Preparation of new photo-crosslinked β-cyclodextrin polymer beads

• Published in: Polymer journal Vol. 49; no. 4; pp. 377 - 383
• Main Authors: Yamasaki, Hirohito, Odamura, Aya, Makihata, Yousuke, Fukunaga, Kimitoshi
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.04.2017; Nature Publishing Group
• Subjects: 140/131; 639/301/923/1028; 639/638/455/941; Acrylates; Beads; Biomaterials; Bioorganic Chemistry; Calcium chloride; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Compressive strength; Cyclodextrins; Diisocyanates; Efficiency; Hydroxyethyl acrylate; original-article; Phenol; Physical properties; Polymer Sciences; Polymers; Radiation crosslinking; Sodium alginate; Surfaces and Interfaces; Thin Films; Ultraviolet radiation; Wastewater
• ISSN: 0032-3896; 1349-0540
• DOI: 10.1038/pj.2016.127

Photo-crosslinkable groups were introduced to β-cyclodextrin (β-CyD) by the reaction of β-cyclodextrins with isophorone diisocyanate and 2-hydroxyethyl acrylate to produce polysubstituted photo-crosslinkable β-CyD (PSβCyD). To yield PSβCyD of a spherical shape, a suspension consisting of PSβCyD and aqueous sodium alginate solution was added dropwise into an aqueous calcium chloride solution. Then, the PSβCyD macromonomer was photo-crosslinked with ultraviolet radiation to obtain β-CyD polymer beads. The physical properties of the highest quality polymer beads prepared were as follows: diameter (φ) 2.7 mm and compressive strength 6.5 MPa that showed 69% separation efficiency of phenol from the raw industrial 8.9 wt% phenolic waste water. Photo-crosslinkable groups were introduced to β-cyclodextrin (β-CyD) by the reaction of β-cyclodextrins with isophorone diisocyanate and 2-hydroxyethyl acrylate to produce polysubstituted photo-crosslinkable β-CyD (PSβCyD). To yield PSβCyD of a spherical shape, a suspension consisting of PSβCyD and aqueous sodium alginate solution was added dropwise into an aqueous calcium chloride solution. Then, the PSβCyD macromonomer was photo-crosslinked with ultraviolet radiation to obtain β-CyD polymer beads.