| http://www.w3.org/ns/prov#value | - Typical polymerization initiators include alkali metals such as lithium, sodium, potassium, cesium and rubidium; radicalions such as alkalimetal adducts of condensed ring aromatics such as naphthalene, biphenyl, anthracene and phenanthrene; monofunctional alkyl and arylalkyl carbanions such as n-butyl lithium, secbutyl lithium, sec-am'yl lithium, t-hexyl lithium, phenyl as acrylonitrile, isopropy
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