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Title: Applications, synthesis and catalyst design for oxygenated polymers
Author: Stoesser, Tim Alexander
ISNI:       0000 0004 7652 9461
Awarding Body: University of Oxford
Current Institution: University of Oxford
Date of Award: 2018
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The main focus of this thesis is the synthesis of oxygenated block copolymers. These are attractive materials for a range of applications; however, they are typically associated with time- and labour-intensive synthetic procedures. For this reason, a more efficient one pot combination of two different polymerisation mechanisms, anhydride/epoxide ring-opening copolymerisation (ROCOP) and lactone ringopening polymerisation (ROP), with a single catalytic system was investigated. Three major advances in 'switch' catalysis are presented herein: (i) The use of the first chromium salen catalyst, (ii) propylene oxide was accessed as a monomer and (iii) the synthesis of block polyesters from a fully commercial feedstock featuring propylene oxide, phthalic anhydride, (rac)-lactide. With these insights, new 'switch' catalysts were developed and (potentially) bio-based polycarbonates were tested as future coating materials.
Supervisor: Williams, Charlotte Sponsor: EnCO2re
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available