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Methacrylate homo and copolymers with controlled architecture as adhesive viscosity modifiers in UV curable ink-jet inks

Osborne, Gemma Methacrylate homo and copolymers with controlled architecture as adhesive viscosity modifiers in UV curable ink-jet inks. Master of Science by Research (MScRes) thesis, University of Kent,. (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:47949)

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Abstract

Reversible addition-fragmentation chain transfer (RAFT) controlled polymerisation was used to prepare a range of methacrylate polymers;- poly(methyl methacylate) (PMMA), poly(n-butyl methacrylate) (PnBMA), poly(hexyl methacrylate) (PHMA) and poly(methyl methacrylate)-co-poly(n-butyl methacrylate) (PMMA-co-PnBMA) with a range of molecular weights. The resulting polymers were characterised by 1H and 13C NMR spectroscopy and the molecular weights and distributions determined by gel permeation chromatography (GPC).

The addition of the PMMA, PnBMA and PMMA-co-PnBMA copolymer enabled control over viscosity both by concentration and molecular weight. PHMA provided minimal control over viscosity at 3 wt% addition with varying molecular weight.

The effect on polymer architecture therefore, appears to have a significant effect on the level of adhesion achieved under the test conditions outlined within the project. Although a significant correlation between molecular weight and viscosity was observed no significant difference was detected between adhesion and molecular weight.

Measured surface free energy (ys) using static contact angle is an effective method of determining the true surface characteristics of printing substrates; however this study determined that a correlation to high and low surface energy and good and poor adhesion is not easily identifiable.

Item Type: Thesis (Master of Science by Research (MScRes))
Thesis advisor: Holder, Simon
Uncontrolled keywords: RAFT Polymer synthesis
Subjects: Q Science > QD Chemistry
Divisions: Divisions > Division of Natural Sciences > School of Physical Sciences
Depositing User: Users 1 not found.
Date Deposited: 13 Apr 2015 10:00 UTC
Last Modified: 16 Feb 2021 13:24 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/47949 (The current URI for this page, for reference purposes)
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