JPH0718009A - Emulsifier for emulsion polymerization - Google Patents

Emulsifier for emulsion polymerization

Info

Publication number
JPH0718009A
JPH0718009A JP18707293A JP18707293A JPH0718009A JP H0718009 A JPH0718009 A JP H0718009A JP 18707293 A JP18707293 A JP 18707293A JP 18707293 A JP18707293 A JP 18707293A JP H0718009 A JPH0718009 A JP H0718009A
Authority
JP
Japan
Prior art keywords
emulsion
group
emulsifier
polymer
formula
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
JP18707293A
Other languages
Japanese (ja)
Other versions
JP3292551B2 (en
Inventor
Akinobu Ichihara
明信 市原
Hisayuki Nishitani
寿行 西谷
Hiroki Yamaguchi
広樹 山口
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.)
DKS Co Ltd
Original Assignee
Dai Ichi Kogyo Seiyaku 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 Dai Ichi Kogyo Seiyaku Co Ltd filed Critical Dai Ichi Kogyo Seiyaku Co Ltd
Priority to JP18707293A priority Critical patent/JP3292551B2/en
Publication of JPH0718009A publication Critical patent/JPH0718009A/en
Application granted granted Critical
Publication of JP3292551B2 publication Critical patent/JP3292551B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Macromonomer-Based Addition Polymer (AREA)

Abstract

PURPOSE:To improve the stability of emulsion during emulsion polymn. and obtain a polymer emulsion which provides a polymer and a film having remarkably improved water resistance, heat resistance, and adhesive properties by using a specific reactive emulsifier. CONSTITUTION:A reactive emulsifier for emulsion polymn. is represented by formula I [wherein R1 is 6-30C alkyl; R2 is H or methyl; A is a 2-4C optionally substd. alkylene group; n is an integer of 1-200 provided when n is 2 or higher, then (AO)n may be a homopolymer comprising one kind of repeating unit as shown by formula II or may be a block- or random-copolymer comprising two or more kinds of repeating units having different A's (A<1>, A<2>,...0 as shown by formula III (wherein n1+n2+...=n); m is 1 or 2; and M is H, an alkali metal, an ammonium ion, or an alkanolamine residue].

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、乳化重合用乳化剤に関
する。
FIELD OF THE INVENTION The present invention relates to an emulsifier for emulsion polymerization.

【0002】[0002]

【従来の技術】乳化重合用乳化剤としては、従来よりド
デシルベンゼンスルホン酸ナトリウム、ポリオキシエチ
レンノニルフェニルエーテル等のアニオン系界面活性剤
やノニオン系界面活性剤が利用されている。しかし、こ
れら乳化剤を用いたポリマーエマルションから得られた
ポリマーフィルムにあっては、使用した乳化剤が、遊離
の状態で前記ポリマーフィルム中に残留する。このた
め、該フィルムの耐水性、接着性が劣る等の問題点があ
った。
As an emulsifying agent for emulsion polymerization, anionic surfactants such as sodium dodecylbenzene sulfonate and polyoxyethylene nonylphenyl ether and nonionic surfactants have been conventionally used. However, in the polymer film obtained from the polymer emulsion using these emulsifiers, the emulsifier used remains in the polymer film in a free state. Therefore, there have been problems such as poor water resistance and adhesiveness of the film.

【0003】そこで、上記の問題点の改善策として、共
重合性の不飽和基を有する反応性乳化剤が数多く提案さ
れた。例えば、特公昭46−12472号、特開昭54
−14431号、特公昭46−34894号、特公昭5
6−29657号、特開昭51−30285号、特公昭
49−46291号及び特開昭56−127697号等
にはアニオン性の反応性界面活性剤が記載され、また、
特開昭56−28208号及び特開昭50−98484
号等には非イオン性の反応性界面活性剤につきそれぞれ
記載されていて、各種モノマーについて乳化重合が試み
られている。
Therefore, many reactive emulsifiers having a copolymerizable unsaturated group have been proposed as measures for solving the above problems. For example, JP-B-46-12472 and JP-A-54
-14431, JP-B-46-34894, JP-B-5
6-29657, JP-A-51-30285, JP-B-49-46291 and JP-A-56-127697 describe anionic reactive surfactants.
JP-A-56-28208 and JP-A-50-98484
JP-A No. 2004-135242 describes nonionic reactive surfactants, and emulsion polymerization of various monomers has been attempted.

