首页> 外文期刊>Journal of Applied Polymer Science >Electrospinning Polycaprolactone Dissolved in Glacial Acetic Acid: Fiber Production, Nonwoven Characterization, and In Vitro Evaluation
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Electrospinning Polycaprolactone Dissolved in Glacial Acetic Acid: Fiber Production, Nonwoven Characterization, and In Vitro Evaluation

机译:电纺丝聚己内酯溶解在冰醋酸中:纤维生产,非织造布表征和体外评估。

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The electrospinning of polycaprolactone (PCL) dissolved in glacial acetic acid and the characterization of the resultant nonwoven fiber mats is reported in this work. For comparison purposes, PCL fiber mats were also obtained by electrospinning the polymer dissolved in chloroform. Given the processing parameters chosen, results show that 14 and 17 wt % PCL solutions are not viscous enough and yield beaded fibers, 20 and 23 wt % solutions give rise to high quality fibers and 26 wt % solutions yield mostly irregular and fused fibers. The nonwoven mats are highly porous, retain the high tensile strain of PCL, and the fibers are semicrystalline. Cells adhere and proliferate equally well on all mats, irrespective of the solvent used in their production. In conclusion, mats obtained by electrospinning PCL dissolved in acetic acid are also a good option to consider when producing scaffolds for tissue engineering. Moreover, acetic acid is miscible with polar solvents, which may allow easier blending of PCL with hydrophilic polymers and therefore achieve the production of electrospun nanofibers with improved properties.
机译:这项工作报道了溶解在冰醋酸中的聚己内酯(PCL)的静电纺丝以及所得非织造纤维毡的特性。为了进行比较,还通过静电纺丝溶解在氯仿中的聚合物来获得PCL纤维毡。给定所选的加工参数,结果表明14%和17 wt%的PCL溶液不够粘稠,无法产生串珠纤维; 20%和23 wt%的溶液可以产生高质量的纤维,而26 wt%的溶液则可以产生大部分不规则和熔融的纤维。非织造垫是高度多孔的,保留了PCL的高拉伸应变,并且纤维是半结晶的。无论在生产中使用何种溶剂,细胞在所有垫子上的粘附和增殖均均良好。总而言之,在生产用于组织工程的支架时,通过静电纺丝溶解在乙酸中的PCL获得的垫子也是一个不错的选择。而且,乙酸可与极性溶剂混溶,这可以使PCL与亲水性聚合物更容易地共混,因此可以实现具有改进性能的电纺纳米纤维的生产。

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