JPS6135824A - Gas permeable membrane - Google Patents

Gas permeable membrane

Info

Publication number
JPS6135824A
JPS6135824A JP59157831A JP15783184A JPS6135824A JP S6135824 A JPS6135824 A JP S6135824A JP 59157831 A JP59157831 A JP 59157831A JP 15783184 A JP15783184 A JP 15783184A JP S6135824 A JPS6135824 A JP S6135824A
Authority
JP
Japan
Prior art keywords
group
oxygen
permeable membrane
gas permeable
perfluoride
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
JP59157831A
Other languages
Japanese (ja)
Other versions
JPH0365223B2 (en
Inventor
Shiro Asakawa
浅川 史朗
Yukihiro Saito
斉藤 幸廣
Midori Kawahito
川人 美登利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59157831A priority Critical patent/JPS6135824A/en
Publication of JPS6135824A publication Critical patent/JPS6135824A/en
Publication of JPH0365223B2 publication Critical patent/JPH0365223B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/44Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE:To impart extremely excellent gas permeability, in a gas permeable membrane for concentrating and separating oxygen, by adding perfluoride to substituted polyacetylene. CONSTITUTION:Either one of or both of 1-substituted polyacetylene and 1, 2-substituted polyacetylene, each of which has an atom or group selected from a group comprising a halogen atom, an alkyl group, a halogenated alkyl group, a phenyl group and an organosilyl group as a substituernt is used as a base material and perfluoride such as highly fluorinated hydrocarbon or alcohol is added thereto to form a membrane. The addition amount of fluoride is pref. 1-80%. If fluoride having high oxygen solubility is used, a gas permeable membrane excellent in oxygen permeability and having large oxygen permselectively is obtained.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は空気から酸素を濃縮分離する場合に特に好適な
気体透過膜に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a gas permeable membrane particularly suitable for concentrating and separating oxygen from air.

従来例の構成とその問題点 近年、低濃度酸素、すなわち含有酸素濃度が21チ以上
40チ程度のいわゆる酸素富化空気の利用技術の開発が
盛に行なわれている。これらの酸素富化空気は、燃焼シ
ステムに於ける省エネルギー化、あるいは医療分野にお
ける酸素療法、その他汚泥処理、化学工業における酸化
プロセスでの利用などさまざまな用途が期待されている
。この酸素富化空気の製造法に関しては、経済性、安全
性、取扱いの容易さなどから、いわゆる気体透過膜によ
る膜分離法が脚光を浴びている。気体の分離濃縮におい
て、用いられる気体透過膜に対し要求される性能のポイ
ントは、目的とする気体の透過係数、及び他の気体との
分離における選択性の大なるこ走である。特に・燃焼シ
ステムの省エネルギー化を目的とした酸素富化空気の製
造などの場合には、大量の空気量が必要で、より透過係
数の大きい膜材料が必要となってくる。従来より透過係
数の大きい材料としては、ポリジメチルシロキサン(い
わゆるシリコーンゴム)が良く知られておりPo2(酸
素透過係数)〜6 X 10−8cc蜘〆d・五・C#
&Hg の値を有している。この材料の成膜性を改善し
、実用に供するだめの技術は既に幾つか提案、実用化さ
れている。たとえば、特開昭51−89564号公報、
特開昭56−28605号公報、特開昭56−2650
6号公報などである。
Conventional Structures and Problems There has been active development in recent years of techniques for utilizing low-concentration oxygen, that is, so-called oxygen-enriched air having an oxygen content of 21 to 40 degrees. This oxygen-enriched air is expected to have a variety of uses, including energy saving in combustion systems, oxygen therapy in the medical field, sludge treatment, and oxidation processes in the chemical industry. Regarding the method for producing oxygen-enriched air, a membrane separation method using a so-called gas-permeable membrane is attracting attention because of its economic efficiency, safety, and ease of handling. In the separation and concentration of gases, the performance points required of the gas permeable membrane used are the permeability coefficient of the target gas and the high selectivity in separation from other gases. In particular, in the case of producing oxygen-enriched air for the purpose of energy saving in combustion systems, a large amount of air is required, and a membrane material with a higher permeability coefficient is required. Polydimethylsiloxane (so-called silicone rubber) is well known as a material with a higher permeability coefficient than before, and Po2 (oxygen permeability coefficient) ~6
&Hg. Several techniques for improving the film formability of this material and putting it into practical use have already been proposed and put into practical use. For example, Japanese Patent Application Laid-Open No. 51-89564,
JP-A-56-28605, JP-A-56-2650
Publication No. 6, etc.

