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Citation: LEI Wu, XU Jin, XIA Ming-Zhu, SONG Wen-Yu, WANG Feng-Yun. Synthesis of Polyaspartic Acid[J]. Chinese Journal of Applied Chemistry, ;2003, 20(4): 397-399. shu

Synthesis of Polyaspartic Acid

1.
Institute of Industrial Chemistry, Nanjing University of Science and Technology, Nanjing 210094

Corresponding author: WANG Feng-Yun,
Received Date: 9 September 2002
Available Online: 17 December 2002

Polyaspartic acid (PASP) was prepared by hydrolysis of the polysuccinimide,which was mechanochemically synthesized from maleic anhydride and ammonium hydroxide in nitrogen atmosphere protection.The scale and corrosion inhibitions of PASP was evaluated and compared with 2-phosphonobutane-1,2,4-tricar-boxylic acid (PBTCA),1-hydroxyethylidene-1,1-diphosphonic acid (HEDP) and hydrolyzed polymaleic anhydride (HPMA).The results revealed that the inhibition of the PASP is close to that of PBTCA and HEDP,but much better than that of HPMA.
- polyaspartic acid,
- synthesis,
- scale inhibitor,
- corrosion inhibitor,
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