Post‐Modification of Organoiron Poly(alkynyl methacrylate)s with Dicobalt Hexacarbonyl

Abstract

Radical polymerization of organoiron (alkynyl methacrylate)s afforded a series of organoiron poly(alkynyl methacrylate)s with the ability to coordinate dicobalt hexacarbonyl. The polymers were post-modifi ed with dicobalt hexacarbonyl moieties through reaction with dicobaltoctacarbonyl. Gel permeation chromatography indicated that the polymers possessed weight average molecular weights between 17 800 Da and 33 900 Da with PDIs between 1.3 and 1.6. Thermal analysis revealed that the polymers possess glass transition temperatures between 78 and 138 ° C.

Sandwich Complex‐Containing Macromolecules: Property Tunability Through Versatile Synthesis

“…Other ferrocene‐containing monomers such as methacrylate and acrylate have been shown to undergo radical polymerization . For example, Pittman and co‐workers demonstrated the feasibility of AIBN‐catalyzed, free radical homopolymerization of ferrocenylmethyl acrylate and ferrocenylmethyl methacrylate in benzene solution.…”

“…Thermal treatment of the polymer afforded magnetic iron oxides that exhibited ferromagnetic behavior and nanoparticle structure as suggested by temperature‐dependent SQUID magnetization measurements and TEM images, respectively . Recently, Abd‐El‐Aziz and co‐workers reported the AIBN‐catalyzed free radical polymerization of neutral ferrocene‐ or cationic η 6 ‐aryl‐ η 5 ‐cyclopentadienyliron‐containing methacrylate monomers (Scheme ) . Subsequent to the polymerization was the post‐modification of the poly(alkynyl methacrylate)s with dicobalt hexacarbonyl, to afford their bimetallic analogues (Scheme ).…”

“… a) T g was taken from the second run after the CO groups had been removed. Reproduced with permission . Copyright 2012, WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim.…”

“…AIBN‐catalyzed radical polymerization of neutral ferrocene‐ or cationic η 6 ‐aryl‐ η 5 ‐cyclopentadienyliron‐containing methacrylate monomers …”

Synthesis and Solid-State Pyrolysis Behavior of POSS Containing Organometallic Polymer with Dicobalt Hexacarbonyl in the Side Chain

“…Especially, through the pyrolysis process, organometallic polymers can be easily pyrolyzed to produce magnetic ceramics [20]. There are various polymerization reactions used to prepare organometallic polymers, and much excellent work had focused on transforming organometallic precursors to functional magnetic materials [21][22][23][24][25][26][27][28][29][30][31].…”