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Thermally Tunable Surface Wettability of Electrospun Fiber Mats: polystyrene/poly(N-isopropylacrylamide) Blended Versus Crosslinked poly[(N-isopropylacrylamide)-co-(methacrylic Acid)]

Thermally Tunable Surface Wettability of Electrospun Fiber Mats: polystyrene/poly(N-isopropylacrylamide) Blended Versus Crosslinked poly[(N-isopropylacrylamide)-co-(methacrylic Acid)]

Palanikkumaran Muthiah, Sarah M Hoppe, Timothy J Boyle, Wolfgang Sigmund

Macromol Rapid Commun. 2011 Nov 1;32(21):1716-21.

PMID: 21994211

Abstract:

This work reports on thermally tunable surface wettability of electrospun fiber mats of: polystyrene (PS)/poly(N-isopropylacrylamide) (PNIPA) blended (bl-PS/PNIPA) and crosslinked poly[(N-isopropylacrylamide)-co-[methacrylic acid)] (PNIPAMAA) (xl-NIPAMAA). Both the bl-PS/PNIPA and xl-PNIPAMAA fiber mats demonstrate reversibly switchable surface wettability, with the bl-PS/PNIPA fiber mats approaching superhydrophobic ≥150° and superhydrophilic contact angle (CA) values at extreme temperatures. Weight loss studies carried out at 10 °C indicate that the crosslinked PNIPAMAA fiber mats had better structural integrity than the bl-PS/PNIPA fiber mats. PNIPA surface chemistry and the Cassie-Baxter model were used to explain the mechanism behind the observed extreme wettability.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP151954971	Poly(N-isopropylacrylamide-co-methacrylic acid)		151954-97-1	Price

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