高聚合度聚磷酸铵中特征磷的31P核磁共振分析

Yina Liu; Rongjie Yang; Weiguo Hu; Dinghua Li

doi:10.7503/cjcu20200365

高聚合度聚磷酸铵中特征磷的³¹P核磁共振分析

Translated title of the contribution: Analysis of Characteristic Phosphorus in High Polymerization Ammonium Polyphosphate by ³¹P NMR

Yina Liu, Rongjie Yang^*, Weiguo Hu, Dinghua Li

^*Corresponding author for this work

School of Material Science and Engineering

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

1 Citation (Scopus)

Abstract

In this paper, phosphorus nuclear magnetic resonance(³¹P NMR), J-resolved and ³¹P-DOSY are used to study the characteristic phosphorus and coupling constants of APP. Studies have shown that the end-group phosphors of polyphosphate and diphosphate have double-peak and single-peak characteristics respectively, and the coupling constant of spin-coupled peak is 19.4 Hz; Ammonium phosphate(Ⅱ-APP) contains ammonium di-polyphosphate and ammonium orthophosphate. When ³¹P NMR is used to quantitatively characterize the degree of APP polymerization, the terminal phosphorus of ammonium di-polyphosphate should be excluded; when APP is prepared by dissolving APP in water at 100 ℃, the appearance of the phosphorus resonance peak of small molecule middle phosphorus proves that APP has partially broken chain.

Translated title of the contribution	Analysis of Characteristic Phosphorus in High Polymerization Ammonium Polyphosphate by ³¹P NMR
Original language	Chinese (Traditional)
Pages (from-to)	2832-2837
Number of pages	6
Journal	Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities
Volume	41
Issue number	12
DOIs	https://doi.org/10.7503/cjcu20200365
Publication status	Published - 10 Dec 2020

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title = "高聚合度聚磷酸铵中特征磷的31P核磁共振分析",

abstract = "In this paper, phosphorus nuclear magnetic resonance(31P NMR), J-resolved and 31P-DOSY are used to study the characteristic phosphorus and coupling constants of APP. Studies have shown that the end-group phosphors of polyphosphate and diphosphate have double-peak and single-peak characteristics respectively, and the coupling constant of spin-coupled peak is 19.4 Hz; Ammonium phosphate(Ⅱ-APP) contains ammonium di-polyphosphate and ammonium orthophosphate. When 31P NMR is used to quantitatively characterize the degree of APP polymerization, the terminal phosphorus of ammonium di-polyphosphate should be excluded; when APP is prepared by dissolving APP in water at 100 ℃, the appearance of the phosphorus resonance peak of small molecule middle phosphorus proves that APP has partially broken chain.",

keywords = "Ammonium polyphosphate, Characteristic phosphorus, Degree of polymerization, Nuclear magnetic resonance",

author = "Yina Liu and Rongjie Yang and Weiguo Hu and Dinghua Li",

year = "2020",

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doi = "10.7503/cjcu20200365",

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T1 - 高聚合度聚磷酸铵中特征磷的31P核磁共振分析

AU - Liu, Yina

AU - Yang, Rongjie

AU - Hu, Weiguo

AU - Li, Dinghua

PY - 2020/12/10

Y1 - 2020/12/10

N2 - In this paper, phosphorus nuclear magnetic resonance(31P NMR), J-resolved and 31P-DOSY are used to study the characteristic phosphorus and coupling constants of APP. Studies have shown that the end-group phosphors of polyphosphate and diphosphate have double-peak and single-peak characteristics respectively, and the coupling constant of spin-coupled peak is 19.4 Hz; Ammonium phosphate(Ⅱ-APP) contains ammonium di-polyphosphate and ammonium orthophosphate. When 31P NMR is used to quantitatively characterize the degree of APP polymerization, the terminal phosphorus of ammonium di-polyphosphate should be excluded; when APP is prepared by dissolving APP in water at 100 ℃, the appearance of the phosphorus resonance peak of small molecule middle phosphorus proves that APP has partially broken chain.

AB - In this paper, phosphorus nuclear magnetic resonance(31P NMR), J-resolved and 31P-DOSY are used to study the characteristic phosphorus and coupling constants of APP. Studies have shown that the end-group phosphors of polyphosphate and diphosphate have double-peak and single-peak characteristics respectively, and the coupling constant of spin-coupled peak is 19.4 Hz; Ammonium phosphate(Ⅱ-APP) contains ammonium di-polyphosphate and ammonium orthophosphate. When 31P NMR is used to quantitatively characterize the degree of APP polymerization, the terminal phosphorus of ammonium di-polyphosphate should be excluded; when APP is prepared by dissolving APP in water at 100 ℃, the appearance of the phosphorus resonance peak of small molecule middle phosphorus proves that APP has partially broken chain.

KW - Ammonium polyphosphate

KW - Characteristic phosphorus

KW - Degree of polymerization

KW - Nuclear magnetic resonance

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JO - Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities

JF - Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities

IS - 12

ER -

高聚合度聚磷酸铵中特征磷的³¹P核磁共振分析

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