物的热稳定性温度随着正十八烷微胶囊含量的增加逐渐减小，共聚物膜的结晶度则有所增大。

AS commonly known as SAN, GPPS.In the meantime to address the deficiencies and improve the thermoplastic resins, AS resin is styrene and acrylonitrile polymerization. AS itself as a bit of light-yellow transparent resin, acrylonitrile as many features, AS has excellent hardness, Resistance good character, rigid advantages; AS it has been widely used in electrical equipment, cosmetics containers.

毕业论文字数：14096页数：27）摘要 AS俗称SAN，为针对GPPS的缺失而改良的热可塑性树脂，AS树脂是由苯乙烯和丙烯腈聚合而成，AS本身为略带浅黄色的透明树脂，由于丙烯腈的诸多特性，AS具有硬度佳、耐药品性好、刚性强等优点，；因此AS被广泛应用于电气器具、化妆品容器、汽车部件或其它杂货等。

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。