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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and application of cotton-based chelate fibers grafted with poly(1-vinyl-1,2,4-triazole) side chains
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Synthesis and application of cotton-based chelate fibers grafted with poly(1-vinyl-1,2,4-triazole) side chains

机译：接枝聚（1-乙烯基-1,2,4-三唑）侧链棉基螯合纤维的合成及应用

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摘要

Cotton-based chelate fibers grafted with poly(1-vinyl-1,2,4-triazole) (PVTAZ) side chains were synthesized facilely by ozone-induced graft polymerization of 1-vinyl-1,2,4-triazole (VTAZ) monomer onto cotton fibers. The synthesis conditions were optimized to improve the yield and mechanical strength of the products. The obtained cotton-g-PVTAZ fibers were characterized and evaluated for batch adsorption of heavy metal ions from aqueous solutions. The maximum adsorption capacity of Ag(I), Pb(II), and Cu(II) on the fibers at pH 6.8 was 522, 330, and 184 mg/g, respectively. At 30% graft yield, the Young's modulus of cotton fiber increased about 26.5%, and its adsorption capacities of Ag(I), Pb(II), and Cu(II) increased about 2.6, 1.9, and 1.4 times, respectively. After washed with 0.1 mol/L HNO3 solutions, the adsorbed metal ions were eluted, and the regenerated cotton-g-PVTAZ fibers could be used repeatedly for water treatment. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41617.
机译：通过臭氧诱导的1-乙烯基1,2,4-三唑（VTAZ）接枝聚合反应，轻松合成了接枝有聚（1-乙烯基-1,2,4-三唑）（PVTAZ）侧链的棉基螯合纤维。单体到棉纤维上。优化了合成条件以提高产物的产率和机械强度。对所得的g-g-PVTAZ棉纤维进行表征，并评价其对水溶液中重金属离子的批量吸附。在pH 6.8时，纤维上的Ag（I），Pb（II）和Cu（II）的最大吸附容量分别为522、330和184 mg / g。在接枝率为30％的情况下，棉纤维的杨氏模量增加了约26.5％，其对Ag（I），Pb（II）和Cu（II）的吸附能力分别增加了约2.6、1.9和1.4倍。用0.1 mol / L HNO3溶液洗涤后，洗脱出吸附的金属离子，再生的棉-g-PVTAZ纤维可重复用于水处理。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41617。

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