JPS59191728A - Production of polymer composition - Google Patents

Abstract

PURPOSE:To produce a polymer composition excellent in mechanical strength and functional property, and useful as a material for electronic devices or a polymeric material, by electrolytically oxidizing a specified compound in the presence of a supporting electrolyte and an electron acceptor. CONSTITUTION:A supporting electrolyte (e.g., tetraethylammonium chlorate) and an electron acceptor (e.g., o-phthalodinitrile) are added to a compound selected from the group consisting of benzene (derivatives), five-membered heterocyclic compounds and compounds having a benzene ring or five-membered heterocyclic ring which is attached directly or through a linkage such as ether, sulfide, selenide or telluride, and the mixture is electrolytically oxidized to obtain a polymer composition. This polymer composition is then electrolytically reduced. EFFECT:Anions which are incorporated as impurities by the supporting electrolyte can be uniformly removed and therefore a dense uniform and tough polymer composition can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for producing a polymer composition used in electronic devices or polymer material applications.

Conventional configuration and its problems 2/. -2° Conventionally, for example, a method has been disclosed in which a conductive polymer composition obtained by electrolytic oxidation is electrolytically reduced to obtain a semiconductive or insulating polymer composition. However, these polymer compositions generally do not have sufficient mechanical strength and are heterogeneous, making it difficult to put them into practical use.

OBJECTS OF THE INVENTION The object of the present invention is to provide a method for producing a polymer composition having sufficient mechanical strength and excellent functionality to withstand practical use.

Structure of the Invention The method for producing the polymer composition of the present invention is to produce a composition produced by electrolytic oxidation polymerization of a compound selected from the group consisting of a), b), and C) below in the presence of a supporting electrolyte and an electron acceptor. It is characterized by electrolytic reduction.

(-) Benzene or a derivative thereof (b) Five-membered heterocyclic compound (C) Benzene ring, five-membered heterocyclic ring directly or ether,
Compounds linked via sulfide, selenide or telluride bonds.

By this method, a polymer composition with sufficient mechanical strength and excellent functionality can be obtained.

Here, as the supporting electrolyte, there are salts containing borosaponide ions, perhalogenate ions, sulfate ions, etc. Furthermore, the following are effective as electron acceptors.

That is, nitro compounds, aromatic nitrile compounds, tetracyanoethylene, tetracyanoquinodimethane derivatives,
Tetrasia tunaphtaquinodimethane derivatives, benzoquinone derivatives, sulfuric acid, sulfonic acid.

These include sulfuric acid ester, sulfonic acid ester, trihalogenoboron, trihalogenaluminum, trihalogenogallium, pentahalogenoarsenic, pentahalogenoantimony, and the like. Specific examples of these include nitromethane, nitrobenzene, 2,4.7-dolinitronefluorenone, benzonitrile, phthalodinitrile, 7,7,8.8-tetracyanoquinodimethane, 2,2,6.6-tetra Cyanonaphthaquinodimethane, p-benzoquinone, p-fluoranil, p-chloranil, dicyanodichloroquinone, 1,3
, 6.8-tetracyanopyrene, benzenesulfonic acid,
Dimethyl sulfate, diethyl sulfate.

Boron trifluoride, aluminum chloride, gallium chloride.

These include arsenic pentafluoride and antimony pentafluoride.

When the compounds to be electrolytically oxidized, the supporting electrolyte, and the electron acceptor listed in a, b, and c above are all solid, they are dissolved in a suitable solvent and electrolytically oxidized. If at least one of these is a liquid, the other may be dissolved or dispersed therein. In particular, when the electron acceptor is liquid, it can be effectively used as a solvent. Gases such as arsenic pentafluoride can also be used by dissolving them in a suitable solvent or by blowing them directly into the solution.

The presence of these electron acceptors gives the composition produced by electrolytic oxidation excellent properties such as a dense and uniform composition and high mechanical strength. When these compositions are electrolytically reduced, the anions in the supporting electrolyte that have been incorporated as impurities are uniformly deionized, yielding dense, homogeneous, and strong polymer compositions. The basic skeleton of these polymer compositions is a polymer in which, for example, a benzene ring or a five-membered hetero ring is bonded directly or through an ether, sulfide, selenide, or telluride linkage. The impurity anions incorporated during electrolytic oxidation do not necessarily all need to be deionized during electrolytic reduction, and may partially remain in the basic skeleton depending on the use and function.

Description of examples The present invention will be explained in more detail with reference to Examples below.

Thiophene 6, 0-phthalodinitrile 7, 1゜tetraethylammonium perchloride) 1.4y at 300
A pair of platinum plate electrodes were inserted into a solution dissolved in -nl of acetonitrile, and electricity was applied for 1 hour at an anode current density of 2 mA/cm to obtain a black-rimmed polymer film on the anode. Then, the polarity of the electrode was reversed and the tetraethylammonium hachloride) 1.449' (i7 dissolved 30
10-1 at a cathodic current density of 4 tnA/shoulder in 0 ml acetonitrile solution with a current application time between 1 minute and 1 hour.
A dense and strong film with an electrical conductivity in the range of ~1 o"S (Siemens)/6 base S cm was obtained. The lower the electrical conductivity, the more reddish it becomes, and the color is continuous from black edge color to reddish ox. A family of films was obtained that transitioned to .

The elemental composition after electrolytic reduction for 1 hour was C: 52%.

H: 3.8%, S: Section 27, N: 2.4%, C
R: 2.0%, and the elemental composition with carbon normalized to 4.0 is C4, OH3, 5S0.78NO, 170,062. These films are useful as semiconductor to dielectric materials. It also has excellent heat resistance, making it an excellent structural material.

Effects of the Invention As described above, the production method of the present invention provides a polymer composition with sufficient mechanical strength and excellent functionality.

Claims (1)

[Scope of Claims] A step of electrolytically oxidizing a compound selected from the group consisting of a) t b) and C) below in the presence of a supporting electrolyte and an electron acceptor to obtain a polymer composition; 1. A method for producing a polymer composition, comprising the step of electrolytically reducing the composition. a) Benzene or its derivatives b) Five-membered heterocyclic compounds C) Compounds in which benzene rings or five-membered heterocycles are bonded directly or through an ether, sulfide, selenide or telluride bond