The catalytic systems and polymerization mechanism of styrene syndiotactic polymerization were reviewed with 29 references.
对苯乙烯间规聚合的催化体系,聚合机理和研究现状等方面进行了较全面地综述。
The flow curves of cis 1,4-polybutadiene prepared by four different catalytic systems have been measured by a capillary rheometer.
用毛细管流变仪测定了四种不同催化体系高顺式1,4-聚丁二烯的流动曲线。
The reversible nature of supramolecular gels seems ideal for the use of stimulus-controlled catalytic systems by environmental stimuli.
超分子凝胶通过外界刺激可以可逆变化的性质为利用刺激可控催化体系提供了基础。
This paper introduces the mechanism of RATRP, and summarizes the research progress of RATRP in terms of monomers, initiators and catalytic systems.
文中介绍了反向atrp的建立原理,从单体、引发剂、催化体系等方面综述了反向atrp的研究进展。
The results showed that LLDPE with a density of 0. 92~0. 94 and a narrow composition distribution can be easily produced by the bifunctional catalytic systems.
结果表明,利用双功能均相催化体系可方便地获得相对密度为0.92~0.94、组成分布窄的线型低密度聚乙烯。
Some catalytic systems for the synthesis of glutaraldehyde by one step catalytic oxidation of cyclopentene and hydrogen peroxide in a non water solvent were studied.
对在非水溶剂存在下过氧化氢一步催化氧化环戊烯制备戊二醛过程中的催化体系进行了研究。
The rolabilities of raw rubbers of high cis 1,4-polybutadienes prepared by four different catalytic systems were examined as a function of temperature and nip width.
研究了四种催化体系的高顺式1,4-聚丁二烯生胶包辊性与温度及辊距的关系。
New methods for asymmetric synthesis of pinacol are reviewed, the catalytic effects and stereoselectivity with various catalytic systems are discussed in this paper.
综述了近年来不同催化体系的不对称合成呐醇的方法,并总结了不同的催化效率和对映选择性的差异。
New methods for asymmetric synthesis of pinacol are reviewed, the catalytic effects and stereo - selectivity with various catalytic systems are discussed in this paper.
综述了近年来不同催化体系的不对称合成呐醇的方法,并总结了不同的催化效率和对映选择性的差异。
Using DSC-Coulometric Nitrogen Oxide Detector, Time of Flight Mass Spectrometer, the authors studied the thermal decomposition characteristics of HMX and its catalytic systems.
用DSC -库仑池联用仪和飞行时间质谱仪对HMX及其催化体系的热分解进行了研究。
The catalytic systems containing the surface-active phosphine show a clear matching relation between the length of olefin chain and hydrophobic chain of the surface-active phosphine.
在催化烯烃氢甲酰化反应时,观察到烯烃与膦配体之间有一定的链长匹配效应;
The direct synthesis of carbonates can be carried out both in homogeneous and heterogeneous catalytic systems. Supported metals, metal methoxides and bases can all be used as catalysts.
碳酸酯的直接合成可在均相及多相催化体系中进行,负载金属、金属甲氧基化合物及碱均可作为催化剂。
The two catalytic systems can be recycled twice and three times, respectively, with very low enantioselectivities for the oxidation of phenyl methyl sulfide with 30% H2O2 as oxidant in acetone.
以丙酮为溶剂,30%H2O2为氧化剂,两种体系催化苯甲硫醚氧化反应分别可以循环使用两次和三次,但产物亚砜的对映选择性很低。
The effect of internal noise on mesoscopic chemical dynamics is studied using stochastic simulation and chemical Langevin equations, with special focus on surface catalytic systems and life systems.
以生命和表面催化体系为对象,研究了介观化学体系中内涨落对体系非线性动力学行为的调控作用。
Inherent laws between the average binding energy of valence orbits of molecular systems and the catalytic activity of metal oxides are found by analysis.
通过分析,我们发现了分子体系的价层轨道平均结合能与金属氧化物催化活性间的内在规律。
Maintain low emissions: Comma Motor Oils are friendly toward modern emission control systems, helping improve catalytic converter service life for low exhaust emissions.
维持低排放:满足主流发动机废气排放控制系统的配套要求,有利于提高催化转换器低废气排放的使用寿命。
The catalytic kinetic spectrophotometric method has been studied on and the trace Cr and Pd in new systems have been determinated with a catalytic kinetic spectrophotometric method in this thesis.
本文对催化动力学光度分析法进行了研究,并应用催化动力学光度法分别建立了测定痕量铬和痕量钯的新体系。
In this paper, optimal control theory of distributed parameter systems is applied to optimal design of CatalYtic tubular reactors.
本文应用分布参数系统最优控制理论到触媒管式反应器的最优设计。
This invention disclosed systems and methods of producing heat in a fluid catalytic cracking unit.
本发明公开了一种在流化催化裂化单元中生成热量的系统和方法。
It is stated that advanced control and diagnostic sensors play a key role in car antipollution devices such as catalytic converters, electronic fuel injection, and exhaust-gas recycle systems.
本文论述了先进的控制型和诊断型传感器在催化转换器、电子喷油器和废气再循环系统等汽车防污染装置中所起的关键作用。
It is stated that advanced control and diagnostic sensors play a key role in car antipollution devices such as catalytic converters, electronic fuel injection, and exhaust-gas recycle systems.
本文论述了先进的控制型和诊断型传感器在催化转换器、电子喷油器和废气再循环系统等汽车防污染装置中所起的关键作用。
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