JP2005240001A - New arylamine polymer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a new arylamine polymer which has excellent emission characteristics and durability, and is useful as a polymer material for an organic EL element, and is a charge transportabile polymer material for an organic transistor. <P>SOLUTION: This polymer comprises a repeating unit represented by formula (1) (wherein Ar<SP>1</SP>is a substituted or unsubstituted aromatic hydrocarbon group; Ar<SP>2</SP>and Ar<SP>3</SP>are each independently a divalent substituted or unsubstituted aromatic hydrocarbon group; and Ar<SP>4</SP>is a divalent substituted or unsubstituted benzene, thiophene, biphenyl, fluorene, or anthracene group). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a novel arylamine polymer, and more particularly to a novel arylamine polymer useful as an organic EL device material, an organic transistor material, or the like.

  Organic electroluminescence elements and organic transistor elements have been proposed by utilizing the light emission characteristics and charge transport characteristics of organic materials. By using an organic material for these elements, advantages such as light weight, low cost, low manufacturing cost, and flexibility are expected.

  Various materials of low molecular weight and high molecular weight have been reported as materials for organic thin film EL elements. In low molecular weight systems, it has been reported that high efficiency is achieved by employing various laminated structures, and that durability is improved by well controlling the doping method. However, in the case of low molecular aggregates, it has been reported that the film state changes over time for a long time, and has an essential problem regarding the stability of the film. On the other hand, in the case of polymer materials, energetic studies have been made mainly on π-conjugated polymers such as PPV (poly-p-phenylene vinylene) series and poly-thiophene. However, it is difficult to increase the purity of these material systems and the intrinsically low fluorescence quantum yield is cited as a problem, and at present, high-performance EL devices have not been obtained. . In addition, polymer materials containing an arylamine moiety in the π-conjugated polymer main chain have been studied (Patent Document 1, Patent Document 2, Patent Document 3, Patent Document 4, Non-Patent Document 1). In consideration of the fact that polymer materials are inherently stable in the glass state, if high fluorescence quantum efficiency can be imparted, an excellent EL device can be constructed, and further improvements have been made in this field. .

  On the other hand, various materials of low molecular weight and high molecular weight have been reported for organic thin film transistor elements. For example, pentacene (Non-Patent Document 2), phthalocyanine (Non-Patent Document 3), fullerene (Patent Document 5, Non-Patent Document 4), anthradithiophene (Patent Document 6), thiophene oligomer (Patent Document 7, Patent Document 5), Bisdithienothiophene (Non-Patent Document 6) and the like, and polymer materials include several materials such as Polythiophene (Non-Patent Document 7) and Polythienylene Vinylene (Non-Patent Document 8). .

However, even in the above materials, there is a problem regarding the stability of the film in the low molecular system, and there is a problem in the low performance due to the purity in the high molecular system, and further improvement is desired.
Japanese Patent Laid-Open No. 10-310635 JP-A-8-157575 JP 2002-515078 gazette WO97 / 09394 JP-A-8-228034 JP-A-11-195790 Japanese Patent No. 3145294 Synth. Met. , 84, 269, 1997 Synth. Met. , 51, 419, 1992 Appl. Phys. Lett. 69, 3066, 1996. Appl. Phys. Lett. 67, 121, 1995. Chem. Mate. 4,457, 1998. Appl. Phys. Lett. 71, 3871, 1997. Appl. Phys. Lett. 69, 4108, 1996. Appl. Phys. Lett. 63, 1372, 1993.

  The present invention has been made in view of the above-described state of the art, and has excellent light emitting characteristics and excellent durability as a polymer material for organic thin film EL elements, and a polymer material for active layers of organic transistors. It is an object to provide a novel arylamine polymer useful as:

  As a result of intensive studies, the present inventors have found that the above problems can be solved by a novel arylamine polymer containing a specific structural unit, and have reached the present invention.

  That is, according to the present invention, the following (1) to (4) are provided.

(1)
The following general formula (I)

で表される繰り返し単位を有し：
Ａｒ^１は置換又は無置換の芳香族炭化水素基であり；
Ａｒ^２及びＡｒ^３はそれぞれ独立に置換又は無置換の芳香族炭化水素基の二価基であり；かつ
Ａｒ^４は置換若しくは無置換の、ベンゼン、チオフェン、ビフェニル、フルオレン又はアントラセンの二価基である；
ことを特徴とする重合体。これにより、耐久性に優れながら、電荷輸送性及び発光特性を示す高分子重合体を得ることができる。

Having repeating units represented by:
Ar ¹ is a substituted or unsubstituted aromatic hydrocarbon group;
Ar ² and Ar ³ are each independently a divalent group of a substituted or unsubstituted aromatic hydrocarbon group; and Ar ⁴ is a substituted or unsubstituted divalent group of benzene, thiophene, biphenyl, fluorene or anthracene. is there;
A polymer characterized by the above. Thereby, it is possible to obtain a high molecular polymer exhibiting charge transportability and light emission characteristics while having excellent durability.

(2)
The following general formula (II)

で表される繰り返し単位を有し：
Ａｒ^１は置換又は無置換の芳香族炭化水素基であり；
Ａｒ^４は置換若しくは無置換の、ベンゼン、チオフェン、ビフェニル、フルオレン又はアントラセンの二価基であり；
ｘ及びｙは１以上４以下の整数であり；
Ｒ^１及びＲ^２はそれぞれ独立に、水素基、ハロゲン基、置換若しくは無置換のアルキル基、置換若しくは無置換のアルコキシ基又は置換若しくは無置換のアルキルチオ基であり；かつ
前記ｘ及び／又は前記ｙが２以上である場合、複数個の前記Ｒ^１及び前記Ｒ^２は、それぞれ独立している；
ことを特徴とする重合体。これにより、耐久性に優れながら、電荷輸送性及び発光特性の優れた高分子重合体を得ることができる。

Having repeating units represented by:
Ar ¹ is a substituted or unsubstituted aromatic hydrocarbon group;
Ar ⁴ is a substituted or unsubstituted divalent group of benzene, thiophene, biphenyl, fluorene or anthracene;
x and y are integers of 1 or more and 4 or less;
R ¹ and R ² are each independently a hydrogen group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkylthio group; and x and / or y When R is 2 or more, a plurality of R ¹ and R ² are independent from each other;
A polymer characterized by the above. Thereby, it is possible to obtain a polymer having excellent charge transportability and light emission characteristics while having excellent durability.

