Extrinsic and intrinsic structural change during heat treatment of polyaniline

被引：97

作者：

Bhadra, Sambhu ^{[1
]}

Khastgir, Dipak ^{[1
]}

机构：

[1] Indian Inst Technol, Ctr Rubber Technol, Kharagpur 721302, W Bengal, India

来源：

POLYMER DEGRADATION AND STABILITY | 2008年 / 93卷 / 06期

关键词：

heat treatment; polyaniline; x-ray; oxidation; degradation; cross-linking;

D O I：

10.1016/j.polymdegradstab.2008.03.013

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

HCl doped polyaniline (PAni) was synthesized electrochemically and heat treated at 150 degrees C, 200 degrees C and 250 degrees C for 30 min in vacuum. Different intrinsic and extrinsic structural changes due to heat treatment were determined from XRD, TGA, FT-IR, conductivity and solubility measurement. When HCl doped PAni is subjected to heat treatment, different changes are taking place in the system like doping, dedoping (extrinsic), oxidation, chain scission, cross-linking and changes in crystal structure (intrinsic). Mechanism for doping, dedoping, oxidation, chain scission and cross-linking is proposed. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1094 / 1099

页数：6

共 50 条

[1] Annealing effect in polyaniline-CSA upon moderate heating [J].

Berner, D ;

Davenas, J ;

Djurado, D ;

Nechtschein, M ;

Rannou, P ;

Travers, JP .

SYNTHETIC METALS, 1999, 101 (1-3) :727-728

[2] Improvement of conductivity of electrochemically synthesized polyaniline [J].

Bhadra, Sambhu ;

Chattopadhyay, Santanu ;

Singha, Nikhil K. ;

Khastgir, Dipak .

JOURNAL OF APPLIED POLYMER SCIENCE, 2008, 108 (01) :57-64

[3] Degradation and stability of polyaniline on exposure to electron beam irradiation (structure-property relationship) [J].

Bhadra, Sambhu ;

Khastgir, Dipak .

POLYMER DEGRADATION AND STABILITY, 2007, 92 (10) :1824-1832

[4] In situ preparation of polyaniline coated fumed and precipitated silica fillers and their composites with nitrile rubber (Investigation on structure-property relationship) [J].

Bhadra, Sambhu ;

Khastgir, Dipak .

EUROPEAN POLYMER JOURNAL, 2007, 43 (10) :4332-4343

[5]

Bhadra S, 2007, POLYM INT, V56, P919, DOI [10.1002/pi.2225, 10.1002/PI.2225]

[6] Electrochemical synthesis of polyaniline and its comparison with chemically synthesized polyaniline [J].

Bhadra, Sambhu ;

Singha, Nikhil K. ;

Khastgir, Dipak .

JOURNAL OF APPLIED POLYMER SCIENCE, 2007, 104 (03) :1900-1904

[7] Polyaniline by new miniemulsion polymerization and the effect of reducing agent on conductivity [J].

Bhadra, Sambhu ;

Singha, Nikhil K. ;

Khastgir, Dipak .

SYNTHETIC METALS, 2006, 156 (16-17) :1148-1154

[8] THE EFFECT OF HEATING ON POLYANILINE POWDERS STUDIED BY REAL-TIME SYNCHROTRON RADIATION DIFFRACTION, MASS-SPECTROMETRY AND THERMAL-ANALYSIS [J].

BOYLE, A ;

PENNEAU, JF ;

GENIES, E ;

RIEKEL, C .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1992, 30 (03) :265-274

[9]

CASTELLAN GW, 1996, PHYS CHEM, P701

[10] Thermal stability of polyaniline [J].

Chandrakanthi, N ;

Careem, MA .

POLYMER BULLETIN, 2000, 44 (01) :101-108

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