Fabrication of cellulose membrane with "imprinted morphology" and low crystallinity from spherulitic [Bmim]Cl. Issue 32 (6th May 2016)

• Record Type: Journal Article
• Authors: Ma, Bomou; Qiao, Xue; Hou, Xiuliang; He, Chunju
• Is Part Of: Journal of applied polymer science. Volume 133:Issue 32(2016)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-05-06
• Subjects: crystallization -- ionic liquids -- membranes -- polysaccharides; Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.43798
• Languages: English
• ISSNs: 0021-8995

Abstract

ABSTRACT: In the present study, regenerated cellulose membrane with "imprinted morphology" and low crystallinity was fabricated from the crystal cellulose/[Bmim]Cl solution. Spherulites of 1‐butyl‐3‐methilimidazolium chloride ([Bmim]Cl) and cellulose/[Bmim]Cl solution were observed using polarized optical microscopy under certain condition. The fabricated cellulose membranes presented some particular characteristics compared with the membrane prepared from traditional cellulose/[Bmim]Cl solution. All the fabricated membranes were characterized by optical microscope, Wide‐angle X‐ray diffraction (WAXD), thermo‐gravimetric analysis, and mechanical testing. The images showed that the resulting membranes prepared from crystal cellulose/[Bmim]Cl solution were "imprinted" with patterns which originated from the crystalline structure of [Bmim]Cl. The results of WAXD showed that the obtained cellulose membrane exhibited low diffraction peaks and crystallinity of approximately 24.57%. Furthermore, the low crystallinity led to the low mechanical property (27.5 MPa), thermal stability (315.4 °C), and high moisture regain (9.5%). © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2016, 133, 43798. Abstract :