(3)
The following general formula (III)

で表される繰り返し単位を有し：
Ａｒ^４は置換若しくは無置換の、ベンゼン、チオフェン、ビフェニル、フルオレン又はアントラセンの二価基であり；
ｘ及びｙは１以上４以下の整数であり；
ｚは１以上５以下の整数であり；
Ｒ^１及びＲ^２はそれぞれ独立に水素基、ハロゲン基、置換若しくは無置換のアルキル基、置換若しくは無置換のアルコキシ基又は置換若しくは無置換のアルキルチオ基であり；
Ｒ^３は水素基、ハロゲン基、置換若しくは無置換のアルキル基、置換若しくは無置換のアルコキシ基、置換若しくは無置換のアルキルチオ基又は置換若しくは無置換のアリール基であり；かつ
前記ｘ、前記ｙ及び前記ｚが２以上である場合、複数個の前記Ｒ^１、前記Ｒ^２及び前記Ｒ^３はそれぞれ独立している；
ことを特徴とする重合体。これにより、耐久性に優れながら、電荷輸送性及び発光特性の優れた高分子重合体を得ることができる。

Having repeating units represented by:
Ar ⁴ is a substituted or unsubstituted divalent group of benzene, thiophene, biphenyl, fluorene or anthracene;
x and y are integers of 1 or more and 4 or less;
z is an integer from 1 to 5;
R ¹ and R ² are each independently a hydrogen group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkylthio group;
R ³ is a hydrogen group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkylthio group or a substituted or unsubstituted aryl group; and x, y and When z is 2 or more, the plurality of R ¹ , R ² and R ³ are independent from each other;
A polymer characterized by the above. Thereby, it is possible to obtain a polymer having excellent charge transportability and light emission characteristics while having excellent durability.

(4)
The following general formula (IV)

で表される繰り返し単位を有し：
Ａｒ^４は置換若しくは無置換の、ベンゼン、チオフェン、ビフェニル、フルオレン又はアントラセンの二価基である；
ｖは１以上３以下の整数であり；
ｗ、ｘ及びｙは１以上４以下の整数であり；
Ｒ^１、Ｒ^２、Ｒ^４、Ｒ^５、Ｒ^６及びＲ^７はそれぞれ独立に水素基、ハロゲン基、置換若しくは無置換のアルキル基、置換若しくは無置換のアルコキシ基又は置換若しくは無置換のアルキルチオ基であり；かつ
前記ｖ、前記ｗ、前記ｘ及び前記ｙが２以上である場合、複数個の前記Ｒ^１、前記Ｒ^２、前記Ｒ^４及び前記Ｒ^５がそれぞれ独立している；
ことを特徴とする重合体。これにより、耐久性に優れながら、電荷輸送性及び発光特性の優れた高分子重合体を得ることができる。

Having repeating units represented by:
Ar ⁴ is a substituted or unsubstituted divalent group of benzene, thiophene, biphenyl, fluorene or anthracene;
v is an integer of 1 to 3,
w, x and y are integers of 1 or more and 4 or less;
R ¹ , R ² , R ⁴ , R ⁵ , R ⁶ and R ⁷ are each independently a hydrogen group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkylthio group. And when v, w, x and y are 2 or more, a plurality of R ¹ , R ² , R ⁴ and R ⁵ are independent from each other;
A polymer characterized by the above. Thereby, it is possible to obtain a polymer having excellent charge transportability and light emission characteristics while having excellent durability.

  The novel arylamine polymer of the present invention is useful as a polymer material for an organic thin film EL device having excellent light emission characteristics and excellent durability, and as a charge transporting polymer material for an organic transistor.

  The arylamine polymer of the present invention is useful as a charge transporting polymer material for an organic transistor, and as a polymer material for an organic thin film EL device having excellent light emission characteristics and excellent durability.

  The method for producing the arylamine polymer of the present invention will be described below.

  The production method of the arylamine polymer of the present invention includes, for example, Wittig-Horner reaction using aldehyde and phosphonate, Wittig reaction using aldehyde and phosphonium salt, Heck reaction using vinyl substituent and halide, amine and halide Ullmann reaction using can be used, and can be produced by a known method. In particular, the Wittig-Horner reaction and the Wittig reaction are effective because of the simplicity of the reaction operation.

  As an example, a method for producing a polymer in the present invention using a Wittig-Horner reaction will be described.

  As shown in the following reaction formula, the polymer in the present invention is polymerized by mixing a solution in which the phosphonate ester compound and the aldehyde compound are present stoichiometrically and a base more than twice the molar amount thereof. The reaction proceeds and can be obtained.

本発明のアリールアミン重合体を製造する場合には、例えば、Ａとしてアリールアミン部位、ＢとしてＡｒ^４の組み合わせのモノマーを用いるか、またはＡとしてＡｒ^４、Ｂとしてアリールアミン部位の組み合わせのモノマーを用いればよい。

When producing the arylamine polymer of the present invention, for example, a monomer having a combination of an arylamine moiety as A and an Ar ⁴ as B, or a monomer having a combination of Ar ⁴ as A and an arylamine moiety as B, is used. Use it.

  The dialdehyde compound can be synthesized by various known reactions. For example, the following Vilsmeier reaction,

あるいは、アリールリチウム化合物と、ＤＭＦ、Ｎ−ホルミルモルホリン、Ｎ−ホルミルピペリジン等をはじめとするホルミル化剤との反応、

Alternatively, a reaction of an aryllithium compound with a formylating agent such as DMF, N-formylmorpholine, N-formylpiperidine,

あるいは、下記Ｇａｔｔｅｒｍａｎ反応、

Alternatively, the following Gatterman reaction,

あるいは、ヒドロキシメチル化合物の各種酸化反応、

Alternatively, various oxidation reactions of hydroxymethyl compounds,

等を一例として挙げることができ、これら反応を用いてジアルデヒド化合物を合成することができる。

Can be cited as examples, and dialdehyde compounds can be synthesized using these reactions.

