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SUMMARY:Switchable Polymerization Catalysis: Ordered Block Polymers from M
 onomer Mixtures - Prof. Charlotte Williams (University of Oxford)
DTSTART:20190315T120000Z
DTEND:20190315T130000Z
UID:TALK121687@talks.cam.ac.uk
CONTACT:Lingtao Kong
DESCRIPTION:This lecture builds upon the catalysis described in the first 
 lecture and describes a recently discovered catalysis which allows a singl
 e catalyst to switch between different catalytic cycles by control of the 
 chain end-group chemistry.  In 2014\, the Williams research team discovere
 d a new type of switchable polymerization catalysis \, whereby a single ca
 talyst selectively enchain monomer mixtures to produce block sequence sele
 ctive polymers.[5] This lecture will set out the pathway from this discove
 ry and outline the evidence supporting switchable catalytic process\, incl
 uding kinetic studies\, and the underpinning mechanistic hypothesis.[6]  I
 t will also demonstrate the process is generalizable to a range of new and
  known catalysts and monomers.[7]  It focuses on the controlled and select
 ive formation of multi-block polymers comprising ester\, ether and carbona
 te linkages.  It also identifies early-stage research towards applications
  for such polymers as thermoplastic elastomers\, rigid plastics and medica
 l materials[8]  \n
LOCATION:Wolfson Lecture Theatre
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