Thermoresponsive Colloidal Crystals Built from Core−Shell Poly(styrene/α-tert-butoxy-ω-vinylbenzylpolyglycidol) Microspheres

摘要: Core−shell particles of poly(styrene/α-tert-butoxy-ω-vinylbenzylpolyglycidol) P(S/PGL) were used as new building blocks for the assembly a colloidal crystal. The added-value properties these photonic crystal architectures are their high hydrophilicity together with thermoresponsivity. Indeed, poglycidol-rich shell undergoes phase transition above 45 °C, which leads to its collapse at particle surface accompanied by decrease in diameter. three-dimensional crystalline arrays display Bragg diffraction properties, judged angle-resolved reflectance spectroscopy. thermoresponsivity assemblies was observed through modifications optical respect temperature during process. wetting material also shown reversibly switch from hydrophilic hydrophobic function temperature, thus evidencing reorganization po...