acyclic diene metathesis mechanism



Die acyclische Dienmetathese-Polymerisation (englisch acyclic diene metathesis), auch ADMET-Polymerisation genannt, ist eine Variante der Alkenmetathese, bei der Diolefine mit endständigen Doppelbindungen (α,ω-Diene) in einer als Stufenwachstumsreaktion ablaufenden Gleichgewichtsreaktion in Gegenwart von
Acyclic diene metathesis or 'ADMET' (distinguish from ADME) is a special type of olefin metathesis used to polymerize terminal dienes to polyenes: ADMET. The new double bonds formed can be in cis- or trans-configuration, the exact ratio depends on the monomer and catalyst structures. It is a type of step-growth,
Abstract. The history of and major advances in the acyclic diene metathesis (ADMET) reaction are described. Because precise branch identity and frequency can be achieved by ADMET polymerizations of symmetrical α,ω-dienes, polyethylenes with precisely spaced alkyl branches of specified length have been prepared.
Acyclic Diene Metathesis (ADMET) polymerization was established decades ago and has since developed into a robust and reliable technique. A wide range of different, new materials exhibiting unique properties has been produced via ADMET polymerization since its development. This versatile technique allows, through
23.09.2009 -
4.2 Catalysts in Acyclic Diene Metathesis (ADMET) Chemistry. 107. Ring Opening Metathesis Polymerization (ROMP). The olefin metathesis reaction, which has been studied for more than 40 years, contin- ues to intrigue chemists with respect to the many new molecules that can be synthe- sized using this technique.
19.07.2016 -
01.05.1991 -
Chemistry 318N. Metathesis. From Dictionary.com. 1. the transposition of letters, syllables, or sounds in a word, as in the pronunciation aks or ask. 2. In chemistry, reaction whose result is the interchange of two parts of two substances to ... acyclic diene metathesis (ADMET) ring opening metathesis polymerization (ROMP).
30.03.2015 -

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