しかしながらより小面積で大量の空気を処理し、大幅な
コスト低減を図るためにはこれらのオルガノシロキサン
系の膜材料より更に透過の秀れた材料が望まれている。
However, in order to treat a large amount of air in a smaller area and to significantly reduce costs, a material with even better permeability than these organosiloxane-based membrane materials is desired.

発明の目的 本発明は前記従来の欠点を解消するもので、透過性の優
れた気体透過膜を得ることを目的とするものである。
OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to provide a gas permeable membrane with excellent permeability.

発明の構成 本発明は前記目的を達成するもので、ハロゲン原子、ア
ルキル基、ハロゲン化アルキル基、フェニル基、オルガ
ノシリル基よ構成る群から選ばれた基または原子を置換
基として有する、1置換ポリアセチレンと1,2置換ポ
リアセチレンのいずれかまたは両方を母材とし、これに
酸素溶解性の大なる過弗化物を添加してなることを特徴
とする気体透過膜を提供するものである。
Structure of the Invention The present invention achieves the above-mentioned object, and provides a monosubstituted compound having as a substituent a group or atom selected from the group consisting of a halogen atom, an alkyl group, a halogenated alkyl group, a phenyl group, and an organosilyl group. The present invention provides a gas permeable membrane characterized by using either or both of polyacetylene and 1,2-substituted polyacetylene as a base material, to which a perfluoride with high oxygen solubility is added.

本発明に有用なポリアセチレン類としては、ポリメチル
アセチレン、ポリエチルアセチレン、ポリ−n−プロピ
ルアセチレン、ポリ−180−プロピルアセチン、ポリ
n−ブチルアセチレン、ポリー七eht−ブチルアセチ
レン、ポリへブチン、ポリオクチンなどのアルキル置換
ポリアセチレン、ポリトリメチルシリルアセチレン、ポ
リトリエチルシリルアセチレンなどのオルガノシリル置
換アセチレン、ポリフェニルアセチレン、ポリ−1−7
00−2フエニルアセチンなどのフェニル置換アセチレ
ン、ポリ−2−ヘキシン、ポリ1メチル−2−トリメチ
ルシリルアセチレン、ポリ−1,2−ビス(トリメチル
シリル)アセチレンなどの1゜2−ジ置換ア↓チレンな
どであり、特に嵩だかめ置換 を有するものが、気体透
過性にすぐれる。
Polyacetylenes useful in the present invention include polymethylacetylene, polyethylacetylene, poly-n-propylacetylene, poly-180-propylacetin, poly-n-butylacetylene, poly-7eht-butylacetylene, polyhebutyne, Alkyl-substituted polyacetylene such as polyoctin, organosilyl-substituted acetylene such as polytrimethylsilylacetylene, polytriethylsilylacetylene, polyphenylacetylene, poly-1-7
Phenyl-substituted acetylenes such as 00-2 phenylacetin, 1°2-disubstituted a↓tylenes such as poly-2-hexyne, poly-1methyl-2-trimethylsilylacetylene, poly-1,2-bis(trimethylsilyl)acetylene, etc. In particular, those with bulky substitution have excellent gas permeability.

