Polymeric membranes through self-initiation and self-polymerization for high-performance bioethanol pervaporation. Issue 34 (16th August 2022)

• Record Type: Journal Article
• Authors: Si, Zhihao; Liu, Chang; Xue, Tanlong; Yang, Shuai; Cui, Yuhui; Wang, Yaqi; Cai, Di; Qin, Peiyong
• Is Part Of: Journal of materials chemistry. Volume 10:Issue 34(2022)
• Page Start: 17699
• Page End: 17709
• Publication Date: 2022-08-16
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d2ta04701b
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : Prepolymer 1173IPS-MAPDMS shows a stable and homogeneous distribution of PI with an ultrahigh loading. This self-initiated/self-polymerized membrane has an excellent ethanol pervaporation performance and a high scale-up feasibility. Abstract : Polymeric membranes are in great demand for biofuels, and ultraviolet (UV)-induced crosslinking currently shows a controllable and ultrafast ability for their fabrication, whereas the weak compatibility between the photoinitiator (PI) and polymer remains a great challenge in the large-scale supply of membranes. Herein, we report a polydimethylsiloxane (PDMS) prepolymer simultaneously functionalized with a PI and photocrosslinker, which endows the prepolymer with self-initiation and self-polymerization properties, respectively. The chemically grafted PI shows a stable and homogeneous distribution over 10 days with a superhigh loading (>5 wt%), which provides an extremely high initiation efficiency. Accordingly, the self-initiated/self-polymerized membranes exhibit an excellent comprehensive performance for bioethanol enrichment compared with the state-of-the-art polymeric membranes. Our PI–polymer design provides a general framework for the high-efficiency fabrication of polymeric membranes.