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- W2365600424 abstract "Linear and hyperbranched poly(ester amine)s (PEAs) were used as additives in electrospinning of low concentration poly( methyl methacrylate) solutions to eliminate beads and improve the fiber uniformity. With only 1 wt% PEA,no matter linear or hyperbranched,the electrospinnability was all improved,and uniform fibers without beads were obtained. Compared to linear PEA,hyperbrchched PEA has better ability in improving the fiber uniformity. The average fiber diameter decreases significantly ( from 1. 9 μm to 1. 0 μm) compared to those obtained at high concentration without PEA. The principle of the improvement in electrospinnability was investigated by measuring the solution properties ( viscosity,conductivity and surface tension),and it was attributed to the significant increase in solution conductivity. The solution viscosity and surface tension only change slightly,while solution conductivity increases greatly with the addition of 1 wt% PEA (including linear and hyperbranched). The hyperbranched PEAs have higher conductivity than the linear PEA because they have more polar end-groups resulted from the multiple branches,and therefore the hyperbranched PEAs have better performance than the linear PEA in improving the electrospinnability of low concentration PMMA solutions. The method reported in this paper could be generalized and provides a good alternative to the existing methods." @default.
- W2365600424 created "2016-06-24" @default.
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- W2365600424 date "2010-01-01" @default.
- W2365600424 modified "2023-09-26" @default.
- W2365600424 title "IMPROVEMENT OF POLY(METHYL METHACRYLATE) ELECTROSPUN FIBER UNIFORMITY BY ADDITION OF POLY(ESTER AMINE)" @default.
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