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Title: Branched chains in poly(methyl methacrylate) polymerisations incorporating a polymeric chain transfer agent
Author: Houseman, Jonathan
ISNI:       0000 0001 3582 3531
Awarding Body: Loughborough University
Current Institution: Loughborough University
Date of Award: 2000
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Branching in poly(methyl methacrylate) (PMMA) is produced by incorporating a pre-prepared polymeric chain transfer agent (PCTA) into a single stage radical polymerisation. Samples of PCTA having a range of transfer functionalities and molar masses were synthesised by modifying a methacrylate-based copolymer. Control of branching in PMMA has been studied as a function of transfer functionality and molar mass in the PCT A and a function of MMA and initiator concentrations in the MMA polymerisation. The branched samples of PMMA have been characterised by size exclusion chromatography (SEC) with multi-detectors to determine Mark–Houwink and other parameters to assess levels of branching. Some PCTA samples have been prepared with a UV chromophore to facilitate characterisation by SEC-UV.
Supervisor: Not available Sponsor: EPSRC ; ICI Acrylics Ltd
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Molar mass; Size exclusion chromatography