Synthesis of Thermoresponsive Diblock Copolymer Nano-Objects via RAFT Aqueous Emulsion Polymerization of Hydroxybutyl Methacrylate
Saul J. Hunter, Nicholas J. W. Penfold, Elizabeth R. Jones, Thomas Zinn, Oleksandr O. Mykhaylyk, Steven P. Armes
Abstract
H NMR studies indicated that (i) the PEG stabilizer block undergoes dehydration on heating and (ii) the apparent degree of hydration of the hydrophobic PHBMA block increases on heating from 25 to 65 °C. This suggests that the change in copolymer morphology is best explained in terms of a uniform plasticization mechanism.
Topics & Concepts
RaftChain transferCopolymerPolymer chemistryDynamic light scatteringPolymerizationEmulsion polymerizationEthylene glycolAqueous solutionMaterials scienceMethacrylateReversible addition−fragmentation chain-transfer polymerizationChemical engineeringRadical polymerizationChemistryNanoparticlePolymerOrganic chemistryNanotechnologyComposite materialEngineeringAdvanced Polymer Synthesis and CharacterizationPickering emulsions and particle stabilizationRadioactive element chemistry and processing