AI Article Synopsis
- Temperature-responsive nanofibrous membranes made from cellulose acetate (CA) and poly(N-isopropylacrylamide) (PNIPAM) were created using a one-step electrospinning method.
- These membranes can switch from superhydrophilic at room temperature (23 °C) to hydrophobic at higher temperatures (40 °C), showcasing water contact angles over 130°.
- The level of hydrophobicity can be fine-tuned by altering the amount of PNIPAM in the membrane mixture.
Article Abstract
Temperature-triggered switchable nanofibrous membranes are successfully fabricated from a mixture of cellulose acetate (CA) and poly(N-isopropylacrylamide) (PNIPAM) by employing a single-step direct electrospinning process. These hybrid CA-PNIPAM membranes demonstrate the ability to switch between two wetting states viz. superhydrophilic to highly hydrophobic states upon increasing the temperature. At room temperature (23 °C) CA-PNIPAM nanofibrous membranes exhibit superhydrophilicity, while at elevated temperature (40 °C) the membranes demonstrate hydrophobicity with a static water contact angle greater than 130°. Furthermore, the results here demonstrate that the degree of hydrophobicity of the membranes can be controlled by adjusting the ratio of PNIPAM in the CA-PNIPAM mixture.
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| http://dx.doi.org/10.1002/marc.201500037 | DOI Listing |
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