Studies on the complexation between generation-4.5 methyl ester-terminated poly(amidoamine) dendrimer and Pd2+ ions in methanol

Wenting Lu; Guoping Li; Yunjun Luo; Yujuan Jin

doi:10.1002/app.29780

Studies on the complexation between generation-4.5 methyl ester-terminated poly(amidoamine) dendrimer and Pd²⁺ ions in methanol

Wenting Lu, Guoping Li, Yunjun Luo^*, Yujuan Jin

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

1 Citation (Scopus)

Abstract

Poly(amidoamine) (PAMAM) dendrimers have attracted attention because of their well-defined molecule structures and chemical versatility, which also complicate the mechanism of interactions between metal ions and PAMAM dendrimers. To further understand the complexation of dendrimers with metal ions, the interactions between Pd²⁺ ions and G4.5-COOCH₃ PAMAM dendrimers were investigated by UV-vis and FTIR spectrophotometric method. The results show that the addition of K₂PdCl₄ results in covalent attachment of the PdCl^-₃ akoholysis product of this complex to tertiary amines within the dendrimers under the appropriate conditions. This process was also supported by X-ray photoelectron spectroscopy data of the new complex which indicated a 1: 3 Pd/Cl ratio. The maximum loading of 80 Pd²⁺ ions within the G4.5-COOCH₃ dendrimers and the best pH value of 8.3 for complexation system are also obtained. Details regarding the Pd species present in solution of different chemical environments are reported

Original language	English
Pages (from-to)	2854-2858
Number of pages	5
Journal	Journal of Applied Polymer Science
Volume	112
Issue number	5
DOIs	https://doi.org/10.1002/app.29780
Publication status	Published - 5 Jun 2009

Keywords

(PAMAM)
Complexation
Dendrimers
Pd ions
Poly(amidoamine)
Spectrophotometric method
Template method

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10.1002/app.29780

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title = "Studies on the complexation between generation-4.5 methyl ester-terminated poly(amidoamine) dendrimer and Pd2+ ions in methanol",

abstract = "Poly(amidoamine) (PAMAM) dendrimers have attracted attention because of their well-defined molecule structures and chemical versatility, which also complicate the mechanism of interactions between metal ions and PAMAM dendrimers. To further understand the complexation of dendrimers with metal ions, the interactions between Pd2+ ions and G4.5-COOCH3 PAMAM dendrimers were investigated by UV-vis and FTIR spectrophotometric method. The results show that the addition of K2PdCl4 results in covalent attachment of the PdCl-3 akoholysis product of this complex to tertiary amines within the dendrimers under the appropriate conditions. This process was also supported by X-ray photoelectron spectroscopy data of the new complex which indicated a 1: 3 Pd/Cl ratio. The maximum loading of 80 Pd2+ ions within the G4.5-COOCH3 dendrimers and the best pH value of 8.3 for complexation system are also obtained. Details regarding the Pd species present in solution of different chemical environments are reported",

keywords = "(PAMAM), Complexation, Dendrimers, Pd ions, Poly(amidoamine), Spectrophotometric method, Template method",

author = "Wenting Lu and Guoping Li and Yunjun Luo and Yujuan Jin",

year = "2009",

month = jun,

day = "5",

doi = "10.1002/app.29780",

language = "English",

volume = "112",

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T1 - Studies on the complexation between generation-4.5 methyl ester-terminated poly(amidoamine) dendrimer and Pd2+ ions in methanol

AU - Lu, Wenting

AU - Li, Guoping

AU - Luo, Yunjun

AU - Jin, Yujuan

PY - 2009/6/5

Y1 - 2009/6/5

N2 - Poly(amidoamine) (PAMAM) dendrimers have attracted attention because of their well-defined molecule structures and chemical versatility, which also complicate the mechanism of interactions between metal ions and PAMAM dendrimers. To further understand the complexation of dendrimers with metal ions, the interactions between Pd2+ ions and G4.5-COOCH3 PAMAM dendrimers were investigated by UV-vis and FTIR spectrophotometric method. The results show that the addition of K2PdCl4 results in covalent attachment of the PdCl-3 akoholysis product of this complex to tertiary amines within the dendrimers under the appropriate conditions. This process was also supported by X-ray photoelectron spectroscopy data of the new complex which indicated a 1: 3 Pd/Cl ratio. The maximum loading of 80 Pd2+ ions within the G4.5-COOCH3 dendrimers and the best pH value of 8.3 for complexation system are also obtained. Details regarding the Pd species present in solution of different chemical environments are reported

AB - Poly(amidoamine) (PAMAM) dendrimers have attracted attention because of their well-defined molecule structures and chemical versatility, which also complicate the mechanism of interactions between metal ions and PAMAM dendrimers. To further understand the complexation of dendrimers with metal ions, the interactions between Pd2+ ions and G4.5-COOCH3 PAMAM dendrimers were investigated by UV-vis and FTIR spectrophotometric method. The results show that the addition of K2PdCl4 results in covalent attachment of the PdCl-3 akoholysis product of this complex to tertiary amines within the dendrimers under the appropriate conditions. This process was also supported by X-ray photoelectron spectroscopy data of the new complex which indicated a 1: 3 Pd/Cl ratio. The maximum loading of 80 Pd2+ ions within the G4.5-COOCH3 dendrimers and the best pH value of 8.3 for complexation system are also obtained. Details regarding the Pd species present in solution of different chemical environments are reported

KW - (PAMAM)

KW - Complexation

KW - Dendrimers

KW - Pd ions

KW - Poly(amidoamine)

KW - Spectrophotometric method

KW - Template method

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DO - 10.1002/app.29780

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AN - SCOPUS:64249169313

SN - 0021-8995

VL - 112

SP - 2854

EP - 2858

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 5

ER -

Studies on the complexation between generation-4.5 methyl ester-terminated poly(amidoamine) dendrimer and Pd²⁺ ions in methanol

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Keywords

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