Synthesis and characterization of novel polyaspartic acid/urea graft copolymer with acylamino group and its scale inhibition performance

Ying Zhang; Hongquan Yin; Qingshan Zhang; Yunzheng Li; Pengjun Yao

doi:10.1016/j.desal.2016.05.020

Synthesis and characterization of novel polyaspartic acid/urea graft copolymer with acylamino group and its scale inhibition performance

Ying Zhang, Hongquan Yin^*, Qingshan Zhang, Yunzheng Li, Pengjun Yao

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

90 Citations (Scopus)

Abstract

A novel green scale inhibitor, polyaspartic acid/urea graft copolymer (PASP/Urea), was synthesized by polysuccinimide (PSI) and urea. PASP/Urea was a non-toxic, non-phosphorus, biodegradable acylamino copolymer. The structure of PASP/Urea was characterized by Fourier transform infrared spectroscopy (IR), ¹H nuclear magnetic resonance (¹H NMR) and gel permeation chromatography (GPC) analysis. Its scale inhibition performance was estimated with static scale inhibition methods. The influence of PASP/Urea on formation of CaCO₃, CaSO₄ and Ca₃(PO₄)₂ was investigated using scanning electronic microscopy (SEM). The PASP/Urea exhibited more excellent scale inhibition property against CaCO₃, CaSO₄ and Ca₃(PO₄)₂ than the PASP and the comprehensive scale inhibition property of PASP/Urea is much better than the property of PASP. The scale inhibition efficiency of PASP/Urea against CaCO₃ was 93% when the dosage of PASP/Urea was 10 mg/L. The inhibition efficiency against CaSO₄ increased to 97% in the PASP/Urea concentration of 4 mg/L. The inhibition efficiency against Ca₃(PO₄)₂ reached up to 100% in the concentration of 12 mg/L. The results of SEM indicated that the scale crystals became irregular and distorted and the formation of scales was inhibited when the PASP/Urea was added.

Original language	English
Pages (from-to)	92-98
Number of pages	7
Journal	Desalination
Volume	395
DOIs	https://doi.org/10.1016/j.desal.2016.05.020
Publication status	Published - 3 Oct 2016

Keywords

Acylamino
Polyaspartic acid/urea
Polysuccinimide
Scale inhibition
Urea

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10.1016/j.desal.2016.05.020

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title = "Synthesis and characterization of novel polyaspartic acid/urea graft copolymer with acylamino group and its scale inhibition performance",

abstract = "A novel green scale inhibitor, polyaspartic acid/urea graft copolymer (PASP/Urea), was synthesized by polysuccinimide (PSI) and urea. PASP/Urea was a non-toxic, non-phosphorus, biodegradable acylamino copolymer. The structure of PASP/Urea was characterized by Fourier transform infrared spectroscopy (IR), 1H nuclear magnetic resonance (1H NMR) and gel permeation chromatography (GPC) analysis. Its scale inhibition performance was estimated with static scale inhibition methods. The influence of PASP/Urea on formation of CaCO3, CaSO4 and Ca3(PO4)2 was investigated using scanning electronic microscopy (SEM). The PASP/Urea exhibited more excellent scale inhibition property against CaCO3, CaSO4 and Ca3(PO4)2 than the PASP and the comprehensive scale inhibition property of PASP/Urea is much better than the property of PASP. The scale inhibition efficiency of PASP/Urea against CaCO3 was 93% when the dosage of PASP/Urea was 10 mg/L. The inhibition efficiency against CaSO4 increased to 97% in the PASP/Urea concentration of 4 mg/L. The inhibition efficiency against Ca3(PO4)2 reached up to 100% in the concentration of 12 mg/L. The results of SEM indicated that the scale crystals became irregular and distorted and the formation of scales was inhibited when the PASP/Urea was added.",

keywords = "Acylamino, Polyaspartic acid/urea, Polysuccinimide, Scale inhibition, Urea",

author = "Ying Zhang and Hongquan Yin and Qingshan Zhang and Yunzheng Li and Pengjun Yao",

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AU - Zhang, Ying

AU - Yin, Hongquan

AU - Zhang, Qingshan

AU - Li, Yunzheng

AU - Yao, Pengjun

PY - 2016/10/3

Y1 - 2016/10/3

N2 - A novel green scale inhibitor, polyaspartic acid/urea graft copolymer (PASP/Urea), was synthesized by polysuccinimide (PSI) and urea. PASP/Urea was a non-toxic, non-phosphorus, biodegradable acylamino copolymer. The structure of PASP/Urea was characterized by Fourier transform infrared spectroscopy (IR), 1H nuclear magnetic resonance (1H NMR) and gel permeation chromatography (GPC) analysis. Its scale inhibition performance was estimated with static scale inhibition methods. The influence of PASP/Urea on formation of CaCO3, CaSO4 and Ca3(PO4)2 was investigated using scanning electronic microscopy (SEM). The PASP/Urea exhibited more excellent scale inhibition property against CaCO3, CaSO4 and Ca3(PO4)2 than the PASP and the comprehensive scale inhibition property of PASP/Urea is much better than the property of PASP. The scale inhibition efficiency of PASP/Urea against CaCO3 was 93% when the dosage of PASP/Urea was 10 mg/L. The inhibition efficiency against CaSO4 increased to 97% in the PASP/Urea concentration of 4 mg/L. The inhibition efficiency against Ca3(PO4)2 reached up to 100% in the concentration of 12 mg/L. The results of SEM indicated that the scale crystals became irregular and distorted and the formation of scales was inhibited when the PASP/Urea was added.

AB - A novel green scale inhibitor, polyaspartic acid/urea graft copolymer (PASP/Urea), was synthesized by polysuccinimide (PSI) and urea. PASP/Urea was a non-toxic, non-phosphorus, biodegradable acylamino copolymer. The structure of PASP/Urea was characterized by Fourier transform infrared spectroscopy (IR), 1H nuclear magnetic resonance (1H NMR) and gel permeation chromatography (GPC) analysis. Its scale inhibition performance was estimated with static scale inhibition methods. The influence of PASP/Urea on formation of CaCO3, CaSO4 and Ca3(PO4)2 was investigated using scanning electronic microscopy (SEM). The PASP/Urea exhibited more excellent scale inhibition property against CaCO3, CaSO4 and Ca3(PO4)2 than the PASP and the comprehensive scale inhibition property of PASP/Urea is much better than the property of PASP. The scale inhibition efficiency of PASP/Urea against CaCO3 was 93% when the dosage of PASP/Urea was 10 mg/L. The inhibition efficiency against CaSO4 increased to 97% in the PASP/Urea concentration of 4 mg/L. The inhibition efficiency against Ca3(PO4)2 reached up to 100% in the concentration of 12 mg/L. The results of SEM indicated that the scale crystals became irregular and distorted and the formation of scales was inhibited when the PASP/Urea was added.

KW - Acylamino

KW - Polyaspartic acid/urea

KW - Polysuccinimide

KW - Scale inhibition

KW - Urea

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SP - 92

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JO - Desalination

JF - Desalination

ER -

Synthesis and characterization of novel polyaspartic acid/urea graft copolymer with acylamino group and its scale inhibition performance

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Keywords

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