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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis of Ultrafine Poly(styrene-maleic anydride)and Polystyrene Fibers by Electrospinning
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Synthesis of Ultrafine Poly(styrene-maleic anydride)and Polystyrene Fibers by Electrospinning

机译：电纺丝法合成超细聚苯乙烯-马来酸酐和聚苯乙烯纤维

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摘要

Fiber formation from atactic polystyrene(aPS) and alternating poly(styrene-maleic anhydride)(PSMA) synthesized by free radical polymerization (AIBN,90°C, 4 h) were investigated by electrospinning from vari-ous solutions. aPS was soluble in dimethylformamide(DMF), tetrahydrofuran (THF), toluene, styrene, and ben-zene, whereas PSMA was soluble in acetone, DMF, THF,dimethylsulfoxide (DMSO), ethyl acetate, and methanol.aPS fibers could be electrospun from 15 to 20% DMF and20% THF solutions, but not from styrene nor toluene.PSMA, on the other hand, could be efficiently electrospuninto fibers from DMF and DMSO at 20 and 25%, respec-tively. Few PSMA fibers were, however, produced from ace-tone, THF, or ethyl acetate solutions. Results showed thatsolvent properties and polymer-solvent miscibility stronglyinfluenced the fiber formation from electrospinning. The addition of solvents, such as THF, generally improved thefiber uniformity and reduced fiber sizes for both polymers.The nonsolvents, however, had opposing effects on the twopolymers, i.e., significantly reducing PSMA fiber diametersto 200 to 300 nm, creating larger and irregularly shaped aPSfibers. The ability to incorporate the styrene monomer anddivinylbenzene crosslinker in aPS fibers as well as to hydro-lyze PSMA fibers with diluted NaOH solutions demon-strated potential for post-electrospinning reactions andmodification of these ultrafine fibers for reactive supportmaterials.
机译：通过各种溶液的电纺丝研究了由自由基聚合（AIBN，90°C，4 h）合成的无规立构聚苯乙烯（aPS）和交替聚（苯乙烯-马来酸酐）（PSMA）的纤维形成。 aPS可溶于二甲基甲酰胺（DMF），四氢呋喃（THF），甲苯，苯乙烯和苯中，而PSMA可溶于丙酮，DMF，THF，二甲基亚砜（DMSO），乙酸乙酯和甲醇。从15％到20％的DMF和20％的THF溶液，而不是从苯乙烯或甲苯得到的溶液。另一方面，PSMA可以分别有效地电纺成20％和25％的DMF和DMSO纤维。然而，很少有PSMA纤维是由丙酮，THF或乙酸乙酯溶液生产的。结果表明，溶剂性能和聚合物-溶剂混溶性强烈影响静电纺丝的纤维形成。添加溶剂（例如THF）通常可以提高两种聚合物的纤维均匀性并减小纤维尺寸。然而，非溶剂对两种聚合物具有相反的影响，即将PSMA纤维直径显着减小至200至300 nm，从而形成较大且不规则的形状aPS纤维。将苯乙烯单体和二乙烯基苯交联剂结合到aPS纤维中以及用稀释的NaOH溶液水解PSMA纤维的能力证明了电纺后反应和这些超细纤维用于反应性载体材料的改性潜力。

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