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Synthesis and application of novel colloidal material
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Young, Robert A. (2016) Synthesis and application of novel colloidal material. PhD thesis, University of Warwick.
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WRAP_Theses_Young_2016.pdf - Submitted Version - Requires a PDF viewer. Download (12Mb) | Preview |
Official URL: http://webcat.warwick.ac.uk/record=b3225983~S15
Abstract
Within this thesis we explore the synthesis of novel colloidal particles for the use as both a thermochromic indicator and opacifiers. Initially in Chapter 1 we describe the synthesis of polystyrene copolymers and the effect the co-monomers have upon the phase transitional temperature within dioctyl phthalate. Co-polymers containing varying mol% of copolymers led to a decrease in the transitional temperatures for the systems. Following the determination of the phase transitions, we touched upon the potential to encapsulate the oils and use them within both a soft fibre and a waterborne latex binder as a thermochromic pigment. In Chapter 2 we looked into the synthesis of hollow non-spherical silica particles and their potential use within both ultrasound imaging and films as an opacifying agent. In Chapter 3 we expand upon the use of the silica shells by dispersing them within a PMMA nanocomposite to determine the effect on the mechanical properties. In Chapter 4 we explored further into the UCST systems shown in Chapter 1 with the addition of specialised dye tagging of the polystyrene chains to obtain a fluorescent changes upon phase transition.
| Item Type: | Thesis or Dissertation (PhD) | ||||
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| Subjects: | Q Science > QD Chemistry | ||||
| Library of Congress Subject Headings (LCSH): | Colloids -- Synthesis, Polymer colloids -- Synthesis, Chromic materials, Thermochromism, Silica | ||||
| Official Date: | September 2016 | ||||
| Dates: |
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| Institution: | University of Warwick | ||||
| Theses Department: | Department of Chemistry | ||||
| Thesis Type: | PhD | ||||
| Publication Status: | Unpublished | ||||
| Supervisor(s)/Advisor: | Bon, Stefan Antonius Franciscus | ||||
| Sponsors: | Hempel Group ; Crown Paints | ||||
| Format of File: | |||||
| Extent: | xxii, 321 leaves : illustrations, charts | ||||
| Language: | eng |
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