Functionalization of Poly(ferrocenyldimethylsilane) via Lithiation of the Cyclopentadienyl Rings

Synthesis and Properties of Symmetrical and Asymmetrical Polyferrocenylmethylenes

The synthesis of differently substituted polyferrocenylmethylenes (PFM) via ring-opening transmetalation polymerization (ROTP) is reported. A number of novel, symmetrically and asymmetrically substituted carba[1]magnesocenophanes have been prepared, which were used as precursors and allowed investigations of the influence of different substitution patterns on the PFM polymer properties. The novel carba[1]magnesocenophanes have been fully characterized by 1H and 13C{1H} NMR spectroscopy, and structurally authenticated by single-crystal X-ray diffraction (SC-XRD). The corresponding PFMs were obtained with molecular weights in a range of Mw=1900 g mol-1 up to 15100 g mol-1 and corresponding dispersities of Đ=1.48 to 1.81. All PFMs have been fully characterized by 1H and 13C{1H} NMR spectroscopy, as well as by gel permeation chromatography (GPC), thermal gravimetric analysis (TGA) and matrix assisted laser desorption ionization-time-of-flight (MALDI-ToF) mass spectrometry. Pyrolysis of spyrocyclic substituted PFM resulted in a ceramic yield above 50 %, while the obtained residue was characterized by powder X-ray diffraction (PXRD).

Polyferrocenylsilanes: synthesis, properties, and applications

This comprehensive review covers polyferrocenylsilanes (PFSs), a well-established, readily accessible class of main chain organosilicon metallopolymer. The focus is on the recent advances involving PFS homopolymers and block copolymers and the article covers the synthesis, properties, and applications of these fascinating materials.