http://general-terms.thesaurus.ekt.gr/vocabhttp://general-terms.thesaurus.ekt.gr/vocab?tema=12025ionic polymerizations http://general-terms.thesaurus.ekt.gr/vocab?tema=12025 chain polymerizations BT http://general-terms.thesaurus.ekt.gr/vocab?tema=12025 cationic polymerizations NT http://general-terms.thesaurus.ekt.gr/vocab?tema=12025 Ziegler - Natta polymerizations NT http://general-terms.thesaurus.ekt.gr/vocab?tema=12025 anionic polymerizations NT