  The phosphonic acid diester compound can also be synthesized by various known reactions, but the following Michaelis-Arbuzov reaction is particularly easy.

上記重合反応に使用する塩基はホスホネートカルボアニオンが形成されるものであれば特に限定されず、金属アルコシド、金属ヒドリド、有機リチウム化合物等が挙げられ、例えばカリウムｔ−ブトキシド、ナトリウムｔ−ブトキシド、リチウムｔ−ブトキシド、カリウム２−メチル−２−ブトキシド、ナトリウム２−メチル−２−ブトキシド、ナトリウムメトキシド、ナトリウムエトキシド、カリウムエトキシド、カリウムメトキシド、水素化ナトリウム、水素化カリウム、メチルリチウム、エチルリチウム、プロピルリチウム、ｎ−ブチルリチウム、ｓ−ブチルリチウム、ｔ−ブチルリチウム、フェニルリチウム、リチウムナフチリド、リチウムアミド、リチウムジイソプロピルアミド等を挙げることができる。

The base used for the polymerization reaction is not particularly limited as long as a phosphonate carbanion is formed, and examples thereof include metal alkoxides, metal hydrides, and organic lithium compounds, such as potassium t-butoxide, sodium t-butoxide, and lithium. t-butoxide, potassium 2-methyl-2-butoxide, sodium 2-methyl-2-butoxide, sodium methoxide, sodium ethoxide, potassium ethoxide, potassium methoxide, sodium hydride, potassium hydride, methyllithium, ethyl Lithium, propyl lithium, n-butyl lithium, s-butyl lithium, t-butyl lithium, phenyl lithium, lithium naphthylide, lithium amide, lithium diisopropylamide and the like can be mentioned.

  The amount of the base used in the reaction is usually only the same amount as the polymerization active point of the phosphonate ester compound, but an excessive amount can be used.

  The above base may be added to the reaction system in a solid state or a suspension solution. However, it is particularly preferable to add the base as a homogeneous solution in order to improve the homogeneity of the resulting polymer. As the solvent for dissolving the base, a solvent that forms a stable solution with the base to be used must be selected, but as other factors, those having a high solubility of the base are preferable, and the high molecular weight product produced in the reaction system Those that do not impair the solubility in the reaction solvent are good. Further, the solvent in which the high molecular weight product to be formed dissolves well is preferable. It can be arbitrarily selected from a system, an amine system, a hydrocarbon solvent and the like.

  Examples of a combination of a base and a solvent for uniformly dissolving the base include, for example, a methanol solution of sodium methoxide, an ethanol solution of sodium ethoxide, a 2-propanol solution of potassium t-butoxide, and 2-methyl-2-methyl ester of potassium t-butoxide. Propanol solution, potassium t-butoxide in tetrahydrofuran, potassium t-butoxide in dioxane, n-butyllithium in hexane, methyllithium in ether, lithium t-butoxide in tetrahydrofuran, lithium diisopropylamide in cyclohexane, potassium bis There are various combinations of solutions including a toluene solution of trimethylsilylamide and the like, and some solutions are easily available as commercial products. From the viewpoint of mild reaction conditions and ease of handling, metal alkoxide-based solutions are preferably used, such as solubility of the polymer to be produced, ease of handling, efficiency of the reaction, solubility of the polymer to be produced, etc. From the viewpoint, an ether-based solution of metal t-butoxide is preferably used, and a tetrahydrofuran solution of potassium t-butoxide is more preferably used.

  In the above polymerization reaction, a base solution may be added to the solution of the phosphonate ester compound and the aldehyde compound, a solution of the phosphonate ester compound and the aldehyde compound may be added to the base solution, and may be simultaneously added to the reaction system, There is no restriction on the order of addition.

  The polymerization time in the above polymerization reaction may be appropriately set according to the reactivity of the monomers used or the molecular weight of the desired polymer, but is preferably 0.2 hours to 30 hours.

  The reaction temperature in the above polymerization reaction does not need to be controlled, and the polymerization reaction proceeds well at room temperature. However, it is possible to heat or cool the reaction to a milder condition in order to increase the reaction efficiency.

  It is also possible to add a molecular weight regulator in order to adjust the molecular weight in the above polymerization operation, or a sealing agent for sealing the end of the polymer as a terminal modifying group to the reaction system. It is also possible to add it. Therefore, a substituent based on a terminator may be bonded to the terminal of the arylamine polymer in the present invention.

  Examples of the molecular weight regulator and terminal blocking agent include compounds having one reactive group such as diethyl benzylphosphonate and benzaldehyde.

  The preferred molecular weight of the polymer of the present invention is 1,000 to 1,000,000, more preferably 2000 to 500,000 in terms of polystyrene-reduced number average molecular weight. When the molecular weight is too small, the film forming property such as the generation of cracks is deteriorated and the practicality becomes poor. On the other hand, when the molecular weight is too large, the solubility in a general organic solvent is deteriorated, the viscosity of the solution becomes high and the coating becomes difficult, which also causes a problem in practical use.

  Also, a small amount of a branching agent can be added during the polymerization in order to improve the mechanical properties. The branching agent used is a compound having three or more polymerization reaction active groups (which may be the same or different). These branching agents may be used alone or in combination.

  The arylamine polymer obtained as described above is used after removing impurities such as the base used in the polymerization, unreacted monomer, terminal terminator, and inorganic salts generated during the polymerization. For these purification operations, conventionally known methods such as reprecipitation, extraction, Soxhlet extraction, ultrafiltration, dialysis and the like can be used.

