chain initiation

Study on the chain initiation of catalytic cracking reaction in MIP PROCESS

MIP技术反应过程中裂化反应链引发的机理研究

The chain initiation was accomplished by-OH , the pyrolysis can also produce some radicals of high activity .

链引发主要由·OH完成，其它如热解等也可产生活性极强的自由基。

The ratio of the selectivity of monomolecular reactions to bimolecular reactions was 4.2 ∶ 0.9 during the chain initiation period .

链引发阶段单分子反应与双分子反应选择性的比率为4.2∶0.9。

The simple evolutionary pattern of compound latexes in the cross-linking system was introduced , i.e. chain initiation → cluster generation → cluster increase → cluster interfusion → core ;

提出了交联体系中复合乳胶粒子的简单演化模型，即链引发→簇生成→簇增长→簇融合→成核。

In the chain initiation , because of containing unsaturated bonds in all the reactants , their activity are higher and often reacted by light , heat and other factors .

在聚合反应的链引发反应中，由于反应物中都含有不饱和键，所以其活性较高，往往因光、热等因素的作用而引发聚合。

The peroxide produced by the catalysis of metalloporphyrin accelerates the chain initiation of cobalt acetate in the metalloporphyrin-cobalt acetate catalyzed reaction .

认为在金属卟啉-醋酸钴催化体系中，由金属卟啉催化产生的过氧化物加快了醋酸钴引发自由基链反应的速度，因此整体反应速度加快，对二甲苯转化率提高。

In chain initiation reaction , the inhibitor primarily effects the length of the induction period and the level of difficulty to react . The specific performance are the thermal stability and reaction kinetics of the system .

对于链引发反应，阻聚剂主要影响的是链引发反应的诱导期长短和引发反应进行的难易程度，具体表现在体系的热稳定性和反应动力学上。

The polymerization dynamics of butadiene including chain initiation , chain growth and chain transfer were studied in the paper , under the catalytic system of FeCl_3_Al ( i_Bu ) _3_phen .

进行以FeCl3＿Al（i＿Bu）3＿phen催化剂体系催化丁二烯聚合反应，研究了丁二烯聚合反应的链引发、链增长过程及影响引发速率的因素。

Theoretical calculations have been used to investigate the thermal CO2 reforming of CH4 , It is found that the first step is the CH4 dissociation into CH3 and H radicals for the chain initiation reaction .

在CO2热重整CH4反应机理的研究中发现反应的链起始步骤是CH4解离生成CH3和H自由基。

It was found that the chain initiation and termination reactions were dependent on the species of the block chain active centres and only the lower active species . could initiate α es while the higher active species were terminated rapidly by α MS.

结果表明，链引发和链终止反应与嵌段链活性中心的形态有关，只有嵌段链活性中心的低活性形态才能同αMS发生引发反应，而高活性形态则与αMS发生链终止反应。

Antioxidants can terminate ROS chain reaction by disturbing initiation and propagation steps of the reaction and play important protective role in damage of neurons induced by ROS .

抗氧化剂能够通过干扰ROS链锁反应的启动和蔓延，最终阻断ROS反应过程，在氧化损伤保护中，特别是易受ROS损伤的神经细胞的保护中发挥重要的作用。