Poly(N-isopropylacrylamide)-based nanofiber membranes with temperature-sensitive and excellent mechanical properties

ZHOU Jiancheng; CHEN Guohua; CHEN Danqing

doi:10.13801/j.cnki.fhclxb.20220825.001

Volume 40 Issue 6

Jun. 2023

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ZHOU Jiancheng, CHEN Guohua, CHEN Danqing. Poly(N-isopropylacrylamide)-based nanofiber membranes with temperature-sensitive and excellent mechanical properties[J]. Acta Materiae Compositae Sinica, 2023, 40(6): 3441-3448. doi: 10.13801/j.cnki.fhclxb.20220825.001

Citation:

ZHOU Jiancheng, CHEN Guohua, CHEN Danqing. Poly(N-isopropylacrylamide)-based nanofiber membranes with temperature-sensitive and excellent mechanical properties[J]. Acta Materiae Compositae Sinica, 2023, 40(6): 3441-3448. doi: 10.13801/j.cnki.fhclxb.20220825.001

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Poly(N-isopropylacrylamide)-based nanofiber membranes with temperature-sensitive and excellent mechanical properties

doi: 10.13801/j.cnki.fhclxb.20220825.001

1.
College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
2.
College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China

Funds: Fujian Province Science and Technology Planning Project (2018H0019; 2017H2001)

Received Date: 2022-07-05
Accepted Date: 2022-08-11
Rev Recd Date: 2022-08-08

Available Online: 2022-08-25

Publish Date: 2023-06-15

Abstract

Abstract

Poly(N-isopropylacrylamide) (PNIPAM), which contains both hydrophilic amide and hydrophobic isopropyl groups, is one of the most widely used temperature-sensitive polymers, and its related products have promising applications in the fields of tissue engineering, medical care and smart fabrics. In this study, PNIPAM was successfully synthesized by free radical polymerization, and PNIPAM was prepared into temperature-sensitive nano-membranes by electrospinning technology innovatively. Then, we tried to copolymerize polyethylene glycol methyl ether (mPEG) and PNIPAM in different proportions to investigate the performance of PNIPAM-co-mPEG. The results showed that the temperature-sensitive nano-membranes exhibited significant hydrophilic and hydrophobic transitions with temperature changes. Compared with the pure PNIPAM temperature-sensitive nano-membranes, the mechanical properties of the PNIPAM-co-mPEG were significantly improved, and it could maintain the inherent fiber morphology under the condition of large water absorption and swelling. The residual weight rate and the initial decomposition temperature of PNIPAM-co-mPEG are increased by 321% and 240%, respectively. The water contact angle of PNIPAM-co-mPEG at room temperature decreases by more than 16°, which improves the hydrophilicity to a certain extent. Moreover, the low critical solution temperature of PNIPAM-co-mPEG is increased from 31.7℃ to 43.6℃, the temperature-sensitive range is expanded.
- electrospinning,
- temperature-sensitive,
- nanofiber membrane,
- poly(N-isopropylacrylamide) (PNIPAM),
- polyethylene glycol methyl ether (mPEG)
Long Abstrsct
Innovation Points

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References(23)

References

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