Depending upon reaction conditions, the product may be a polyketone formed by addition polymerization of the ketene double bond.
随着反应条件的不同，产物可以是由烯酮的双键加成聚合得到的聚酮。
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。
Urea addition has been proved to be effective for the polymerization process.
尿素的添加对产物的聚合长大过程起了促进作用。
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