化工学报 ›› 2013, Vol. 64 ›› Issue (7): 2687-2695.DOI: 10.3969/j.issn.0438-1157.2013.07.051

• 材料化学工程与纳米技术 • 上一篇    下一篇

两种封端聚醚大单体及其共聚物制备与阻磷酸钙垢应用

符嫦娥1,2,3, 胡大华1, 韩承辉1, 刘海霞1, 仓理2, 周钰明3   

  1. 1. 江苏开放大学, 江苏 南京 210036;
    2. 南京化工职业技术学院, 江苏 南京 210048;
    3. 东南大学化学化工学院, 江苏 南京 211189
  • 收稿日期:2012-08-15 修回日期:2013-04-13 出版日期:2013-07-05 发布日期:2013-07-05
  • 通讯作者: 周钰明
  • 作者简介:符嫦娥(1971- ),女,博士,副教授。
  • 基金资助:

    国家自然科学基金项目(51278253);江苏省自然科学基金项目(BK2011691)。

Synthesis of capped polyether macromonomers and their copolymers as antiscalants for calcium phosphate

FU Chang'e1,2,3, HU Dahua1, HAN Chenghui1, LIU Haixia1, CANG Li2, ZHOU Yuming3   

  1. 1. Jiangsu Open University, Nanjing 210036, Jiangsu, China;
    2. Nanjing College of Chemical Technology, Nanjing 210048, Jiangsu, China;
    3. School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, Jiangsu, China
  • Received:2012-08-15 Revised:2013-04-13 Online:2013-07-05 Published:2013-07-05
  • Supported by:

    supported by the National Natural Science Foundation of China (51278253)and the Natural Science Foundation of Jiangsu Province (BK2011691).

摘要: 采用烯丙基聚乙二醇单醚APEO10为原料制备了大分子单体磺酸盐封端聚醚APES10和羧酸盐封端聚醚APEC10并分别与小分子单体丙烯酸AA聚合生成两种聚羧酸类阻垢剂AA/APES10和AA/APEC10,用红外光谱、核磁共振对其结构进行了表征。实验确定了聚合反应单体最佳质量比为m(APES10):m(AA)=1:1,m(APEC10):m(AA)=2:3。通过静态阻垢实验对比了两种聚合物的阻磷酸钙垢性能。结果表明,合成的两种阻垢剂AA/APES10和AA/APEC10在临界值6 mg·L-1时阻磷酸钙垢率分别为92%、100%,但羧酸盐封端聚醚大单体合成的阻垢剂AA/APEC10阻磷酸钙垢能力优于磺酸盐封端聚醚大单体合成的阻垢剂,且聚合物AA/APEC10只含碳、氢、氧、钠4种元素,无氮、磷污染,可以充当循环水用环保型阻磷酸钙垢阻垢剂。

关键词: 聚羧酸阻垢剂, 封端聚醚大单体, 磷酸钙, 循环水

Abstract: Capped polyether macromonomers APES10 and APEC10 were synthesized from allyl polyethylene glycol sole ether APEO10,and their polycarboxylic acid type copolymers AA/APES10,AA/APEC10 as antiscalants were prepared from small molecule monomers acrylic acid AA.The products were characterized by FT-IR and 1H NMR and the performance of their copolymers of calcium phosphate inhibition was evaluated by the static scale-inhibiting method.The studies indicated that when mass ratio of APES10 to AA was 1:1,APEC10 to AA was 2:3,both AA/APEC10 and AA/APES10 had much better ability to inhibit the precipitation of calcium phosphate than other mass ratios.It was also shown that both AA/APEC10 and AA/APES10 had superior ability to inhibit the precipitation of calcium phosphate when the dosage was 6 mg·L-1,approximately showing 100%,92% inhibition,respectively. While compared to that of AA/APES10,AA/APEC10 had superior ability to control calcium-phosphate deposition.Furthermore,the synthesized AA/APEC10 is an environmentally friendly antiscalant,only containing four elements of carbon (C),hydrogen (H),oxygen (O),sodium (Na),without phosphorous (P)and nitrogen (N).AA/APEC10 is an excellent performance non-phosphorus inhibitor for calcium phosphate scaling in industrial recycling water systems.

Key words: polycarboxylic acid type antiscalant, capped polyether macromonomer, calcium phosphate, recycling water

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