The Ring Opening Metathesis Polymerisation Toolbox

Abstract

Summary: The success of metathesis chemistry techniques has sparked a tremendous interest in polymer and material chemistry. This contribution provides an overview of the state of the art in ring opening metathesis polymerisation (ROMP). It is intended to provide the reader with useful information on the interplay of initiators, monomers, and reaction conditions, thus aiding polymer chemists to utilise the ROMP toolbox. Prominent and illustrative examples from current research are given in the article.The “ROMP toolbox”.magnified imageThe “ROMP toolbox”.

Synthesis of High Performance Cyclic Olefin Polymers (COPs) with Ester Group via Ring-Opening Metathesis Polymerization

“…Ru-mediated ROMP, nevertheless, has good tolerance towards various functional groups, which allows for the facile introduction of many different functional groups into COPs [37][38][39][40][41]. In this work, we described the synthesis of high-performance functional COPs containing ester groups by copolymerization of HBM with three different comonomers using the Grubbs first generation catalyst, RuCl2(PCy3)2(CHPh) (Cy = cyclohexyl) (G1), and subsequent hydrogenation (5 in Scheme 2).…”

Ruthenium quinoline and quinoxaline complexes: Thermally triggered initiators for ring opening metathesis polymerization

“…The organic phases were collected and evaporated to dryness. The crude product was purified by column chromatography (SiO 2 (±)-Endo,exo-5,6-bis(ethoxymethyl)bicyclo2.2.1-hept-2-ene (5) NaH (10.24 g, dispersion in mineral oil, 60%, 256.0 mmol) was diluted with THF (100 mL) and a solution of (6)-endo,exo-bicyclo2.2.1-hept-5-ene-2,3-diyl- …”

“…This is due to its living nature and its impressive functional group tolerance when initiated with ruthenium carbene complexes. 1,2 Moreover, metathesis polymerization might also impact the fields of heat or light durable compositions such as coatings and glues. 3 In principal ROMP is of special interest in this context because it allows extremely fast curing, moisture does not hamper the polymerization process and norbornenes, which are frequently used monomers in ROMP, typically show low polymerization shrinkages of 3% and below.…”

Stereo-controlled synthesis of polyolefins with cycloalkane groups by using late transition metals

“…1 Addition polymerization of cyclic alkenes 2,3 and metathesis polymerization of norbornenes [4][5][6] have been used to synthesize these polymers (Scheme 1). Cyclic groups on the monomer can be introduced into the polymer as cis-fused cycloalkane groups.…”