Access to Heterogeneous Atom-Transfer Radical Polymerization (ATRP) Catalysts Based on Dipyridylamine and Terpyridine via Ring-Opening Metathesis Polymerization (ROMP)

摘要: Full Paper: A series of dipyridylamine and terpyridine derivatives, norborn-2-ene-5-di(pyrid-2-yl)carbamide (1), 49-(norborn-2-ene-5-ylmethyleneoxy)terpyridine (2), di-(pyrid-2-yl)acetamide (3) bis(49-(norborn-2-ene-5ylmethyleneoxy)-2,29:69,299-terpyridine)iron(II) hexafluorophosphate (4) have been synthesized. Linear homopolymers, poly-1 poly-2, as well grafted coated silica- PS-DVB-based polymer supports prepared therefrom via ring-opening metathesis polymerization (ROMP). Monomer 3, poly-1, poly-2 loaded with Cu (I), (II), Fe (II) Hg salts, respectively. These metal complexes based on compounds 1, 2 4 subsequently used for homogeneous heterogeneous atom-transfer radical (ATRP) styrene. Systems silica (I) were found to work best. Under optimum conditions, polystyrene was obtained in 30% yield polydispersity indices a 1.6 within h remaining content the ng/g (ppb)-range.