JPS6392619A - O-(trialkylsilyl)phenylacetylene polymer and its production - Google Patents

O-(trialkylsilyl)phenylacetylene polymer and its production

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Publication number
JPS6392619A
JPS6392619A JP23842186A JP23842186A JPS6392619A JP S6392619 A JPS6392619 A JP S6392619A JP 23842186 A JP23842186 A JP 23842186A JP 23842186 A JP23842186 A JP 23842186A JP S6392619 A JPS6392619 A JP S6392619A
Authority
JP
Japan
Prior art keywords
phenylacetylene
trialkylsilyl
polymer
group
transition metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP23842186A
Other languages
Japanese (ja)
Other versions
JPH0610216B2 (en
Inventor
Toshinobu Higashimura
東村 敏延
Toshio Masuda
俊夫 増田
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP23842186A priority Critical patent/JPH0610216B2/en
Publication of JPS6392619A publication Critical patent/JPS6392619A/en
Publication of JPH0610216B2 publication Critical patent/JPH0610216B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To obtain the title organic solvent-soluble membrane-forming polymer suitable as, e.g., a material for gas separation membranes in high yields, by polymerizing an o-(trialkylsilyl)phenylacetylene in the presence of a Group VI transition metal compound. CONSTITUTION:An o-(trialkylsilyl)phenylacetylene of formula I (wherein R<1>, R<2> and R<3> are each a lower alkyl) is polymerized in the presence of a Group VI transition metal compound (e.g., tungsten hexachloride or molybdenum pentachloride). In this way, an o-(trialkylsilyl)phenylacetylene polymer of formula II (wherein n is the number of repeating units) can be obtained. By using a combination of a Group VI transition metal compound catalyst with a reducing agent (e.g., tetraphenyltin or triphenylsilane), the catalysis of the Group VI transition metal compound can be promoted further, and a polymer of a higher molecular weight can be obtained.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、気体分離膜材料、電気・電子材料等アル〜 として有用である新規な0−(トリ→ルシリル)フェニ
ルアセチレン重合体およびその製法に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a novel 0-(tri→rusilyl)phenylacetylene polymer useful as a material for gas separation membranes, electrical/electronic materials, etc., and a method for producing the same. Regarding.

〔従来の技術〕[Conventional technology]

従来、−置換フェニルアセチレン誘導体の重合体として
は、例えば、フェニルアセチレン重合体、0−メチルフ
ェニルアセチレン重合体などが知られている(Poly
mer Preprints+ Japar++ 35
+ 228(1986))が、分子量が数万〜十数万と
小さいため膜などへの成形加工が困難であり、得られる
膜は熱安定性および機械的強度が低いという問題点を存
している。
Conventionally, as polymers of -substituted phenylacetylene derivatives, for example, phenylacetylene polymers, 0-methylphenylacetylene polymers, etc. are known (Poly
mer Preprints+ Japar++ 35
+228 (1986)), but because the molecular weight is small, ranging from tens of thousands to hundreds of thousands, it is difficult to form into films, etc., and the resulting films have the problem of low thermal stability and mechanical strength. There is.

そこで、本発明の目的は、分子量が高く、有機溶媒に可
溶性であり、製膜性等の成形加工性に優れ、熱安定性、
機械的強度の高い膜を作製できる一i換フェニルアセチ
レン重合体を提供することにあり、さらに別の目的は、
このような重合体を比較的短時間で重合でき、かつ高収
率で製造することができる製法を提供することにある。
Therefore, the object of the present invention is to have a high molecular weight, soluble in organic solvents, excellent molding processability such as film forming property, thermal stability,
Another object of the present invention is to provide a monovalent phenylacetylene polymer capable of producing a membrane with high mechanical strength.
The object of the present invention is to provide a manufacturing method that can polymerize such a polymer in a relatively short time and at a high yield.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は前記の問題点を解決するものとして、一般式(
1) 〔式中、R1,R1およびR3は、同一でも異なっても
よく、低級アルキル基を表わし、nは繰返し単位の繰返
し数を表わす整数である。〕 で表わされる0 −()リアルキルシリル)フェニルア
セチレン重合体を提供するものである。
The present invention solves the above-mentioned problems by the general formula (
1) [In the formula, R1, R1 and R3 may be the same or different and represent a lower alkyl group, and n is an integer representing the number of repeating units. ] An 0-()alkylsilyl)phenylacetylene polymer represented by the following is provided.

