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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Ballard, Nicholas
Languages: English
Types: Doctoral thesis
Subjects: QD
We have shown new applications and synthetic routes for polymer colloids in the\ud field of home and personal care products by controlling polymer and/or colloidal\ud architectures. Our initial aim was to develop functional particles that imparted beneficial\ud properties to fibrous substrates and as such our first goal was to develop a method for\ud depositing particles onto such surfaces. Chapter 2 describes the method by which we\ud achieved this goal, namely adding a small amount of a low glass transition polymer to\ud an otherwise non-adhesive polymer to enhance colloidal deposition.\ud Following on from this work we looked into ways in which to impart desirable\ud characteristics from the particles onto fibres. In Chapter 3 we describe how the use of a\ud hydrazide functional monomer in polymer gels can provide a continuing slow release of\ud fragrance molecules that reacts to the environment it is held in such that if the local\ud fragrance concentration is low then more is released. In Chapter 4 we describe the\ud synthesis of highly porous particles with controlled pore sizes and the use of such\ud particles in oil absorption for applications in water-free cleaning systems. The particles\ud are capable of carrying many times their own weight in oil and are shown to be\ud reusable.\ud In Chapter 5 we describe a computational model that predicts the ability of a\ud particle to stabilize emulsions. The model is highly adaptable and can be used to predict\ud the surface activity of almost any particle morphology. Chapter 6 builds on this work\ud and described the synthesis of highly anisotropic polymer particles by templating preexisting\ud structures and explains their surface activity, or lack thereof.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • Table 1. 1 'Mutual Recipe' for general purpose rubber (1942) ...................................... 4 Table 2. 1 Recipe for synthesis of 1.8 μm polystyrene microspheres by dispersion polymerization................................................................................................................. 49 Table 2. 2 Recipe for synthesis of 1.3 μm poly(butyl acrylate) microspheres by dispersion polymerization ............................................................................................... 49 Table 2. 3 Recipe for synthesis of biphasic particles by seeded dispersion polymerization................................................................................................................. 50 Table 3. 1 Effect of reaction parameters in the dispersion polymerization of methacryloyl hydrazide................................................................................................... 62 Table 3. 2 The effect of pH on pseudo first order rate constant, k', and the equilibrium position............................................................................................................................ 68 Table 3. 3 Effect of initial aldehyde concentration on pseudo first order rate constant, k', and the equilibrium position ...................................................................................... 69 Round, F.., Crawford, R.M. & F.G.Mann The Diatoms - Biology and Morphology of the Genera. (Cambridge University Press: 1990).
    • Heslop-Harrison, J. Pollen Wall Development. Science 161, 230-237 (1968).
    • Whitelam, S. & Bon, S.A.F. Self-assembly of amphiphilic peanut-shaped nanoparticles. The Journal of Chemical Physics 132, 074901 (2010).
  • Inferred research data

    The results below are discovered through our pilot algorithms. Let us know how we are doing!

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