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Literature DB >> 15924488

Electrospun poly(styrene-block-dimethylsiloxane) block copolymer fibers exhibiting superhydrophobicity.

Minglin Ma¹, Randal M Hill, Joseph L Lowery, Sergey V Fridrikh, Gregory C Rutledge.

Abstract

Block copolymer poly(styrene-b-dimethylsiloxane) fibers with submicrometer diameters in the range 150-400 nm were produced by electrospinning from solution in tetrahydrofuran and dimethylformamide. Contact angle measurements indicate that the nonwoven fibrous mats are superhydrophobic, with a contact angle of 163 degrees and contact angle hysteresis of 15 degrees . The superhydrophobicity is attributed to the combined effects of surface enrichment in siloxane as revealed by X-ray photoelectron spectroscopy and surface roughness of the electrospun mat itself. Additionally, the fibers are shown by transmission electron microscopy to exhibit microphase-separated internal structures. Calorimetric studies confirm the strong segregation between the polystyrene and poly(dimethylsiloxane) blocks.

Entities: Chemical

Year: 2005 PMID： 15924488 DOI： 10.1021/la047064y

Source DB: PubMed Journal: Langmuir ISSN： 0743-7463 Impact factor: 3.882

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Cited

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Electrospun poly(styrene-block-dimethylsiloxane) block copolymer fibers exhibiting superhydrophobicity.

1. Robust omniphobic surfaces.

2. Electrospinning and Electrospun Nanofibers: Methods, Materials, and Applications.

3. Preparation and characterization of self-cleaning stable superhydrophobic linear low-density polyethylene.

4. Highly stretchable electric circuits from a composite material of silver nanoparticles and elastomeric fibres.

5. Fabrication of PU/PEGMA crosslinked hybrid scaffolds by in situ UV photopolymerization favoring human endothelial cells growth for vascular tissue engineering.

6. A novel shortened electrospun nanofiber modified with a 'concentrated' polymer brush.

Review 7. The role played by modified bioinspired surfaces in interfacial properties of biomaterials.

8. Putting Electrospun Nanofibers to Work for Biomedical Research.

9. Reduced Blood Coagulation on Roll-to-Roll, Shrink-Induced Superhydrophobic Plastics.

10. Nanofibrous microposts and microwells of controlled shapes and their hybridization with hydrogels for cell encapsulation.