これらのポリ2−は、ベンゼン、トルエン、キシレンな
どの芳香族溶媒に易溶であり、通常の方法により、これ
らの高分子を含む溶液から、キャスト法、水面展開法な
どによって容易に薄膜を得ることが出来る。得られた薄
膜は、多孔性基材に移しとられ、複合化される。あるい
は多孔性基材を前記高分子溶液に含浸させても良い。と
ころがこのようにして得られた薄膜は、その透過特性が
と元の材料が有する値より低下していることが認められ
た。例えば、典型的な例を挙げると、化タンタルを用い
、トルエン中で重合させたポリ1−メチル−2−トリメ
チルシリルアセチレン(分子量、約120万)は、透過
特性の初期値が、P()2=yx 1o−7cc −t
x/cd −sec−mHg 、 P02/ y、2−
1.8を示した。一方、この材料をベンゼンに溶解し、
この溶液から水面に展開して得られた膜をポリブタピレ
ン多孔膜上に移しとり測定すると、都、(換算値) =
:2 X 10−8cc *偏μ拳sec*cmHg 
These poly-2- are easily soluble in aromatic solvents such as benzene, toluene, and xylene, and thin films can be easily obtained from solutions containing these polymers by conventional methods such as casting or water surface development. I can do it. The obtained thin film is transferred to a porous substrate and composited. Alternatively, a porous substrate may be impregnated with the polymer solution. However, the thin film thus obtained was found to have lower transmission properties than the original material. For example, to give a typical example, poly-1-methyl-2-trimethylsilylacetylene (molecular weight, about 1.2 million) polymerized in toluene using tantalum oxide has an initial value of permeability of P()2 =yx 1o-7cc -t
x/cd-sec-mHg, P02/y, 2-
It showed 1.8. Meanwhile, dissolve this material in benzene,
When the membrane obtained by developing this solution on the water surface was transferred onto a polybutapyrene porous membrane and measured, the result was: (converted value) =
:2 X 10-8cc *Unbalanced fist sec*cmHg
.

′)2/FN2−2−6と変化した。あるいは多孔基材
に含浸し、50″C程度に熱処理して得られた膜も、同
程度の変化を示した。この傾向は、特に高透過性のポリ
アセチレン類で顕著であり、且つ、表面積の大きい形状
にする 顕著であった。
')2/FN2-2-6. Alternatively, a membrane obtained by impregnating a porous substrate and heat-treating it at about 50"C showed a similar change. This tendency is particularly remarkable for highly permeable polyacetylenes, and Making the shape larger was noticeable.

とじて用いた多孔膜中に存在する各種の充填材による゛
影響が一因であると判明した。すなわち嵩高い置換基を
有する、歪のか\ったポリアセチレンに有っては、通常
吸蔵し難いと考えられる分子を容易に吸蔵してしまうこ
とが判明した。しかも一端吸蔵された分子は、その分子
を溶解するような溶媒などで抽出しない限シ、安定にと
のポリマー中に存在していることが判明した。そこで本
発明者らは、吸蔵させる分子として、酸素溶解性が大き
く、人工血液などで用いられろ過弗化物を用いたところ
、酸素透過性にすぐれ、且つ酸素選択透過能の大きい気
体透過膜を得ることが出来た。
It was found that one of the causes was the influence of various fillers present in the porous membrane used. In other words, it has been found that a strained polyacetylene having bulky substituents easily occludes molecules that are normally considered difficult to occlude. Moreover, it has been found that molecules that have been occluded remain stably present in the polymer unless they are extracted with a solvent that dissolves the molecules. Therefore, the present inventors used filtration fluoride, which has high oxygen solubility and is used in artificial blood, as the molecule to be occluded, and obtained a gas permeable membrane with excellent oxygen permeability and high oxygen selective permeability. I was able to do it.

此処で用いられろ過弗化物としては、高弗素化されたハ
イドロカーボン、フルコール、エーテルカルボン酸アミ
ンなど、一般に良く知られているように、表面張力が小
さく、従って気体透過性にすぐれた弗化物ならどれでも
利用することが可能である。またこれら単分子だけでな
く、パーフルオロカーボンオリゴマーも好適であった。
The filtration fluorides used here include highly fluorinated hydrocarbons, flucols, ether carboxylic acid amines, etc. As is generally well known, fluorides with low surface tension and excellent gas permeability are used. It is possible to use any of them. In addition to these single molecules, perfluorocarbon oligomers were also suitable.

