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Network crown ether resin with pendent sulfur ether group: Preparation, thermodegradation, and adsorption behavior

机译:带有侧基硫醚基团的网络冠醚树脂:制备,热降解和吸附行为

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摘要

Network crown ether resin with the pendent sulfur ether group was prepared by ring-opening copolymerization of 3-thiopentyl glycidyl ether and diethylene glycol bisglycidyl ether with Na, NaOCH2CH2OCH2CH2OH, or BuLi as catalyst, respectively. The yield of network polymer and the conversion of functional monoepoxy monomer are varied from catalyst to catalyst, and the thermostability of the resin is related to the content of the sulfur ether group. The resins show high adsorption capacity toward Cu(II), Pb(II), especially, Hg(II) ions, but poor adsorption capacity toward Mg(II) ions. Corresponding thermodynamic parameter of Hg(II) ion was deduced, and could be expressed approximately with the Freundlich equation. (C) 2002 Wiley Periodicals, Inc. [References: 19]
机译:通过使3-硫代戊基缩水甘油基醚和二甘醇双缩水甘油基醚分别与Na,NaOCH2CH2OCH2CH2OH或BuLi作为催化剂开环共聚,制备具有侧基硫醚基的网络冠醚树脂。网络催化剂的产率和官能单环氧单体的转化率在催化剂之间变化,并且树脂的热稳定性与硫醚基团的含量有关。该树脂对Cu(II),Pb(II),尤其是Hg(II)离子具有高吸附能力,但对Mg(II)离子的吸附能力较差。推导了相应的Hg(II)离子热力学参数,可以用Freundlich方程近似表示。 (C)2002 Wiley Periodicals,Inc. [参考:19]

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