Regular vinyl addition polymers may be obtained from particularly strained endocyclic double bonds.

由带特殊张力的桥环双键可以得到规整的乙烯类加成聚合物。

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In addition polymerization, the monomer need have only one functional group - the presence of two or more functional groups usually leads to the production of cross-linked addition polymers.

而在加聚反应中，每个单体只要有一个官能团即可，如果一个单体有两个或更多的官能团，通常将导致交联的加聚物的形成。

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Polymers are most commonly formed by two main types of growth reaction traditionally referred to us condensation (step reaction) and addition (chain reaction) processes.

形成聚合物的最普通方式是靠两种主要的增长反应，习惯上分别称做缩合（逐步反应）过程和加成（链式反应）过程。

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