  The polymer of the present invention obtained by the above production method is free from cracks by known film formation methods such as spin coating, casting, dipping, ink jet, doctor blade, screen printing, and spray coating. It is possible to produce a good thin film excellent in strength, toughness, durability and the like, and it can be suitably used as a material for organic EL elements, organic transistor elements and the like.

  Next, the repeating units (I) to (IV) of the polymer of the present invention will be described in more detail.

  In the present invention, the “aromatic hydrocarbon group” is referred to as a general term for a group of compounds having a benzene nucleus.

The substituted or unsubstituted aromatic hydrocarbon group Ar ¹ in the general formula (I) may be a monocyclic group or a polycyclic group (a condensed polycyclic group or a non-condensed polycyclic group). Can be mentioned. Examples thereof include a phenyl group, a naphthyl group, a pyrenyl group, a fluorenyl group, an azulenyl group, an anthryl group, a triphenylenyl group, a chrycenyl group, a biphenyl group, and a terphenyl group. Examples of the divalent groups Ar ² and Ar ³ of the substituted or unsubstituted aromatic hydrocarbon group in the general formula (I) include the divalent groups of the above substituted or unsubstituted aromatic hydrocarbon groups. .

In addition, these groups having a cyclic structure (Ar ¹ , Ar ² , Ar ³ and Ar ⁴ ) may have various substituents as follows.
(1) Halogen atom, trifluoromethyl group, cyano group, nitro group.
(2) A linear or branched alkyl group or alkoxy group having 1 to 25 carbon atoms. These may be further substituted with a halogen atom, a cyano group, a phenyl group, a hydroxyl group, a carboxyl group, an alkoxy group, or an alkylthio group.
(3) Aryloxy group. (Examples include aryloxy groups having a phenyl group or a naphthyl group as the aryl group. These may contain a halogen atom as a substituent, and may be a linear or branched alkyl group or alkoxy having 1 to 25 carbon atoms. A phenoxy group, a 1-naphthyloxy group, a 2-naphthyloxy group, a 4-methylphenoxy group, a 4-methoxyphenoxy group, and a 4-chlorophenoxy group. , 6-methyl-2-naphthyloxy group, etc.)
(4) An alkylthio group or an arylthio group. (Specific examples of the alkylthio group or arylthio group include a methylthio group, an ethylthio group, a phenylthio group, and a p-methylphenylthio group.)
(5) An alkyl-substituted amino group. (Specifically, diethylamino group, N-methyl-N-phenylamino group, N, N-diphenylamino group, N, N-di (p-tolyl) amino group, dibenzylamino group, piperidino group, morpholino group And a urolidyl group.)
(6) Acyl group. (Specific examples of the acyl group include an acetyl group, a propionyl group, a butyryl group, a malonyl group, and a benzoyl group.)
The arylamine polymers (I) to (IV) of the present invention may have a halogen atom, a substituted or unsubstituted alkyl group, an alkoxy group, or an alkylthio group as a substituent on the aromatic ring. From the viewpoint of improving solubility, it is preferable to have a substituted or unsubstituted alkyl group, alkoxy group, or alkylthio group. If the number of carbons of these substituents increases, the solubility will be improved, but on the other hand, the properties such as charge transportability will decrease, so that the desired properties can be obtained within the range where the solubility is not impaired. It is preferred to select a substituent. Examples of suitable substituents in that case include alkyl groups, alkoxy groups and alkylthio groups having 1 to 25 carbon atoms. A plurality of the same substituents may be introduced, or a plurality of different substituents may be introduced. These alkyl groups, alkoxy groups and alkylthio groups are further halogen atoms, cyano groups, aryl groups, hydroxyl groups, carboxyl groups, linear, branched or cyclic alkyl groups having 1 to 12 carbon atoms, alkoxy groups or An aryl group substituted with an alkylthio group may be contained.

  Specific examples of the alkyl group include methyl group, ethyl group, n-propyl group, i-propyl group, t-butyl group, s-butyl group, n-butyl group, i-butyl group, pentyl group, hexyl group, Heptyl, octyl, nonyl, decyl, 3,7-dimethyloctyl, 2-ethylhexyl, trifluoromethyl, 2-cyanoethyl, benzyl, 4-chlorobenzyl, 4-methylbenzyl, A cyclopentyl group, a cyclohexyl group, etc. can be mentioned as an example, As an alkoxy group and an alkylthio group, what made the alkoxy group and the alkylthio group by inserting an oxygen atom or a sulfur atom in the bond position of the said alkyl group is mentioned as an example. .

  The polymer of the present invention has improved solubility in a solvent due to the presence of an alkyl group, an alkoxy group, or an alkylthio group. In these polymers, it is important to improve the solubility in a solvent because the manufacturing tolerance of the wet film-forming process in the production of an organic EL element or an organic transistor element is increased. With improved solubility, for example, the choice of coating solvent, the temperature range during solution preparation, and the temperature range and pressure range during solvent drying can be expanded. In addition, a high-quality thin film with high purity and high uniformity can be obtained.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited by these examples unless it exceeds the gist.

Example 1
Synthesis of polymer 1

１００ｍｌ四つ口フラスコに、上記のジアルデヒド０．８５２ｇ（２．７０ｍｍｏｌ）及びジホスホネート１．５２５ｇ（２．７０ｍｍｏｌ）を入れ、窒素置換してテトラヒドロフラン７５ｍｌを加えた。この溶液にカリウムｔ−ブトキシドの１．０ｍｏｌ ｄｍ^−３テトラヒドロフラン溶液６．７５ｍｌ（６．７５ｍｍｏｌ）を滴下し室温で２時間撹拌した後、ベンジルホスホン酸ジエチル及びベンズアルデヒドを順次加え、さらに２時間撹拌した。酢酸およそ１ｍｌを加えて反応を終了し、溶液を水洗した。溶媒を減圧留去した後テトラヒドロフラン及びメタノールを用いて再沈澱による精製を行ない、重合体１を１．０７ｇ得た。収率７３％。

In a 100 ml four-necked flask, 0.852 g (2.70 mmol) of the dialdehyde and 1.525 g (2.70 mmol) of diphosphonate were placed, and the atmosphere was purged with nitrogen, and 75 ml of tetrahydrofuran was added. To this solution, 6.75 ml (6.75 mmol) of a 1.0 mol dm ^-3 tetrahydrofuran solution of potassium t-butoxide was added dropwise and stirred at room temperature for 2 hours, and then diethyl benzylphosphonate and benzaldehyde were sequentially added, followed by further stirring for 2 hours. . About 1 ml of acetic acid was added to terminate the reaction, and the solution was washed with water. After the solvent was distilled off under reduced pressure, purification by reprecipitation was performed using tetrahydrofuran and methanol to obtain 1.07 g of polymer 1. Yield 73%.

