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Effect of viscosity ratio of the outer/inner solutions on the morphology of core–shell fibers was studied by altering the concentrations of two polymer solutions, poly(methyl methacrylate) and poly(acrylonitrile), as a… Click to show full abstract
Effect of viscosity ratio of the outer/inner solutions on the morphology of core–shell fibers was studied by altering the concentrations of two polymer solutions, poly(methyl methacrylate) and poly(acrylonitrile), as a role model. Nonuniform core–shell structures were observed at low viscosity ratio of PAN/PMMA. By increasing the viscosity ratio of PAN/PMMA, the total diameter and the wall thickness were increased, while the core diameter seems to be gradually decreased. Rheology aspects and suitable ranges of viscosity ratios were discussed and suggested in this work.
Journal Title: Polymer Journal
Year Published: 2017
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