Ultra-thin films of poly(o-ethoxyaniline) formed from doped monolayers

被引：8

作者：

Mello, SV

Mattoso, LHC

Oliveira, ON

Faria, RM

机构：

[1] EMBRAPA, CNPDIA, BR-13560970 SAO CARLOS, SP, BRAZIL

[2] USP, INST FIS, BR-13560970 SAO CARLOS, SP, BRAZIL

来源：

THIN SOLID FILMS | 1996年 / 284卷

关键词：

conducting polymers; polyaniline derivative; Langmuir-Blodgett films; doping;

D O I：

10.1016/S0040-6090(95)08302-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of pH and type of doping acid on monolayer behavior is investigated for poly(o-ethoxyaniline). Doping during monolayer formation is essential for high-quality Langmuir-Blodgett (LB) films to be obtained. Langmuir films were spread on a variety of subphases, containing trifluoroacetic, hydrochloric, sulfuric or perchloric acids at different concentrations. Doping of the polymer occurs at pH values lower than 3 when spreading of the solution is improved. Pressure-area isotherms display less hysteresis and higher collapse pressures when the polymer is pre-doped and spread on a pH = 1 subphase. Under these conditions monolayers could be transferred from the aqueous subphase onto hydrophilic substrates in the form of Z-type LB films.

引用

页码：187 / 190

页数：4

共 8 条

[1]

[Anonymous], SYNTHETIC MET

[2] NEW DEVELOPMENTS IN THE LANGMUIR-BLODGETT MANIPULATION OF ELECTROACTIVE POLYMERS [J].