Fluorescent core-sheath fibers by electrospinning of a phenyleneethynylene/poly(styrene-co-maleimide) blend

被引：10

作者：

Adriana Garcia, Lizeth ^{[1
]}

Arias, Eduardo ^{[1
]}

Moggio, Ivana ^{[1
]}

Romero, Jorge ^{[1
]}

Ledezma, Antonio ^{[1
]}

Ponce, Arturo ^{[1
]}

Perez, Odilia ^{[1
]}

机构：

[1] Ctr Invest Quim Aplicada, Saltillo 25153, Coahuila, Mexico

来源：

POLYMER | 2011年 / 52卷 / 23期

关键词：

Phenyleneethynylenes; Electrospinning; Core-sheath structure; PHENYLENE-ETHYNYLENE OLIGOMERS; CONJUGATED POLYMERS; EXCITED-STATE; NANOFIBERS; SHELL; FILMS;

D O I：

10.1016/j.polymer.2011.09.029

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Ultrafine fluorescent fibers were prepared by electrospinning of a phenyleneethynylene oligomer mixed in DMF with a poly(styrene-co-maleimide) (PSM). The microscopic characterization by SEM reveals that the fibers are smooth and entangled one to the others forming a non-woven mat with an average diameter of 490 nm. By TEM, a core-sheath type structure is observed which derives from phase segregation between the PSM interacting with the oligomer and the excess of PSM that acts as matrix, as supported by XRD and DSC analysis. The membranes are fluorescent emitting at 420 nm, in the blue region, a high energy light, opening the possibility of their application in optoelectronic devices such as fluorescent sensors. Preliminary assays have been performed for the detection of sodium ions. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：5326 / 5334

页数：9

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