特に秀れたものとしては、既に人工血液として用いられ
ているパーフルオロデカリン、バーフルオロラトラヒド
ロフラン、パーフルオロトリブチルアミンなどが好適で
あった。これらの過弗化物をポリアセチレンに吸蔵させ
る方法は、特に限定されるものでは無いが、弗素を含む
バゲン化炭化水素のごとき溶媒に、該過弗化物とポリア
セチレンを溶解して混合溶液と成し、キャストする方法
、あるいは、過弗化物の蒸気にポリアセチレンを曝露す
る方法などにより導入することが可能である。過弗化物
のポリアセチレンに対する含有比率は、1〜80%、好
ましくは、2〜45チであった。このようにして得られ
る過弗化物含有ポリアセチレン複合膜は、そのポリアセ
チレンの特異な吸蔵能力によって安定で、他の酸素キャ
リアーを多孔膜に含浸して成るようないわゆる液膜にく
らべ著しい特性向上が発揮された。
Especially suitable were perfluorodecalin, perfluorolatrahydrofuran, perfluorotributylamine, etc., which are already used as artificial blood. The method for occluding these perfluorides in polyacetylene is not particularly limited, but includes dissolving the perfluoride and polyacetylene in a solvent such as a fluorine-containing vaporized hydrocarbon to form a mixed solution, It can be introduced by casting, or by exposing polyacetylene to perfluoride vapor. The content ratio of perfluoride to polyacetylene was 1 to 80%, preferably 2 to 45%. The perfluoride-containing polyacetylene composite membrane obtained in this way is stable due to the unique storage ability of the polyacetylene, and exhibits significantly improved properties compared to so-called liquid membranes made by impregnating other oxygen carriers into a porous membrane. It was done.

実施例の説明 以下本発明を幾つかの実施例を用いて詳述する。Description of examples The present invention will be explained in detail below using some examples.

本発明は以下に述べる実施例に限られるのでは無く、上
述のごとき組合せの系において充分な効果が得られるこ
とは云う迄も無い。。
It goes without saying that the present invention is not limited to the embodiments described below, and that sufficient effects can be obtained in combinations such as those described above. .

〈実施例−1〉 ポリアセチレンとして、ポリ−1−メチル−2トリメチ
ルシリルアセチレン、(Mω:〜120万)を用いた。
<Example-1> Poly-1-methyl-2-trimethylsilylacetylene (Mω: ~1.2 million) was used as polyacetylene.

このポリマーをベンゼンに溶解しキャスト法によって、
厚さ約180μのフィルムを得た。パー7/l/オロト
リプチルアミンをガラス製シャーレに入れ、シャーレを
前記フィルムで覆い該シャーレを真空乾燥機中に設置し
た。系全体をロータリーポンプで減圧にし、60°Cに
て約3時間放置した。冷却後、常圧に戻し、フィルムを
取り出した。フィルムの処理前後の容量測定から、パー
フルオロ) IJブチルアミン約8%フィルムに混入し
ていることが分った。このフィルムの気体透過性を測定
したところ、常温で、酸素透過係数として、4.5×1
O−6(cc−am/c4−気・偏Hq)、酸素/窒素
の選択性は3.2を示した。
By dissolving this polymer in benzene and casting,
A film with a thickness of about 180μ was obtained. Par7/l/otriptylamine was placed in a glass Petri dish, the Petri dish was covered with the film, and the Petri dish was placed in a vacuum dryer. The entire system was evacuated using a rotary pump and left at 60°C for about 3 hours. After cooling, the pressure was returned to normal and the film was taken out. Capacity measurements of the film before and after processing revealed that about 8% of perfluoro)IJ butylamine was mixed in the film. When the gas permeability of this film was measured, the oxygen permeability coefficient was 4.5×1 at room temperature.
O-6 (cc-am/c4-air/partial Hq), oxygen/nitrogen selectivity was 3.2.

〈実施例−2〉 ポリアセチレンとして、ポリ−t−ブチルア方チレン(
Mω;〜40万)を用い、溶媒として(商品名)グイフ
ーン 3に溶解した。これにノく−フルオロデカリンを
溶かし、ボリューとノ(−フルオロデカリンの比を10
:1とした。この溶液をキャストし、フィルムを得た。
<Example-2> As polyacetylene, poly-t-butyl abutylene (
Mω; ~400,000) was used and dissolved in Guihoon 3 (trade name) as a solvent. Dissolve fluorodecalin in this and adjust the ratio of volume to fluorodecalin to 10.
:1. This solution was cast to obtain a film.

このフィルムの気体透過性は、酸素透過係数が、1.2
5X 10  (cc・cm、/Cd−π・ctali
q ) 、酸素と窒素の分離比として、3.6が得られ
た。
The gas permeability of this film has an oxygen permeability coefficient of 1.2.
5X 10 (cc・cm, /Cd−π・ctali
q), a separation ratio of 3.6 between oxygen and nitrogen was obtained.

