链增长反应

结果表明：链增长反应为扩散控制过程。

The results showed that the propagating reaction was a diffusion controlled process .

在一些离子型活性聚合反应体系中，存在两种具有链增长反应活性的物种，例如自由离子和离子对。

In several ionic living polymerization systems , there are two kinds of active species such as ion pairs and free ions , or contact ion pairs and solvent separated ion pairs .

铜钴催化剂上碳链增长基元反应动力学的研究

Kinetics in carbon chain growth elementary reaction on Cu-Co catalyst

双活性基团的染料单体可顺利参与溶液共缩聚反应中的链增长过程，反应活性与乙二醇相近，聚合型染料的产率和粘均分子量都很高；

The monomeric dye with two active groups has no negative effect on solution polycondensation reaction .

应用MonteCarlo方法模拟聚合反应中链增长和链交换反应速率常数，结果表明每一个活性中心接受约6个单体插入后发生链转移反应结束该聚合链增长。

Monte Carlo method has been developed to estimate the chain propagation constant and exchange reaction constant . In average , one exchange reaction will occur after approximate six monomer molecules insert into the growing chain .

1，3-二酮的自由基链增长和扩环反应

The Radical Chain Extension and Ring Expansion of 1,3-Diketones

本文考察了Fe（naph）2-Al（iBu）3卤化物体系催化丁二烯聚合的链引发、链增长和链终止反应。

Initiation , propagation and termination of the polymerization of butadiene catalyzed by Fe ( naph ) _2 Al ( I Bu ) _3 Halides system have been investigated .