Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.572927
Title: Multiple hydrogen bond arrays reinforced polymer colloidal materials
Author: Chen, Yunhua
Awarding Body: University of Warwick
Current Institution: University of Warwick
Date of Award: 2012
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Abstract:
We demonstrate the combination of supramolecular chemistry (multiple hydrogen bonding) with polymer colloidal sciences in the creation of interesting materials. This provides us an access to the unique structures and properties that [sic] not possible to [sic] traditional materials. We first developed cellular polymer films made from 2-ureido-4[H]-pyrimidinone (UPy) quadruple hydrogen bonded soft latexes. The films show colloidal crystalline-type Bragg diffraction features when exposed to solvents, and do not suffer excessive and deteriorative uptake of water and, more remarkably can absorb high amounts of organic solvents. Impressively, Pickering high internal phase emulsion gels can be prepared by using these UPy functionalized particles as stabilizers under extremely low shear stress and short time. Moreover, we first used the UPy functionalzed macromonomer as non-colvalently [sic] crosslinker to prepare thermo-sensitive nanogel particles which are conventionally made using covalent-bond crosslinkers. Templated high internal phase emulsion hydrogel monoliths stabilzed by these nanogels can be prepared through injection moulding, which also exhibit excellent thermo-responsive properties. Alternatively, we also first created interesting Janus micro-beads with highly anisotropic and tunable internal architecture based on complementary hydrogen bonding interactions, rather than UPy self-complementary interactions, by single emulsion-droplet microfluidic technique.
Supervisor: Not available Sponsor: China Scholarship Council (CSC)
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.572927  DOI: Not available
Keywords: QD Chemistry
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