Emergence of paramagnetism in organic macromolecules during synthesis

Kaushik Mallick; Michael Witcomb; Rudolph Erasmus; André Strydom

doi:10.1080/00222348.2011.563198

Emergence of paramagnetism in organic macromolecules during synthesis

Kaushik Mallick, Michael Witcomb, Rudolph Erasmus, André Strydom

Physics

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

Abstract

Paramagnetism in polyaniline can be generated during synthesis if cerium (IV) ammonium nitrate (CAN) is used as a polymerizing (oxidizing) agent. During the reaction, in situ formation of Ce ³⁺ ions are doped in the spherical polyaniline particles and show paramagnetic behavior throughout the experimental temperature range (400-1.9 K). The result indicated that the Ce ³⁺ ions covalently functionalized with the chain nitrogen of the polyaniline.

Original language	English
Pages (from-to)	134-141
Number of pages	8
Journal	Journal of Macromolecular Science - Physics
Volume	51
Issue number	1
DOIs	https://doi.org/10.1080/00222348.2011.563198
Publication status	Published - 1 Jan 2012

Keywords

SEM
cerium ammonium nitrate
paramagnetism
polyaniline

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Polymers and Plastics
Materials Chemistry

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10.1080/00222348.2011.563198

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abstract = "Paramagnetism in polyaniline can be generated during synthesis if cerium (IV) ammonium nitrate (CAN) is used as a polymerizing (oxidizing) agent. During the reaction, in situ formation of Ce 3+ ions are doped in the spherical polyaniline particles and show paramagnetic behavior throughout the experimental temperature range (400-1.9 K). The result indicated that the Ce 3+ ions covalently functionalized with the chain nitrogen of the polyaniline.",

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AU - Witcomb, Michael

AU - Erasmus, Rudolph

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AB - Paramagnetism in polyaniline can be generated during synthesis if cerium (IV) ammonium nitrate (CAN) is used as a polymerizing (oxidizing) agent. During the reaction, in situ formation of Ce 3+ ions are doped in the spherical polyaniline particles and show paramagnetic behavior throughout the experimental temperature range (400-1.9 K). The result indicated that the Ce 3+ ions covalently functionalized with the chain nitrogen of the polyaniline.

KW - SEM

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KW - paramagnetism

KW - polyaniline

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Emergence of paramagnetism in organic macromolecules during synthesis

Abstract

Keywords

ASJC Scopus subject areas

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