The formation of an addition @O04283-1@, having uniform end groups X' ... X" , by a @C00960@ in which a @C00963@ limits the length of the polymer ('@O04283-2@') produced. An example is the @P04740@ of styrene in bromotrichloromethane solution (X' = CCl3, X" = Br), where Cl3C· radicals are formed in the @I03042@ step to produce Cl3C[CH2CHPh]nBr, with \(n\) greater than 1 and often less than ca. 10:
See also:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1173 [Terms] [Paper]