Two-component latent metal carbene catalytic system, dicyclopentadiene polymerization double-material system and polydicyclopentadiene composite material

Abstract

The invention belongs to the technical field of novel materials, particularly relates to a two-component latent metal carbene catalytic system, further relates to a dicyclopentadiene polymerization bi-material system, and further relates to a polydicyclopentadiene composite material. The two-component latent metal carbene catalytic system is composed of a mixture of metal carbene and trialkyl phosphine and halogenated hydrocarbon. The metal carbene is one or more of ruthenium metal carbene, molybdenum metal carbene and ruthenium metal carbene; the structural general formula of the trialkylphosphine is as shown in the specification: the structural general formula of the halogenated hydrocarbon is XCH2R, wherein X is one of chlorine, bromine and iodine, and R is any one of vinyl, substitutedvinyl, phenyl, substituted phenyl, naphthyl, substituted naphthyl and acetonitrile. When the two-component latent metal carbene catalytic system is applied to a double-material reaction system of a reaction injection molding process, the storage time of the double-material system can be prolonged, and the two-component latent metal carbene catalytic system is suitable for industrial catalytic synthesis of PDCPD.

Description

technical field [0001] The invention belongs to the technical field of new materials, and specifically relates to a two-component latent metal carbene catalytic system, a dicyclopentadiene polymerization double material system, and a polydicyclopentadiene composite material. Background technique [0002] Polydicyclopentadiene (PDCPD) is a new type of engineering material with good mechanical and physical properties. It has high impact strength and high flexural modulus, and is suitable for surface decoration and structural components. Using the existing reaction injection molding (RIM) process, the manufacturing process of PDCPD workpieces is flexible and simple, so PDCPD is widely used. [0003] PDCPD is formed by ring-opening metathesis polymerization of dicyclopentadiene (DCPD) under the action of a catalyst. The catalyst commonly used in industrial production is a two-component catalyst composed of metal tungsten and molybdenum compounds and a co-catalyst organoaluminum ...

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Problems solved by technology

[0004] The article "Controlling the Rate of Dicyclopentadiene Ring-opening Shift Polymerization Using Grubbs Catalyst" discloses a dual-material system using Grubbs as the catalyst and triphenylphosphine as the telogen, but the storage time of the dual-material system is still relatively short , which is not conducive to large-scale production (Sun Chunshui et al., Chemical Reaction Engineering and Technology, Volume 27, Issue 3, June 2011)