This radical attacks the carbonyl group to an intermediate bicyclic ketyl.
烷基自由基对羰基进行进攻，生成双环的羰自由基中间体。
A stable radical intermediate is a necessary requisite to loss of carbon dioxide.
一个稳定自由基的中间体是脱除二氧化碳所需的必要条件。
Z-1 was synthesized in water solution through radical polymerization. Intermediate isomer is one of the most important isomers.
复鞣剂Z - 1是活性单体在水溶液中通过自由基共聚合而得到，中间活性大分子单体为主要反应单体。
METHODS The reaction product and free radical intermediate in the reaction medium with or without antioxidants and other moderators was detected by spectrophotometry and electron spin resonance(ESR).
方法用分光光度法和电子自旋共振技术（ESR）检测加入或未加抗氧化剂等调节物的反应体系中反应产物及自由基中间产物的生成情况。
As hydrogen peroxide and free radical intermediate participate in enzyme deactivation, loss of catalytic activity of HRP in phenol oxidative polymerization can be greatly accelerated.
催化酚和过氧化物的氧化反应中，反应物和产物参与酶的失活过程，使失活速率增加；
As hydrogen peroxide and free radical intermediate participate in enzyme deactivation, loss of catalytic activity of HRP in phenol oxidative polymerization can be greatly accelerated.
催化酚和过氧化物的氧化反应中，反应物和产物参与酶的失活过程，使失活速率增加；
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