Cyclodextrin-functionalized Ordered Porous Block Copolymer Films: Preparation and Property

• Published in: Chinese journal of polymer science 2018, Vol.36 (1), p.34-42
• Main Authors: Dang, Jing, Su, Yuan-Wei, Tian, Wei
• Format: Article
• Language: English
• Subjects: Adsorption; Block copolymers; Characterization and Evaluation of Materials; Chemisorption; Chemistry; Chemistry and Materials Science; Condensed Matter Physics; Copolymers; Cyclodextrins; Industrial Chemistry/Chemical Engineering; Kinetics; Polymer Sciences; Self-assembly; Structural integrity
• ISSN: 0256-7679; 1439-6203
• DOI: 10.1007/s10118-018-2005-2

Ordered porous block copolymer films(PBCFs) have attracted much attention because of their potential applications in several fields. In this paper, we first reported a non-destructive, controllable, and efficient approach for preparation of β-cyclodextrin(β-CD)-functionalized PBCFs(β-CD-PBCFs). The key point of the approach is to incorporate β-CD units into the hydrophilic segment of amphiphilic block copolymers before the preparation of films. β-CD-PBCFs with structural integrity and controllable pore parameters were fabricated through combining of self-assembly and breath figure methods. And then, the effective adsorption capacity of β-CD-PBCFs toward Congo red was confirmed through UV-Vis spectroscopy and was found to be affected by β-CD content and solution p H values. Adsorption kinetic results showed that the adsorption behavior of β-CD-PBCFs was consistent with the pseudo-second-order kinetic model and the chemisorption mechanism.