PVAm Nanofibers Fabricated by Rotary Jet Wet Spinning and Applied to Bisphenol A Recognition

Yingzhu Wu; Chen Li; Fei Fan; Jiahao Liang; Zihang Yang; Xiaoqun Wei; Shuixia Chen

doi:10.1021/acsomega.9b02964

PVAm Nanofibers Fabricated by Rotary Jet Wet Spinning and Applied to Bisphenol A Recognition

ACS Omega. 2019 Dec 5;4(25):21361-21369. doi: 10.1021/acsomega.9b02964. eCollection 2019 Dec 17.

Authors

Yingzhu Wu^{1

2}, Chen Li¹, Fei Fan¹, Jiahao Liang¹, Zihang Yang¹, Xiaoqun Wei³, Shuixia Chen²

Affiliations

¹ School of Textile Materials and Engineering and School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China.
² PCFM Lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China.
³ Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, P. R. China.

Abstract

Poly(vinylamine) (PVAm) is an important polymer with the highest content of primary amine groups of any polymer. PVAm has a great potential in selective separation and smart materials. It is difficult to fabricate pure PVAm nanofibers by electrospinning and rotary jet spinning (RJS) without additional polymers. In this work, rotary jet wet spinning (RJWS) was applied to fabricate molecular imprinting nanofibers (MINFs) with polyelectrolyte for the first time. Initially, optimal parameters of spinning are investigated, including coagulation bath, solution viscosity, and rotation speed. The PVAm aqueous solution is sensitive to alcohol. To demonstrate RJWS application, PVAm-based MINFs for bisphenol A (one endocrine disruptor) recognition are prepared by adding dummy template, cross-linking, and template elution. The association constant (8.6 mg/L), equilibrium time (30 min), and binding sites utilization rate (80%) of MINFs are evaluated. Its adsorption amount and selectivity are little lower than those of MIPs prepared by bulk polymerization; however, its adsorption speed is faster than that of MIPs.