〈実施例−3〉 実施例−1または2の方法を用い、フィルムを作成し、
気体透過性を測定した。結果を表に示す。
<Example-3> Using the method of Example-1 or 2, a film was created,
Gas permeability was measured. The results are shown in the table.

以下余白 発明の効果 以上要するに本発明は嵩高い置換基を有し、歪のかかっ
たポリアセチレンに過弗化物を混入してなる気体透過膜
を提供するもので、気体透過性に極めて優れる利点を有
する。
The following is a margin. Effects of the Invention In short, the present invention provides a gas permeable membrane made by mixing perfluoride into strained polyacetylene having bulky substituents, and has the advantage of extremely excellent gas permeability. .

Claims (2)

【特許請求の範囲】[Claims] (1)ハロゲン原子、アルキル基、ハロゲン化アルキル
基、フェニル基、オルガノシリル基よりなる群から選ば
れた基または原子を置換基として有する、1置換ポリア
セチレン1,2置換ポリアセチレンのいずれか一方また
は両方からなる母材に、酸素溶解性の大なる過弗化物を
添加してなることを特徴とする気体透過膜。
(1) One or both of 1-substituted polyacetylene and 1- and 2-substituted polyacetylene having as a substituent a group or atom selected from the group consisting of a halogen atom, an alkyl group, a halogenated alkyl group, a phenyl group, and an organosilyl group. A gas permeable membrane characterized by being made by adding a perfluoride having a high oxygen solubility to a base material consisting of.
(2)過弗化物が、パーフルオロデカリン、パーフルオ
ロテトラヒドロフラン、パーフルオロトリブチルアミン
より選ばれた一種類またはその混合物であることを特徴
とする特許請求の範囲第1項記載の気体透過膜。
(2) The gas permeable membrane according to claim 1, wherein the perfluoride is one selected from perfluorodecalin, perfluorotetrahydrofuran, and perfluorotributylamine, or a mixture thereof.
JP59157831A 1984-07-27 1984-07-27 Gas permeable membrane Granted JPS6135824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59157831A JPS6135824A (en) 1984-07-27 1984-07-27 Gas permeable membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59157831A JPS6135824A (en) 1984-07-27 1984-07-27 Gas permeable membrane

Publications (2)

Publication Number Publication Date
JPS6135824A true JPS6135824A (en) 1986-02-20
JPH0365223B2 JPH0365223B2 (en) 1991-10-11

Family

ID=15658279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59157831A Granted JPS6135824A (en) 1984-07-27 1984-07-27 Gas permeable membrane

Country Status (1)

Country Link
JP (1) JPS6135824A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657564A (en) * 1985-12-13 1987-04-14 Air Products And Chemicals, Inc. Fluorinated polymeric membranes for gas separation processes
JPS62227411A (en) * 1986-03-28 1987-10-06 Shin Etsu Chem Co Ltd Production by separation membrane
JPS6349221A (en) * 1986-08-19 1988-03-02 Matsushita Electric Ind Co Ltd Hybrid membrane for separating gas
WO2010104044A1 (en) * 2009-03-09 2010-09-16 住友化学株式会社 Co2 permeation barrier membrane
WO2016047351A1 (en) * 2014-09-22 2016-03-31 富士フイルム株式会社 Gas separation membrane, gas separation module, gas separator and gas separation method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657564A (en) * 1985-12-13 1987-04-14 Air Products And Chemicals, Inc. Fluorinated polymeric membranes for gas separation processes
JPS62227411A (en) * 1986-03-28 1987-10-06 Shin Etsu Chem Co Ltd Production by separation membrane
JPH0423571B2 (en) * 1986-03-28 1992-04-22 Shinetsu Chem Ind Co
JPS6349221A (en) * 1986-08-19 1988-03-02 Matsushita Electric Ind Co Ltd Hybrid membrane for separating gas
WO2010104044A1 (en) * 2009-03-09 2010-09-16 住友化学株式会社 Co2 permeation barrier membrane
WO2016047351A1 (en) * 2014-09-22 2016-03-31 富士フイルム株式会社 Gas separation membrane, gas separation module, gas separator and gas separation method
JPWO2016047351A1 (en) * 2014-09-22 2017-06-08 富士フイルム株式会社 Gas separation membrane, gas separation module, gas separation device, and gas separation method

Also Published As

Publication number Publication date
JPH0365223B2 (en) 1991-10-11

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