また、本発明は、一般式(n) 〔式中、R1,RZおよびR3は前記に定義のとおりで
ある〕 で表わされるo−(トリアルキルシリル)フェニルアセ
チレンを、第■族遷移金属化合物の存在下で重合させる
ことからなる前記一般式(I)で表わされる〇−(トリ
アルキルシリル)フェニルアセチレン重合体の製法を提
供するものである。
Further, the present invention provides o-(trialkylsilyl)phenylacetylene represented by the general formula (n) [wherein R1, RZ and R3 are as defined above] as a Group I transition metal compound. The present invention provides a method for producing a 〇-(trialkylsilyl)phenylacetylene polymer represented by the general formula (I), which comprises polymerizing in the presence of the above-mentioned general formula (I).

前記の一般式(1)および(II)において、RIR2
およびR3が表わす低級アルキル基としては、例えば、
メチル、エチル、プロピル等が挙げられる。
In the above general formulas (1) and (II), RIR2
The lower alkyl group represented by R3 is, for example,
Examples include methyl, ethyl, propyl and the like.

本発明の重合体の製法に用いられる第■族遷移金属とし
ては、クロム、モリブデンおよびタングステンが挙げら
れ、触媒として使用される第■族遷移金属化合物の具体
例としては、五塩化モリブデン(MoC1,) 、六塩
化タングステン等の塩化物;クロムカルボニル、モリ゛
ブデンカルポニルおよびタングステンカルボニルの金属
カルボニルとを機ハロゲン化物、例えば四塩化炭素、ト
リクロロ酢酸エチル等との混合物に紫外線などの光照射
して得られる物質等を挙げることができる。これらの触
媒は、単量体である0−(トリアルキルシリル)フェニ
ルアセチレン100モルに対し0.2〜5モルの範囲で
使用するのが適当である。
Examples of Group Ⅰ transition metals used in the method for producing the polymer of the present invention include chromium, molybdenum, and tungsten. Specific examples of Group Ⅰ transition metal compounds used as catalysts include molybdenum pentachloride (MoC1, ), chlorides such as tungsten hexachloride; metal carbonyls such as chromium carbonyl, molybdenum carbonyl, and tungsten carbonyl are obtained by irradiating a mixture of halides such as carbon tetrachloride, ethyl trichloroacetate, etc. with light such as ultraviolet rays. Examples include substances that can be used. These catalysts are suitably used in an amount of 0.2 to 5 moles per 100 moles of the monomer 0-(trialkylsilyl)phenylacetylene.

また、本発明の製法では、上記の第■族遷移金属化合物
に還元剤を併用することが好ましく、還元剤を併用する
ことにより前記触媒の作用を助長することができ、より
高分子量の重合体を得るのに有利である。使用すること
ができる還元剤としては、例えばテトラフェニルスズ、
テトラn−ブチルスズ、トリフェニルシラン、トリエチ
ルシラン、トリフェニルアンチモン、トリフェニルビス
マス等の有機金属化合物および金属水素化物などを挙げ
ることができる。この還元剤の使用量は、前記の第■族
遷移金属化合物1モルに対し0.3〜3モルの範囲が好
ましい。
In addition, in the production method of the present invention, it is preferable to use a reducing agent in combination with the above-mentioned Group Ⅰ transition metal compound, and by using the reducing agent in combination, the action of the catalyst can be promoted, and a polymer with a higher molecular weight can be produced. It is advantageous to obtain Reducing agents that can be used include, for example, tetraphenyltin,
Examples include organometallic compounds and metal hydrides such as tetra-n-butyltin, triphenylsilane, triethylsilane, triphenylantimony, and triphenylbismuth. The amount of this reducing agent used is preferably in the range of 0.3 to 3 moles per mole of the Group I transition metal compound.