  Elemental analysis value (calculated value); C: 84.25% (84.02%), H: 8.20% (7.93%), N: 2.33% (2.45%).

  The glass transition temperature determined from differential scanning calorimetry was 116.9 ° C.

  The number average molecular weight in terms of polystyrene measured by gel filtration chromatography (GPC) was 8500, and the weight average molecular weight was 20000.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 2
Synthesis of polymer 2

実施例１と同様の操作を行ない、上記ジアルデヒド４１９．５ｍｇ（１．００ｍｍｏｌ）及びジホスホネート５６４．５ｍｇ（１．００ｍｍｏｌ）から重合体２を５１８．３ｍｇ得た。収率６２％。

The same operation as in Example 1 was performed, and 518.3 mg of the polymer 2 was obtained from 419.5 mg (1.00 mmol) of the dialdehyde and 564.5 mg (1.00 mmol) of the diphosphonate. Yield 62%.

  Elemental analysis value (calculated value); C: 85.18% (85.55%), H: 8.03% (7.63%), N: 2.10% (2.08%).

  The glass transition temperature determined from differential scanning calorimetry was 133 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 39200, and the weight average molecular weight was 116000.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 3
Synthesis of polymer 3

実施例１と同様の操作を行ない、上記ジアルデヒド１．００ｇ（２．４０ｍｍｏｌ）及びジホスホネート１．３５ｇ（２．４０ｍｍｏｌ）から重合体３を１．３２ｇ得た。収率８２％。

The same operation as in Example 1 was performed, and 1.32 g of Polymer 3 was obtained from 1.00 g (2.40 mmol) of the dialdehyde and 1.35 g (2.40 mmol) of diphosphonate. Yield 82%.

  Elemental analysis value (calculated value); C: 85.33% (85.55%), H: 7.86% (7.63%), N: 2.30% (2.08%).

  The glass transition temperature determined from differential scanning calorimetry was 151.9 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 44400, and the weight average molecular weight was 118,000.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 4
Synthesis of polymer 4

実施例１と同様の操作を行ない、上記ジアルデヒド１．００ｇ（３．３２ｍｍｏｌ）及びジホスホネート１．８７ｇ（３．３２ｍｍｏｌ）から重合体４を１．３２ｇ得た。収率７１％。

The same operation as in Example 1 was performed to obtain 1.32 g of the polymer 4 from 1.00 g (3.32 mmol) of the dialdehyde and 1.87 g (3.32 mmol) of the diphosphonate. Yield 71%.

  Elemental analysis value (calculated value); C: 83.78% (83.98%), H: 8.02% (7.77%), N: 2.34% (2.51%).

  The glass transition temperature determined from differential scanning calorimetry was 131.6 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 47900, and the weight average molecular weight was 152700.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

  Example 5

２００ｍｌ四つ口フラスコに、上記のジアルデヒド０．８７２ｇ（２．６４８ｍｍｏｌ）及びジホスホネート１．４９５ｇ（２．６４８ｍｍｏｌ）を入れ、窒素置換してテトラヒドロフラン８０ｍｌおよび、ベンズアルデヒド１４．１ｍｇ（０．１３２ｍｍｏｌ）を加えた。この溶液にカリウムｔ−ブトキシドの１．０ｍｏｌ ｄｍ^−３テトラヒドロフラン溶液８．００ｍｌ（８．００ｍｍｏｌ）を滴下し室温で２時間撹拌した後、ベンジルホスホン酸ジエチル６０．５ｍｇ（０．２６５ｍｍｏｌ）を加え、さらに１時間撹拌した。酢酸およそ１ｍｌを加えて反応を終了し、反応溶液を水洗した。溶媒を減圧留去した後テトラヒドロフラン及びメタノールを用いて再沈澱による精製を行ない、重合体５を１．３２８ｇ得た。収率８６％。

In a 200 ml four-necked flask, 0.872 g (2.648 mmol) of the above dialdehyde and 1.495 g (2.648 mmol) of diphosphonate were placed, and the atmosphere was purged with nitrogen to 80 ml of tetrahydrofuran and 14.1 mg (0.132 mmol) of benzaldehyde. Was added. To this solution, 8.00 ml (8.00 mmol) of 1.0 mol dm ^-3 tetrahydrofuran solution of potassium t-butoxide was added dropwise and stirred at room temperature for 2 hours, and then 60.5 mg (0.265 mmol) of diethyl benzylphosphonate was added, The mixture was further stirred for 1 hour. About 1 ml of acetic acid was added to complete the reaction, and the reaction solution was washed with water. After the solvent was distilled off under reduced pressure, purification by reprecipitation was performed using tetrahydrofuran and methanol to obtain 1.328 g of polymer 5. Yield 86%.

  Elemental analysis value (calculated value); C: 83.80% (84.06%), H: 8.60% (8.90%), N: 2.15% (2.39%).

  The glass transition temperature determined from differential scanning calorimetry was 122.1 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 13200, and the weight average molecular weight was 32500.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 6
Synthesis of polymer 6

実施例１と同様の操作を行ない、上記ジアルデヒド１．４６ｇ（３．８０ｍｍｏｌ）及びジホスホネート１．６７ｇ（３．８０ｍｍｏｌ）から重合体６を１．４７ｇ得た。収率７５％。

The same operation as in Example 1 was performed to obtain 1.47 g of the polymer 6 from 1.46 g (3.80 mmol) of the dialdehyde and 1.67 g (3.80 mmol) of the diphosphonate. Yield 75%.

