Systematic study on chemical oxidative and solid-state polymerization of poly(3,4-ethylenedithiathiophene)

被引：42
作者：
Chen, Shuai [1 ]
Lu, Baoyang [1 ,2 ]
Duan, Xuemin [1 ]
Xu, Jingkun [1 ,2 ]
机构：
[1] Jiangxi Sci & Technol Normal Univ, Sch Pharm, Nanchang 330013, Peoples R China
[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2012年 / 50卷 / 10期
基金：
中国国家自然科学基金;
关键词：
analogs of PEDOT; chemical oxidative polymerization; conducting polymers; poly(3; 4-ethylenedithiathiophene); solid-state polymerization; PI-CONJUGATED SYSTEMS; ELECTRONIC-PROPERTIES; BUILDING-BLOCK; SULFUR ANALOG; POLY(3,4-ALKYLENEDIOXYTHIOPHENE) DERIVATIVES; ELECTROCHROMIC POLYMERS; CONVENIENT SYNTHESIS; POLY(3,4-ETHYLENEDIOXYTHIOPHENE); POLYTHIOPHENE; THIOPHENE;
D O I：
10.1002/pola.25971
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Systematic research on the synthesis, chemical oxidative polymerization of 3,4-ethylenedithiathiophene (EDTT) in the presence of surfactants or not, and solid-state polymerization of 2,5-dibromo-3,4-ethylenedithiathiophene (DBEDTT) and 2,5-diiodo-3,4-ethylenedithiathiophene (DIEDTT) under solventless and oxidant-free conditions has been investigated. Effects of oxidants (Fe3+ salts, persulfate salts, peroxides, and Ce4+ salts), solvents (H2O, CH3CN/H2O, and CH3CN), surfactants, and so forth on polymerization reactions and properties of poly(3,4-ethylenedithiathiophene) (PEDTT) were discussed. Characterizations indicated that FeCl3 was more suitable oxidant for oxidative polymerization of EDTT, while CH3CN was a better solvent to form PEDTT powders with higher yields and electrical conductivities. Dispersing these powders in aqueous polystyrene sulfonic acid (PSSH) solution showed better stability and film-forming property than sodium dodecylsulfate and sodium dodecyl benzene sulfonate. Oxidative polymerization of EDTT in aqueous PSSH solutions formed the solution processable PEDTT dispersions with good storing stability and film-forming performance. Solvent treatment showed indistinctive effect on electrical conductivity of free-standing PEDTT films. As-formed PEDTT synthesized from solid-state polymerization showed similar electrical conductivity, poorer stability, but better thermoelectric property than oxidative polymerization. Contrastingly, PEDTT synthesized from DIEDTT showed higher electrical conductivity (0.18 S cm-1) than DBEDTT which showed better thermoelectric property with higher power factor value (6.7 X 10-9 W m-1 K-2). (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
引用
收藏
页码：1967 / 1978
页数：12
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