本発明の製法における重合反応は、通常、有機溶媒中で
行なわれる。有機溶媒としては、ヘンゼン、トルエン等
の炭化水素;四塩化炭素等のハロゲン化炭化水素等が挙
げられる。
The polymerization reaction in the production method of the present invention is usually carried out in an organic solvent. Examples of the organic solvent include hydrocarbons such as Hensen and toluene; halogenated hydrocarbons such as carbon tetrachloride.

重合反応においては、単量体である0−(トリアルキル
シリル)フェニルアセチレンの濃度は0.1〜5モル/
iの範囲が好ましく、反応温度は一5〜80℃が好まし
いが、得られる重合体の分子量と収率が向上する点で特
に、0〜40″Cが好ましい。反応時間は、通常数十分
〜数十時間である。
In the polymerization reaction, the concentration of the monomer 0-(trialkylsilyl)phenylacetylene is 0.1 to 5 mol/
A range of i is preferable, and the reaction temperature is preferably -5 to 80 degrees Celsius, but 0 to 40 degrees Celsius is particularly preferable in terms of improving the molecular weight and yield of the obtained polymer.The reaction time is usually several tens of minutes. ~ several dozen hours.

上記の重合反応により、−i式(I)で表わされる重合
体を含む反応混合物が得られるが、該反応混合物を反応
に用いた有機溶媒で希釈した後大量のメタノールの中に
投入することにより、生成重合体が沈殿するので濾別に
より回収することができる。
Through the above polymerization reaction, a reaction mixture containing the polymer represented by the -i formula (I) is obtained, but by diluting the reaction mixture with the organic solvent used in the reaction and then pouring it into a large amount of methanol. , the produced polymer precipitates and can be recovered by filtration.

こうして得られる一般式<1)の0−(トリアルキルシ
リル)フェニルアセチレン重合体は、通常、一般式(I
)におけるnがおよそ100〜20.000であり、分
子量がto、000〜3,000,000程度である。
The 0-(trialkylsilyl)phenylacetylene polymer of the general formula <1) thus obtained is usually the general formula (I
) is about 100 to 20,000, and the molecular weight is about 000 to 3,000,000.

〔実施例〕 次に本発明を実施例により具体的に説明する。〔Example〕 Next, the present invention will be specifically explained using examples.

実施例1 乾燥窒素雰囲気下で充分精製したトルエン11!中に六
塩化タングステン10ミリモルを加え、溶解し、次にo
−(トリメチルシリル)フェニルアセチレン1.0モル
を添加し、30℃で24時間重合させた。得られた反応
混合物を過剰のメタノール中に投入して生成重合体を沈
殿させ、濾別、乾燥した。
Example 1 Toluene 11 sufficiently purified under a dry nitrogen atmosphere! Add 10 mmol of tungsten hexachloride into the solution, dissolve, and then o
1.0 mol of -(trimethylsilyl)phenylacetylene was added and polymerized at 30°C for 24 hours. The resulting reaction mixture was poured into excess methanol to precipitate the produced polymer, which was filtered and dried.

メタノール不溶性重合体の収率は、単量体の仕込量に対
し91%であり、得られた重合体の分子量をゲルパーミ
ェーションクロマトグラフィーで測定したところ、ポリ
スチレン換算での重量平均分子量が150万であった。
The yield of the methanol-insoluble polymer was 91% based on the amount of monomer charged, and when the molecular weight of the obtained polymer was measured by gel permeation chromatography, the weight average molecular weight in terms of polystyrene was It was 1.5 million.

なお、得られた重合体は黒紫色であり、電気伝導度は4
 Xl0−”57cm、  120℃で20時間空気中
で加熱した時の熱安定性は、α=2.0 Xl0−’ 
(なお、α=(1/U下下’I −(1/丁r丁コ)、
■丁丁コおよびコ1はそれぞれ加熱前と後における重合
体の数平均重合度である)であった。
The obtained polymer has a blackish-purple color and an electrical conductivity of 4.
Xl0-'57cm, thermal stability when heated in air at 120℃ for 20 hours is α=2.0 Xl0-'
(In addition, α=(1/U下下'I -(1/Ding r Ding),
(2) ding ding ko and ko 1 are the number average degree of polymerization of the polymer before and after heating, respectively).

