Magnetic properties of undoped and doped poly[(3-methoxy)4,6-toluene] (P3mt)

被引：0
作者：
Ayachi, S.
Alimi, K. [1 ]
Molinie, P.
机构：
[1] Fac Sci Monastir, Unite Rech Mat Nouveaux & Disposit Elect Orgnan, Monastir 5000, Tunisia
[2] CNRS, UMR 6502, Inst Mat Jean Rouxel, F-44322 Nantes 3, France
来源：
SYNTHETIC METALS | 2006年 / 156卷 / 21-24期
关键词：
ESR; radical center; susceptibility; hyperfine coupling; CONDUCTING POLYANILINE; PHENYLENE; ELECTROLUMINESCENCE; PHOTOLUMINESCENCE; SUSCEPTIBILITY; POLYMERS;
D O I：
10.1016/j.synthmet.2006.11.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetic properties of two types of poly [(3-methoxy)4,6-toluene] (P3mt(1) and P3mt(2)) are studied before and after doping with iodine or organic acids (CF3COOH or CH3SO3H) in a range of temperature varying from 110 to 460 K. Under 250 K and independent of the state, the magnetic susceptibility chi obeys Curie law dependence. Up to this temperature, chi is governed by a Pauli law contribution. This fact can be related to localized or delocalized spin. Furthermore, iodine doping induces distortion in the polymers that affects the ESR line distribution. In the case of organic acids doping process, a hyperfine structure with hyperfine coupling constant values between 2.2 and 2.8 G is observed. As the spin concentration decreases, we deduce that in the case of P3mt(2), there is a de-doping process. (c) 2006 Elsevier B.V. All rights reserved.
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页码：1415 / 1421
页数：7
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