Alternating ring-opening copolymerization of cyclohexene oxide with phthalic anhydride catalyzed by iron(III) salen complexes

0443085 - ÚMCH 2016 RIV KR eng J - Journal Article
Mundil, R. - Hošťálek, Z. - Šeděnková, Ivana - Merna, J.
Alternating ring-opening copolymerization of cyclohexene oxide with phthalic anhydride catalyzed by iron(III) salen complexes.
Macromolecular Research. Roč. 23, č. 2 (2015), s. 161-166. ISSN 1598-5032. E-ISSN 2092-7673
Institutional support: RVO:61389013
Keywords : polyesters * iron salen complexes * catalysis
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 1.357, year: 2015

A series of three iron(III) salen complexes was synthesized and successfully used for copolymerization of cyclohexene oxide and phthalic anhydride. Catalytic systems based on an iron(III) salen complex in combination with 4-(dimethylamino)pyridine (DMAP) or bis(triphenylphosphine)iminium chloride (PPNCl) cocatalysts produced purely alternating copolymer with narrow molar mass distributions. [N,N′-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexylenediamine] iron(III) chloride was the most active complex and afforded the copolymer even in the absence of the cocatalysts. Other iron complexes were completely inactive in absence of a cocatalyst. Both DMAP and PPNCl alone were able to catalyze the copolymerization, affording purely alternating copolymers in good yields.
Permanent Link: http://hdl.handle.net/11104/0245855