生成重合体をトルエンに溶解し、濾過後平滑面上に流延
し、乾燥させることにより丈夫な膜を得た。得られた膜
の気体透過性を測定したところ、酸素透過係数はP O
x =8.9 Xl0−’cn(STP)  ・cm/
ad・3e(−cmHgであり、酸素と窒素の透過係数
比はP oz / P nz=3.3であった。
The resulting polymer was dissolved in toluene, filtered, cast on a smooth surface, and dried to obtain a strong membrane. When the gas permeability of the obtained membrane was measured, the oxygen permeability coefficient was P O
x = 8.9 Xl0-'cn(STP) ・cm/
ad·3e (-cmHg), and the permeability coefficient ratio of oxygen and nitrogen was Poz/Pnz=3.3.

得られた重合体の赤外吸収スペクトルを第1図に示す。The infrared absorption spectrum of the obtained polymer is shown in FIG.

次の吸収がみられた。The following absorption was observed.

3050、1465 (am−’) =・CH= Cに
基づく吸収、1245、835.750 (cm−’)
 =−Si(CHt)sに基づく吸収、 720 (cm−’)・・・ベンゼン環に基づく吸収。
3050, 1465 (am-') =・CH= Absorption based on C, 1245, 835.750 (cm-')
= Absorption based on -Si(CHt)s, 720 (cm-')...Absorption based on benzene ring.

また、得られた重合体の元素分析の結果は、次のとおり
であった。
Further, the results of elemental analysis of the obtained polymer were as follows.

計算値: (CzH+4Si)、としてH: 8.10
%、C: 75.79%、Si: 16.11% 実測値:H:8.03%、C: 75.94%、si 
: 16.03% 実施例2〜10 実施例1において、六塩化タングステンの代りに第1表
に示す触媒を用いたほかに、実施例2〜7および10に
おいては第1表に示す還元剤を10ミリモル使用し、ま
た実施例8においては溶媒としてトルエンの代りに四塩
化炭素を11用いた以外は、実施例1と同様にしてo−
(トリメチルシリル)フェニルアセチレンの重合を行な
った。
Calculated value: (CzH+4Si), H: 8.10
%, C: 75.79%, Si: 16.11% Actual value: H: 8.03%, C: 75.94%, si
: 16.03% Examples 2 to 10 In Example 1, the catalyst shown in Table 1 was used instead of tungsten hexachloride, and in Examples 2 to 7 and 10, the reducing agent shown in Table 1 was used. o-
(Trimethylsilyl)phenylacetylene was polymerized.

得られた重合体の収率とポリスチレン換算の重量平均分
子量を第1表に示す。
Table 1 shows the yield of the obtained polymer and the weight average molecular weight in terms of polystyrene.

第  1  表 φυ *−(■)6と四塩(?J心盪容夜に光を照射し
て得られた物質。
Table 1 Substances obtained by irradiating light on φυ *-(■) 6 and 4 salts (?J).

〔発明の効果〕 本発明の新規重合体は、10,000以上の高い分子量
を有するもので、しかも有機溶媒に可溶性であるため、
製膜性等の成形加工性に優れている。該重合体は高い気
体透過性を有し、成形体の機械的強度が大きいので、気
体透過性膜、特に例えば空気から酸素を分離するなどの
気体分離膜として有用である。またこの重合体は耐熱安
定性に優れており、高温下に置かれる場所においても使
用することができる。さらに、本発明の重合体は、その
まま絶縁材料として、またドーパントを加えて導電材料
として、種々の用途に電気、電子材料としても有用であ
る。
[Effects of the Invention] The novel polymer of the present invention has a high molecular weight of 10,000 or more and is soluble in organic solvents.
Excellent formability such as film forming properties. Since the polymer has high gas permeability and the mechanical strength of the molded product is high, it is useful as a gas permeable membrane, particularly as a gas separation membrane, for example, for separating oxygen from air. Furthermore, this polymer has excellent heat resistance stability and can be used even in places exposed to high temperatures. Furthermore, the polymer of the present invention is useful as an insulating material as it is, or as a conductive material with the addition of a dopant, and as an electrical and electronic material for various uses.

