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A new and non-invasive technique based on confocal laser scanning microscopy (CLSM) that allows the visualization of penetrant diffusion in-situ has been developed and was applied to quantify local solute dynamics in polymeric films. The effectiveness of the proposed technique was demonstrated using a model penetrant, rhodamine-6G (Rh-6G), and a system of polyvinyl alcohol (PVA) films with different...
Polymethylmethacrylate (PMMA) microspheres with various morphologies are fabricated by nonsolvent assisted electrospraying. The morphology evolution is determined by nonsolvent properties including the solubility parameter, surface tension and viscosity, and nonsolvent induced phase separation is the main reason for the formation of the porous and/or hollow structures. It is found that nonsolvent...
This research aims to study the photo-degradation characteristics for zinc oxide (ZnO) nanoparticle filled polypropylene (PP) nanocomposites. By paying attention to the evolution of the carbonyl absorption bands from FTIR analysis, it has been observed that UV irradiation induced significant photo-degradation for unfilled PP. However, with the incorporation of ZnO nanoparticles into the PP matrix,...
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