丙烯腈

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。

A novel Belousov-Zhabotinskii type oscillating reaction was observed in a closed serine-BrO^-~3-Mn^2^+- H2SO4 system(Ser-BZ system), which exhibited the followign characteristics:(1)Although Ser is unable to be brominated, the sustained oscillations could still be observed in the above system under batchreactor conditions even in the absence of either acetone or inert gas flow.(2)The present oscillations displayed extremely short induction period(0) and very few oscillation number(1).(3)Cl^-, acrylonitrile, or Br^- could effectively inhibit the oscillations. However, in the case when enough Ag^+ was addedinto the system to completely inhibit the oscillations in , the oscillations on the Pt-electrode could still be observed.

首次报道了间歇釜中以丝氨酸-BrO^-~3-Mn^2^+-H2SO4为体系的新型BZ类振荡反应，其特征如下：(1)虽然Ser不能发生溴代反应，但即使在无丙酮或惰性气体流时也能在间歇釜中观察到持续振荡；(2)振荡诱导期极短(～0)，振荡次数较少(1次)；(3)振荡反应受到Cl^-，Br^-，丙烯腈等的抑制；但当加入足够量Ag^+使的振荡抑制后，仍可在Pt电极上观察到振荡现象。

Polyacrylonitrile nanofibers are fabricated by electrospinning and are oxidatively stabilized at 250℃ then pyrolyzed at 850℃ for carbon nanofiber s.

用静电纺丝的方法制得聚丙烯腈纳米纤维，并在250℃下预氧化，850℃下炭化，得到碳纳米纤维。

The degradation properties of sulfide flotation collectors such as Xanthogenate, Dithiocarbamate, Dithiophophate, N,N-dialkyl-dithiocarbamatecyanoethylene and Thionocarbamate are studied in this paper.

论文研究了黄原酸盐、氨基二硫代甲酸盐、二硫代磷酸盐、氨基二硫代丙烯腈酯、氨基硫逐甲酸酯等硫化矿捕收剂的降解性能。

Adsorption and removal tests of SO2 in simulated industrial flue gas were done with polyacrylonitrile activated carbon fiber in the fluidized state. Some influencing factors such as the flux and temperature of flue gas, mass concentration of SO2 and volume fraction of vapor in flue gas, recycle ratio of ACF, and mass flux of new ACF on the desulfuration efficiency of PAN-ACF were investigated.

应用流化状态下的聚丙烯腈基活性碳纤维对模拟的工业烟气中的SO2进行吸附脱除实验，通过改变烟气流量、烟气温度、烟气中水蒸气的体积分数及SO2的质量浓度、ACF的循环比及新加入ACF的质量流量，研究了流化状态下ACF脱除SO2效率的影响因素与变化规律。

The influences of operation conditions such as reaction temperature and space velocity et al on catalytic performances were investigated.

在丙烯腈废气净化侧线评价装置上，对自制的含Pt，Pd贵金属蜂窝状燃烧催化剂进行了性能评价，并考察了反应温度、空速等操作条件对催化性能的影响。

PANOF is a new kind of high temperature resistance organic fiber, which is promising on the fields of fire-proof and flame retarding, etc.

聚丙烯腈预氧化纤维是一种新型耐高温的有机纤维，在防火、阻燃等领域具有广泛的应用前景。

The decomposed temperature increases and the glass transition temperature decreases as the molar ratio of MA rises. The copolymer molar containing 30% of MA melts at approximately 188℃, which is significantly lower than the decomposed temperature. This copolymer is melt processable and is a potential material for the manufacture of PAN fibers.

含MA30mol%的共聚物的分解温度为338.8℃，而熔融温度仅为188.8℃，由于第二单体MA的加入，使得共聚物的熔点降低至分解温度之前，这为改性聚丙烯腈的无增塑熔融纺丝提供了可能性。

Supercritical water oxidation was studied for organic wastewater mainly containing butyl alcohol, acrylonitrile, fumaric acid by a continuous self-built device.

本文利用自建的一套连续式装置进行了三种有机废液(主要的有机污染物成份分别是丁醇、富马酸和丙烯腈)的超临界水氧化研究。

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。