3475390
doi
10.1002/pola.26832
oai:zenodo.org:3475390
Andreas F.M. Kilbinger
Narrowly distributed homotelechelic polymers in 30 minutes: Using fast in-situ pre-functionalised ROMP initiators.
Nils Hanik
info:eu-repo/semantics/openAccess
Creative Commons Attribution 3.0 Unported
https://creativecommons.org/licenses/by/3.0/legalcode
<p>Today'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 "one-pot" synthesis for narrow polydispersity bis-end-functional (=homotelechelic) ROMP polymers exploiting the propagating ruthenium complex' 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's functionality tolerance). Complete pre-functionalisation of the initiator is realised <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. <sup>1</sup>H-NMR spectroscopic and MALDI-ToF-MS analysis show highly efficient end group functionalisation.) </p>
Zenodo
2013-07-03
info:eu-repo/semantics/article
3475389
1579540204.840783
741042
md5:e989de09ef3293bb631757bba4ccf8e1
https://zenodo.org/records/3475390/files/manuscript.pdf
public