Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/2389
Title: Amino-functionalized Breath-Figure Cavities in Polystyrene–Alumina Hybrid Films: Effect of Particle Concentration and Dispersion
Authors: Lakshmi, V
Annu Raju
Resmi, V G
Jerin K. Pancrecious
Rajan, T P D
Pavithran, C
Keywords: polystyrene
water-miscible solvents
Issue Date: May-2016
Publisher: RSC
Citation: Physical Chemistry Chemical Physics 18, 7367--7373
Abstract: We report the formation of breath-figure (BF) patterns with amino-functionalized cavities in a BF incompatible polystyrene (PS) by incorporating functionalized alumina nanoparticles. The particles were amphiphilic-modified and the modifier ratio was regulated to achieve a specific hydrophobic/hydrophilic balance of the particles. The influence of the physical and chemical properties of the particles like particle concentration, the hydrophobic/ hydrophilic balance,etc., on particle dispersion in solvents having different polarity and the corresponding changes in the BF patterns have been studied. The amphiphilic-modified alumina particles could successfully assist the BF mechanism, generating uniform patterns in polystyrene films with the cavity walls decorated with the functionalized alumina particles, even from water-miscible solvents like THF. The possibility of fabricating free-standing micropatterned films by casting and drying the suspension under ambient conditions was also demonstrated. The present method opens up a simple routefor producing functionalized BF cavities, which can be post-modified by a chemical route for various biological application
Appears in Collections:2016

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