title: Copper on responsive polymer microgels: a recyclable catalyst exhibiting tunable catalytic activity.
abstract: Copper has been immobilized on a chitosan-based responsive polymer microgel by simply stirring the microgel dispersion with copper sulfate. The ensuing catalyst is highly active for a model azide-alkyne [3+2]-cycloaddition reaction, and can be recycled at least 5 times; the catalytic activity can be tuned via swelling-deswelling transitions of the polymer gels.
authors.affiliation: State Key Laboratory for Physical Chemistry of Solid Surfaces, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China. wuwtxmu@xmu.edu.cn.
authors.forename: Qingshi
authors.initials: Q
authors.lastname: Wu
authors.forename: Han
authors.initials: H
authors.lastname: Cheng
authors.forename: Aiping
authors.initials: A
authors.lastname: Chang
authors.forename: Xue
authors.initials: X
authors.lastname: Bai
authors.forename: Fan
authors.initials: F
authors.lastname: Lu
authors.forename: Weitai
authors.initials: W
authors.lastname: Wu
mesh_terms: D000480:Alkynes / Q000737:chemistry; D001386:Azides / Q000737:chemistry; D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D003500:Cyclization; D005782:Gels / Q000737:chemistry*; D015394:Molecular Structure; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D013499:Surface Properties; D014230:Triazoles / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: D000480:Alkynes; D001386:Azides; D005782:Gels; D011108:Polymers; D014230:Triazoles; D003300:Copper