Journal article Open Access

Narrowly distributed homotelechelic polymers in 30 minutes: Using fast in-situ pre-functionalised ROMP initiators.

Nils Hanik; Andreas F.M. Kilbinger


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{
  "DOI": "10.1002/pola.26832", 
  "author": [
    {
      "family": "Nils Hanik"
    }, 
    {
      "family": "Andreas F.M. Kilbinger"
    }
  ], 
  "issued": {
    "date-parts": [
      [
        2013, 
        7, 
        3
      ]
    ]
  }, 
  "abstract": "<p>Today&#39;s olefin metathesis catalysts show high reactivity, selectivity and functional group tolerance and allow the design of new syntheses of precisely functionalised polymers. Here we describe a general &quot;one-pot&quot; synthesis for narrow polydispersity bis-end-functional (=homotelechelic) ROMP polymers exploiting the propagating ruthenium complex&#39; inherent selectivity for strained norbornenes over acyclic internal olefins. This approach represents a straightforward general method of homotelechelic polymers carrying almost any functional end group (within the limitations of the catalyst&#39;s functionality tolerance). Complete pre-functionalisation of the initiator is realised&nbsp;<em>in-situ</em>within minutes and without the need of further purification steps. The excess acyclic olefin re-enters the catalytic cycle after monomer consumption is complete giving a homotelechelic polymer.&nbsp;<sup>1</sup>H-NMR spectroscopic and MALDI-ToF-MS analysis show highly efficient end group functionalisation.)&nbsp;</p>", 
  "title": "Narrowly distributed homotelechelic polymers in 30 minutes: Using fast in-situ pre-functionalised ROMP initiators.", 
  "type": "article-journal", 
  "id": "3475390"
}
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