  Elemental analysis value (calculated value); C: 83.94 (83.85%), H: 7.21% (7.23%), N: 2.51% (2.72%).

  The glass transition temperature determined from differential scanning calorimetry was 182.5 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 27900, and the weight average molecular weight was 85,000.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 7
Synthesis of polymer 7

実施例５と同様の操作を行ない、上記ジアルデヒド１．００ｇ（２．４８ｍｍｏｌ）及びジホスホネート１．４０ｇ（２．４８ｍｍｏｌ）から重合体７を０．７４ｇ得た。収率４５％。

The same operation as in Example 5 was performed to obtain 0.74 g of the polymer 7 from 1.00 g (2.48 mmol) of the dialdehyde and 1.40 g (2.48 mmol) of the diphosphonate. Yield 45%.

  Elemental analysis value (calculated value); C: 85.56 (85.27%), H: 8.02% (7.78%), N: 2.01% (2.12%).

  The number average molecular weight in terms of polystyrene measured by GPC was 22700, and the weight average molecular weight was 51900.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 8
Synthesis of polymer 8

実施例５と同様の操作を行ない、上記ジアルデヒド０．８７２ｇ（２．６４８ｍｍｏｌ）及びジホスホネート１．４９５ｇ（２．６４８ｍｍｏｌ）から重合体８を１．４７３ｇ得た。収率９５％。

The same operation as in Example 5 was performed to obtain 1.473 g of the polymer 8 from 0.872 g (2.648 mmol) of the dialdehyde and 1.495 g (2.648 mmol) of the diphosphonate. Yield 95%.

  Elemental analysis value (calculated value); C: 84.25% (84.06%), H: 8.75% (8.90%), N: 2.23% (2.39%).

  The glass transition temperature determined from differential scanning calorimetry was 135.8 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 15400, and the weight average molecular weight was 39900.

  An infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 9
Synthesis of polymer 9

実施例５と同様の操作を行ない、上記ジアルデヒド２．１２ｇ（５．５０ｍｍｏｌ）及びジホスホネート３．１１ｇ（５．５ｍｍｏｌ）から重合体９を３．３０ｇ得た。収率９２％。

The same operation as in Example 5 was performed, and 3.30 g of the polymer 9 was obtained from 2.12 g (5.50 mmol) of the dialdehyde and 3.11 g (5.5 mmol) of the diphosphonate. Yield 92%.

  Elemental analysis value (calculated value); C: 84.45% (84.20%), H: 8.82% (8.64%), N: 2.00% (2.18%).

  The glass transition temperature determined from differential scanning calorimetry was 96.1 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 35600, and the weight average molecular weight was 139700.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 10
Synthesis of polymer 10

３００ｍｌ 四つ口フラスコに、上記のジアルデヒド０．８７２ｇ（２．６５ｍ
ｍｏｌ）及びジホスホネート１．００２ｇ（２．６５ｍｍｏｌ）、ベンズアルデ
ヒド２８．１ｍｇ（０．２６５ｍｍｏｌ）を入れ、窒素置換してテトラヒドロフ
ラン２００ｍｌを加えた。この溶液にカリウムｔ−ブトキシドの１．０ｍｏｌ ｄｍ^−３テトラヒドロフラン溶液８ｍｌ（８ｍｍｏｌ）を滴下し室温で３０分撹拌した後、１．５時間還流した。ベンジルホスホン酸ジエチル６０．５ｍｇ（０．２６５ｍｍｏｌ）を加え、さらに１時間還流した。放冷した後、酢酸およそ１ｍｌを加えて反応を終了し、反応溶液を水およそ７００ｍｌ中に滴下し、吸引濾過して重合体１０を０．８３ｇ得た。収率７９％。

In a 300 ml four-necked flask, 0.872 g (2.65 m) of the above dialdehyde.
mol) and 1.002 g (2.65 mmol) of diphosphonate and 28.1 mg (0.265 mmol) of benzaldehyde were added, and the atmosphere was replaced with nitrogen, and 200 ml of tetrahydrofuran was added. To this solution, 8 ml (8 mmol) of a 1.0 mol dm ^-3 tetrahydrofuran solution of potassium t-butoxide was added dropwise and stirred at room temperature for 30 minutes, and then refluxed for 1.5 hours. 60.5 mg (0.265 mmol) of diethyl benzylphosphonate was added, and the mixture was further refluxed for 1 hour. After allowing to cool, about 1 ml of acetic acid was added to complete the reaction, and the reaction solution was dropped into about 700 ml of water and suction filtered to obtain 0.83 g of polymer 10. Yield 79%.

  Elemental analysis value (calculated value); C: 92.95% (90.19%), H: 6.01% (6.31%), N: 3.62% (3.51%).

  The number average molecular weight in terms of polystyrene measured by GPC was 2560, and the weight average molecular weight was 4680.

Example 11
Synthesis of polymer 11

実施例５と同様の操作を行ない、上記ジアルデヒド２．１２ｇ（５．５０ｍｍｏｌ）及びジホスホネート２．６３ｇ（５．５０ｍｍｏｌ）から重合体１１を２．７２ｇ得た。収率８９％。

The same operation as in Example 5 was performed to obtain 2.72 g of the polymer 11 from 2.12 g (5.50 mmol) of the dialdehyde and 2.63 g (5.50 mmol) of the diphosphonate. Yield 89%.

  Elemental analysis value (calculated value); C: 90.89% (90.77%), H: 6.50% (6.71%), N: 2.22% (2.52%).

  The number average molecular weight in terms of polystyrene measured by GPC was 3700, and the weight average molecular weight was 8,000.

