polymerization catalyst


polymerization catalyst
катализатор полимеризации

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  • Polymerization — An example of alkene polymerization, in which each Styrene monomer unit s double bond reforms as a single bond with another styrene monomer and forms polystyrene. In polymer chemistry, polymerization is a process of reacting monomer molecules… …   Wikipedia

  • polymerization — /peuh lim euhr euh zay sheuhn, pol euh meuhr /, n. Chem. 1. the act or process of forming a polymer or polymeric compound. 2. the combination of many like or unlike molecules to form a more complex product of higher molecular weight, with… …   Universalium

  • polymerization — noun /ˈpɒl.ɪ.mə(ɹ).aɪˌzeɪ.ʃən/ The chemical process, normally with the aid of a catalyst, to form a polymer by bonding together multiple identical units (monomers). Ant: depolymerization See Also: polymerize …   Wiktionary

  • polymerization —    A chemical reaction, usually carried out with a catalyst, heat, or light, in which two or more relatively simple molecules (monomers) combine to form a chainlike macromolecule, or polymer. When comprised of two monomers a polymer is called a… …   Forensic science glossary

  • Post-metallocene catalyst — A post metallocene catalyst is a kind of catalyst for olefin polymerization. Post metallocene refers to the generation of catalysts following Kaminsky catalysts, which are metallocene catalysts discovered in 1980 by Walter Kaminsky, and have been …   Wikipedia

  • Chain shuttling polymerization — is a dual catalyst method for producing block copolymers with alternating or variable tacticity. The desired effect of this method is to generate hybrid polymers that bear the properties of both polymer chains, such as a high melting point… …   Wikipedia

  • Ziegler–Natta catalyst — A Ziegler–Natta catalyst is a catalyst used in the synthesis of polymers of 1 alkenes (α olefins). Three types of Ziegler–Natta catalysts are currently employed: Solid and supported catalysts based on titanium compounds. They are used in… …   Wikipedia

  • Living polymerization — In polymer chemistry, living polymerization is a form of addition polymerization where the ability of a growing polymer chain to terminate has been removed Ref|1. This can be accomplished in a variety of ways. Chain termination and chain transfer …   Wikipedia

  • Living free radical polymerization — is a type of living polymerization where the active polymer chain end is a free radical. Several methods exist. IUPAC recommends[1] to use the term reversible deactivation radical polymerization instead of living free radical polymerization .… …   Wikipedia

  • Ziegler-Natta catalyst — A Ziegler Natta catalyst is a reagent or a mixture of reagents used in the production of polymers of 1 alkenes (α olefins). Ziegler Natta catalysts are typically based on titanium compounds and organometallic aluminium compounds, for example… …   Wikipedia

  • Grubbs' catalyst — is a transition metal carbene complex named after the chemist by whom it was first synthesized, Robert H. Grubbs. There are two generations of the catalyst, as shown on the right.Grubbs, R.H. [http://www.wiley… …   Wikipedia

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