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Citation: LI Na, FU Chang'e, ZHOU Yuming, LU Yipin, YANG Weiben. Synthesis and Scale Inhibition of a Polyether-typed Non-phosphorus Copolymer[J]. Chinese Journal of Applied Chemistry, ;2013, 30(5): 528-533. doi: 10.3724/SP.J.1095.2013.20347 shu

Synthesis and Scale Inhibition of a Polyether-typed Non-phosphorus Copolymer

LI Na ^a, ,
FU Chang'e ^b ,
ZHOU Yuming ^c ,
LU Yipin ^a ,
YANG Weiben ^a

a. College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China;
b. Jiangsu TV Radio University, Nanjing 210036, China;
c. School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China

Received Date: 13 August 2012
Revised Date: 24 October 2012

A new type of polyether copolymer-allyloxy polyether carboxylic acid sodium/acrylic acid(APEX/AA) was synthesized using water as solvent and APEX and AA as monomers. Polymer APEX/AA was characterized by infrared spectroscopy,thermogravimetric analysis and gel permeation chromatography. The dosage of APEX/AA,calcium ion concentration in solution,pH and temperature were evaluated on phosphate calcium scale inhibition efficiency through static method. The results show that the polymer APEX/AA has good thermal stability at temperature above 350℃,and its relative molecular mass distribution is controllable(PDI=1.41~1.88). The phosphate calcium scale inhibition efficiency of APEX/AA reached 100% when a concentration of 6 mg/L aqueous system was used. The results show that APEX/AA is suitable for water with a high calcium ion concentration (200~2000 mg/L),high pH(7.5~11.0) and high temperature(75~95℃). The scale inhibition effect of APEX/AA is superior to that of commercial calcium phosphate scale inhibitors such as 1-hydroxyethylidine-1,1-diphosphonic acid(HEDP),hydroxypropyl acrylate/acrylic acid(T-225) and 2-phosphonobutane-1,2,4-tricarboxylic acid(PBTCA),indicating that APEX/AA is an excellent non-phosphorus phosphate calcium scale inhibitor in the industrial circulating water systems.
- circulating cooling water,
- non-phosphorus copolymer,
- calcium phosphate
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Synthesis and Scale Inhibition of a Polyether-typed Non-phosphorus Copolymer

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com