  An infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 12
Synthesis of polymer 12

実施例５と同様の操作を行ない、上記ジアルデヒド２．１２ｇ（５．５０ｍｍｏｌ）及びジホスホネート２．５０ｇ（５．５０ｍｍｏｌ）から重合体１２を２．３４ｇ得た。収率８０％。

The same operation as in Example 5 was performed to obtain 2.34 g of the polymer 12 from 2.12 g (5.50 mmol) of the dialdehyde and 2.50 g (5.50 mmol) of the diphosphonate. Yield 80%.

  Elemental analysis value (calculated value); C: 90.64% (90.35%), H: 6.82% (7.01%), N: 2.55% (2.63%).

  The number average molecular weight in terms of polystyrene measured by GPC was 5,500, and the weight average molecular weight was 13,300.

  The infrared absorption spectrum (KBr) is shown in FIG.

Example 13
Synthesis of polymer 13

２００ｍｌ四つ口フラスコに、上記のジアルデヒド０．８３５ｇ（２．６４８ｍｍｏｌ）及びジホスホネート１．２４１ｇ（２．６４８ｍｍｏｌ）を入れ、窒素置換してテトラヒドロフラン８０ｍｌおよび、ベンズアルデヒド１４．１ｍｇ（０．１３２ｍｍｏｌ）を加えた。この溶液にカリウムｔ−ブトキシドの１．０ｍｏｌ ｄｍ^−３テトラヒドロフラン溶液８．００ｍｌ（８．００ｍｍｏｌ）を滴下し室温で０．５時間撹拌した後、３時間還流した。ベンジルホスホン酸ジエチル６０．５ｍｇ（０．２６５ｍｍｏｌ）を加え、さらに１時間還流した。放冷した後、酢酸およそ数滴を加えて反応を終了し、反応溶液を水に滴下した。析出した固体を濾別した後、この固体をテトラヒドロフラン及びメタノールを用いて再沈澱により精製し、重合体１３を０．８３ｇ得た。収率６６％。

A 200 ml four-necked flask was charged with 0.835 g (2.648 mmol) of the dialdehyde and 1.241 g (2.648 mmol) of diphosphonate, and purged with nitrogen to 80 ml of tetrahydrofuran and 14.1 mg (0.132 mmol) of benzaldehyde. Was added. To this solution, 8.00 ml (8.00 mmol) of a 1.0 mol dm ^-3 tetrahydrofuran solution of potassium t-butoxide was added dropwise and stirred at room temperature for 0.5 hours, and then refluxed for 3 hours. 60.5 mg (0.265 mmol) of diethyl benzylphosphonate was added, and the mixture was further refluxed for 1 hour. After allowing to cool, about a few drops of acetic acid were added to terminate the reaction, and the reaction solution was added dropwise to water. The precipitated solid was filtered off and purified by reprecipitation using tetrahydrofuran and methanol to obtain 0.83 g of polymer 13. Yield 66%.

  Elemental analysis value (calculated value); C: 83.01% (83.32%), H: 7.01% (6.99%), N: 2.89% (2.94%), S: 6 80% (6.76%).

  The glass transition temperature determined from differential scanning calorimetry was 163.4 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 7900, and the weight average molecular weight was 17,200.

  An infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 14
Synthesis of polymer 14

実施例１３と同様の操作を行ない、上記ジアルデヒド１．０２１ｇ（２．６４８ｍｍｏｌ）及びジホスホネート１．２４１ｇ（２．６４８ｍｍｏｌ）から重合体１４を０．９１８ｇ得た。収率６２％。

The same operation as in Example 13 was performed, and 0.918 g of the polymer 14 was obtained from 1.021 g (2.648 mmol) of the dialdehyde and 1.241 g (2.648 mmol) of the diphosphonate. Yield 62%.

  Elemental analysis value (calculated value); C: 83.55% (83.62%), H: 7.74% (7.94%), N: 2.63% (2.57%), S: 6 0.02% (5.87%).

  The glass transition temperature determined from differential scanning calorimetry was 125.9 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 15500, and the weight average molecular weight was 48700.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 15
Synthesis of polymer 15

実施例１３と同様の操作を行ない、上記ジアルデヒド１．１０６ｇ（２．６４８ｍｍｏｌ）及びジホスホネート１．２４１ｇ（２．６４８ｍｍｏｌ）から重合体１５を０．８１７ｇ得た。収率５３％。

The same operation as in Example 13 was performed, and 0.817 g of the polymer 15 was obtained from 1.106 g (2.648 mmol) of the dialdehyde and 1.241 g (2.648 mmol) of the diphosphonate. Yield 53%.

  Elemental analysis value (calculated value); C: 85.52% (85.22%), H: 7.00% (6.80%), N: 2.15% (2.42%), S: 5 .50% (5.55%).

  The glass transition temperature determined from differential scanning calorimetry was 186.9 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 11800, and the weight average molecular weight was 28400.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 16
Synthesis of polymer 16

実施例１３と同様の操作を行ない、上記ジアルデヒド１．１１１ｇ（２．６４８ｍｍｏｌ）及びジホスホネート１．２４１ｇ（２．６４８ｍｍｏｌ）から重合体１６を１．３９ｇ得た。収率９１％。

The same operation as in Example 13 was performed to obtain 1.39 g of the polymer 16 from 1.111 g (2.648 mmol) of the dialdehyde and 1.241 g (2.648 mmol) of the diphosphonate. Yield 91%.

  Elemental analysis value (calculated value); C: 84.62% (84.93%), H: 7.01% (7.13%), N: 2.76% (2.42%), S: 5 69% (5.53%).

  The glass transition temperature obtained from differential scanning calorimetry was 166.4 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 8300, and the weight average molecular weight was 19,900.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

  Example 17

重合体１７ の合成
実施例５と同様の操作を行ない、上記ジアルデヒド０.８３７ｇ （２ ．６５５ｍｍｏｌ ）及びジホスホネート１.６８５ｇ （２ ．６５５ｍｍｏｌ ）から重合体１７ を１.３８６ｇ 得た。収率８１ ％。

Synthesis of Polymer 17 The same operation as in Example 5 was performed to obtain 1.386 g of Polymer 17 from 0.837 g (2.655 mmol) of the dialdehyde and 1.685 g (2.655 mmol) of diphosphonate. Yield 81%.

