Journal
REACTIVE & FUNCTIONAL POLYMERS
Volume 70, Issue 12, Pages 938-943Publisher
ELSEVIER
DOI: 10.1016/j.reactfunctpolym.2010.09.006
Keywords
Helical poly(N-propargylamide)s; Catechol groups; Metal-complexing; Adsorption
Funding
- Program for New Century Excellent Talents in University [NCET-06-0096]
- National Science Foundation of China [20974007]
- Program for Changjiang Scholars and Innovative Research Teams in University (PCSIRT) [IRT 0706]
- Beijing Municipal Education Commission (BMEC)
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A novel type of helical N-propargylamide (PA) copolymer was synthesized by catalytic polymerization of monomer 1 (M1), which provided pendent functional catechol groups, and monomer 2 (M2), which endowed the expected copolymer backbones with helical structures. With [(nbd)Rh+B-(C6H5)(4) (nbd = 2,5-norbornadiene)] as catalyst, PA copolymers could be obtained with moderate molecular weights (3800-14,000) in high yields (>= 96%). The functional catechol groups enhanced the hydrophilicity of the hydrophobic mono-substituted polyacetylenes and aided the helical PA copolymers in showing a considerable adsorbance toward metal ions [Fe(III), Cr(III), Ni(II), Zn(II), Cu(II) and Cu(I)] in aqueous solution. The prepared copolymer in which Ml/M2 was 0.1/0.9 [mol/mol, poly(1(0.1)-co-2(0.9))] showed the highest adsorption capacity among the examined helical copolymers. In particular, for Fe(III), the maximum adsorption capacity was 186 mg g(-1). (C) 2010 Elsevier Ltd. All rights reserved.
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