また、本発明の重合体の製法によると、かかる有用な新
規重合体を比較的短い重合時間で高収率で得ることがで
きる。
Moreover, according to the method for producing a polymer of the present invention, such a useful new polymer can be obtained in a high yield in a relatively short polymerization time.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、実施例1で得られたo−(トリメチルシリル
)フェニルアセチレン重合体の赤外吸収スペクトルを表
わす。
FIG. 1 shows an infrared absorption spectrum of the o-(trimethylsilyl)phenylacetylene polymer obtained in Example 1.

Claims (1)

【特許請求の範囲】 1)一般式( I ) ▲数式、化学式、表等があります▼( I ) 〔式中、R^1、R^2およびR^3は、同一でも異な
ってもよく、低級アルキル基を表わし、nは繰返し単位
の繰返し数を表わす整数である。〕 で表わされるo−(トリアルキルシリル)フェニルアセ
チレン重合体。 2)一般式 ▲数式、化学式、表等があります▼ 〔式中、R^1、R^2およびR^3は前記に定義のと
おりである〕 で表わされるo−(トリアルキルシリル)フェニルアセ
チレンを、第VI族遷移金属化合物の存在下で重合させる
ことからなる前記一般式( I )で表わされるo−(ト
リアルキルシリル)フェニルアセチレン重合体の製法。 3)特許請求の範囲第2項記載の製法であって、前記の
重合を、さらに還元剤の存在下において行なう製法。
[Claims] 1) General formula (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (I) [In the formula, R^1, R^2 and R^3 may be the same or different, It represents a lower alkyl group, and n is an integer representing the number of repeating units. ] An o-(trialkylsilyl)phenylacetylene polymer represented by: 2) o-(trialkylsilyl)phenylacetylene represented by the general formula ▲ Numerical formulas, chemical formulas, tables, etc. ▼ [In the formula, R^1, R^2 and R^3 are as defined above] A method for producing an o-(trialkylsilyl)phenylacetylene polymer represented by the general formula (I), which comprises polymerizing in the presence of a Group VI transition metal compound. 3) The manufacturing method according to claim 2, wherein the above polymerization is further carried out in the presence of a reducing agent.
JP23842186A 1986-10-07 1986-10-07 0- (trialkylsilyl) phenylacetylene polymer and process for producing the same Expired - Fee Related JPH0610216B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23842186A JPH0610216B2 (en) 1986-10-07 1986-10-07 0- (trialkylsilyl) phenylacetylene polymer and process for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23842186A JPH0610216B2 (en) 1986-10-07 1986-10-07 0- (trialkylsilyl) phenylacetylene polymer and process for producing the same

Publications (2)

Publication Number Publication Date
JPS6392619A true JPS6392619A (en) 1988-04-23
JPH0610216B2 JPH0610216B2 (en) 1994-02-09

Family

ID=17029957

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JPH0610216B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02102289A (en) * 1988-10-11 1990-04-13 Sekisui Chem Co Ltd Electrochromic element
JPH02296890A (en) * 1989-05-10 1990-12-07 Sekisui Chem Co Ltd Eletrochromic element
US7977441B2 (en) 2005-11-25 2011-07-12 National Institute Of Advanced Industrial Science And Technology Acetylene-based polymer
CN102604104A (en) * 2012-02-29 2012-07-25 山东大学 Preparation method of high-temperature-resistant silicon resin containing phenylethynyl group

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02102289A (en) * 1988-10-11 1990-04-13 Sekisui Chem Co Ltd Electrochromic element
JPH02296890A (en) * 1989-05-10 1990-12-07 Sekisui Chem Co Ltd Eletrochromic element
US7977441B2 (en) 2005-11-25 2011-07-12 National Institute Of Advanced Industrial Science And Technology Acetylene-based polymer
CN102604104A (en) * 2012-02-29 2012-07-25 山东大学 Preparation method of high-temperature-resistant silicon resin containing phenylethynyl group

Also Published As

Publication number Publication date
JPH0610216B2 (en) 1994-02-09

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