  Elemental analysis value (calculated value); C: 90.11 (89.81%), H: 7. 92% (8.01%), N: 2. 01% (2.18%).

  The glass transition temperature determined from differential scanning calorimetry is 182. 9 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 14400, and the weight average molecular weight was 42600.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 18
Synthesis of polymer 18

実施例５ と同様の操作を行ない、上記ジアルデヒド１.１０６ｇ （２.６４８ｍｍｏｌ ）及びジホスホネート１.６８１ｇ （２.６４８ｍｍｏｌ ）から重合体１８を１.６８２ｇ 得た。収率８５％。
元素分析値（計算値）；Ｃ ：９０ ．６８ （９０ ．４０ ％）、Ｈ ：７ ．４８ ％（７ ．７２％）、Ｎ ：１ ．９１ ％（１ ．８８ ％）。
示差走査熱量測定から求めたガラス転移温度は１９４ ．６ ℃であった。
ＧＰＣ により測定したポリスチレン換算の数平均分子量は１７３００ 、重量平均分子量は５６０００ であった。

The same operation as in Example 5 was performed to obtain 1.682 g of polymer 18 from 1.106 g (2.648 mmol) of the dialdehyde and 1.681 g (2.648 mmol) of diphosphonate. Yield 85%.
Elemental analysis value (calculated value); C: 90. 68 (90.40%), H: 7. 48% (7.72%), N: 1. 91% (1.88%).
The glass transition temperature determined from differential scanning calorimetry is 194. 6 ° C.
The number average molecular weight in terms of polystyrene measured by GPC was 17300, and the weight average molecular weight was 56000.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 19
Synthesis of polymer 19

実施例５ と同様の操作を行ない、上記ジアルデヒド０.９７７ｇ （２.５３４ｍｍｏｌ ）及びジホスホネート１.６０９ｇ （２.５３４ｍｍｏｌ ）から重合体１９ を１.５８０ｇ 得た。収率８８％。

The same operation as in Example 5 was performed to obtain 1.580 g of the polymer 19 from 0.977 g (2.534 mmol) of the dialdehyde and 1.609 g (2.534 mmol) of the diphosphonate. Yield 88%.

  Elemental analysis value (calculated value); C: 89. 70 (89.40%), H: 8. 44% (8.63%), N: 2. 01% (1.97%).

  The glass transition temperature determined from differential scanning calorimetry is 142. It was 4 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 11600, and the weight average molecular weight was 31900.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

Example 20
Synthesis of polymer 20

実施例５ と同様の操作を行ない、上記ジアルデヒド０.５７８ｇ （１．５０ｍｍｏｌ ）及びジホスホネート０．５６７ｇ （１．５０ｍｍｏｌ ）から重合体２０ を０．６３ｇ 得た。収率９０％。

The same operation as in Example 5 was performed to obtain 0.63 g of the polymer 20 from 0.578 g (1.50 mmol) of the dialdehyde and 0.567 g (1.50 mmol) of the diphosphonate. Yield 90%.

  Elemental analysis value (calculated value); C: 89. 75 (89.89%), H: 7.02% (7.11%), N: 3.13% (3.00%).

  The glass transition temperature determined from differential scanning calorimetry is 181. 0 ° C.

  The number average molecular weight in terms of polystyrene measured by GPC was 11500, and the weight average molecular weight was 37400.

  The infrared absorption spectrum (NaCl cast film) is shown in FIG.

The infrared absorption spectrum figure of the polymer obtained in Example 1. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 2. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 3. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 4. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 5. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 6. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 7. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 8. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 9. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 10. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 11. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 12. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 13. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 14. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 15. The infrared absorption spectrum figure of the polymer obtained in Example 16. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 17. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 18. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 19. FIG. The infrared absorption spectrum figure of the polymer obtained in Example 20. FIG.

Claims (4)

The following general formula (I)

Having repeating units represented by:
Ar ¹ is a substituted or unsubstituted aromatic hydrocarbon group;
Ar ² and Ar ³ are each independently a divalent group of a substituted or unsubstituted aromatic hydrocarbon group; and Ar ⁴ is a substituted or unsubstituted divalent group of benzene, thiophene, biphenyl, fluorene or anthracene. is there;
A polymer characterized by the above. The following general formula (II)

Having repeating units represented by:
Ar ¹ is a substituted or unsubstituted aromatic hydrocarbon group;
Ar ⁴ is a substituted or unsubstituted divalent group of benzene, thiophene, biphenyl, fluorene or anthracene;
x and y are integers of 1 or more and 4 or less;
R ¹ and R ² are each independently a hydrogen group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkylthio group; and x and / or y When R is 2 or more, a plurality of R ¹ and R ² are independent from each other;
A polymer characterized by the above. The following general formula (III)

Having repeating units represented by:
Ar ⁴ is a substituted or unsubstituted divalent group of benzene, thiophene, biphenyl, fluorene or anthracene;
x and y are integers of 1 or more and 4 or less;
z is an integer from 1 to 5;
R ¹ and R ² are each independently a hydrogen group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkylthio group;
R ³ is a hydrogen group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkylthio group or a substituted or unsubstituted aryl group; and x, y and When z is 2 or more, the plurality of R ¹ , R ² and R ³ are independent from each other;
A polymer characterized by the above. The following general formula (IV)

Having repeating units represented by:
Ar ⁴ is a substituted or unsubstituted divalent group of benzene, thiophene, biphenyl, fluorene or anthracene;
v is an integer of 1 to 3,
w, x and y are integers of 1 or more and 4 or less;
R ¹ , R ² , R ⁴ , R ⁵ , R ⁶ and R ⁷ are each independently a hydrogen group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkylthio group. And when v, w, x and y are 2 or more, a plurality of R ¹ , R ² , R ⁴ and R ⁵ are independent from each other;
A polymer characterized by the above.

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