Thesis-2000-Houseman.pdf (22.99 MB)
Branched chains in poly(methyl methacrylate) polymerisations incorporating a polymeric chain transfer agent
thesis
posted on 2018-09-13, 08:14 authored by Jonathan HousemanBranching 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.
Funding
EPSRC. ICI Acrylics Ltd.
History
School
- Science
Department
- Chemistry
Publisher
© Jon HousemanPublisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2000Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.Language
- en