Synthesis, Characterization, and AFM Studies of Dendronized Polyferrocenylsilanes

Abstract

Dendronized polyferrocenylsilanes were synthesized by a substitution reaction of reactive poly-(ferrocenylchloromethylsilane) with monodendrons with a focal hydroxy group. The resulting dendronized polymers were studied by 1 H NMR, differential scanning calorimetry (DSC), and polarized optical microscopy (POM). To facilitate the direct visualization of single polymer chains by atomic force microscopy (AFM), an interaction chromatography technique (IC) was used to fractionate the polydisperse polymers to separate the high molecular weight dendronized PFSs. AFM studies of the fractionated high molecular weight PFSs revealed a spherical cocoon for the single chains of the dendronized polymer as well as elongated single-chain structures. The cocoon of the dendronized PFS could be interesting as a unimolecular micelle with the transition-metal-rich core which is isolated by the dense outer layer of the dendrons.

Tailoring dendronized polymers

“…Moreover, denpols with surface and backbone coated with functional groups like ferrocenyls were prepared. 61,84…”

New ROMP Synthesis of Ferrocenyl Dendronized Polymers

“…Due to their unique tailorable structures and physicochemical properties, dendronized polymers have attracted significant attention in the field of nanoscience and bioscience . Few reports have focused on the synthesis and application of dendronized metallopolymers; however, presumably due to their challenging synthesis . Generally, the approaches of the construction of dendronized polymers involve convergent “graft‐to”, divergent “graft‐from”, and macromonomer strategies .…”

Silicon Bridge-Tuned Electronic Structures and Transport Properties of Polymetallocenes

“…Bridge linked polymetallocenes have attracted continuous interest over the past decade due to their unusual electrical, magnetic, and optical properties [1][2][3][4][5][6][7][8] . A broad variety of such polymers has been synthesized in laboratory.…”