【0004】ところが、非イオン性の反応性乳化剤は、
乳化重合時の安定性に問題があり、重合中の凝集物が多
かったり、生成粒子が粗く、経時安定性が劣る等の問題
点を有していた。また硫酸エステル塩,スルホン酸塩型
のアニオン性の反応性乳化剤は、乳化重合時の安定性は
割合良好であるが、ポリマーエマルションから得られた
ポリマー又はポリマーフィルムは耐水性,耐熱性,接着
性において充分満足するものが得られていないのが実情
である。
However, the nonionic reactive emulsifier is
There was a problem in stability during emulsion polymerization, and there were problems such as a large number of aggregates during polymerization, coarse particles produced, and poor stability over time. Sulfate ester and sulfonate type anionic reactive emulsifiers have a good stability in emulsion polymerization, but polymers or polymer films obtained from polymer emulsions have water resistance, heat resistance and adhesiveness. The reality is that we have not been able to obtain satisfactory results in.

【0005】[0005]

【発明が解決しようとする課題】本発明は、上記の実情
に鑑みてなされたものであって、その目的は、乳化重合
時の安定性を良好なものにし得、しかも、ポリマーエマ
ルションから得られたポリマー及びポリマーフィルムの
耐水性,耐熱性および接着性が著しく改善できる改良さ
れた反応性乳化重合用乳化剤を提供するところにある。
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to improve the stability during emulsion polymerization and to obtain the polymer emulsion. Another object of the present invention is to provide an improved emulsifier for reactive emulsion polymerization, which can remarkably improve the water resistance, heat resistance and adhesiveness of polymers and polymer films.

【0006】[0006]

【課題を解決するための手段】[Means for Solving the Problems]

(1)発明の経過 本発明者らは、鋭意研究を重ねた結果、アニオン性の親
水基としてエーテルカルボン酸又はその塩を有し、また
不飽和基の結合位置が乳化剤の疎水基部分であることが
乳化重合用乳化剤として適していることを見出し、本発
明に到達したものである。
(1) Progress of the invention As a result of intensive studies, the present inventors have an ethercarboxylic acid or a salt thereof as an anionic hydrophilic group, and the bonding position of the unsaturated group is the hydrophobic group portion of the emulsifier. The present invention has been found to be suitable as an emulsifier for emulsion polymerization and has reached the present invention.

【0007】(2)発明の概要 以上の知見に基づき、本発明は、下記一般式(I)で表
わされる乳化重合用乳化剤(以下、「本発明乳化剤」と
もいう。)を要旨とするものである。
(2) Outline of the Invention Based on the above findings, the present invention is based on an emulsifier for emulsion polymerization represented by the following general formula (I) (hereinafter, also referred to as "the emulsifier of the present invention"). is there.

【0008】[0008]

【化4】 [Chemical 4]

【0009】[式中、R1 は炭素数6〜30のアルキル
基である。R2 は水素原子またはメチル基である。Aは
炭素数2〜4のアルキレン基または置換アルキレン基で
ある。nは1〜200の整数であり、nが2以上の場
合、(AO)n は、下式(i)で示される、1種の繰返
し単位からなるホモポリマー
[In the formula, R 1 is an alkyl group having 6 to 30 carbon atoms. R 2 is a hydrogen atom or a methyl group. A is an alkylene group having 2 to 4 carbon atoms or a substituted alkylene group. n is an integer of 1 to 200, and when n is 2 or more, (AO) n is a homopolymer consisting of one type of repeating unit represented by the following formula (i).

【0010】[0010]

【化5】 [Chemical 5]

【0011】であってもよいし、下式(ii)で示され
る、異なるA(A1 ,A2 …)を有する2種以上の繰返
し単位からなるブロックポリマーまたはランダムポリマ
Or a block polymer or a random polymer represented by the following formula (ii) consisting of two or more kinds of repeating units having different A (A 1 , A 2 ...)

【0012】[0012]

【化6】 [Chemical 6]

【0013】であってもよい。mは1または2である。
Mは水素原子またはアルカリ金属、アンモニウムイオン
またはアルカノールアミン残基である。]以下、発明の
構成に関する主要な事項につき項分けして説明する。
It may be m is 1 or 2.
M is a hydrogen atom or an alkali metal, ammonium ion or alkanolamine residue. The main items relating to the structure of the invention will be described below item by item.

【0014】(3)置換基 上記一般式(I)の化合物において、置換基R1 は、炭
素数6〜30のアルキル基である。具体例としては、ヘ
キシル基,ヘプチル基,オクチル基,ノニル基,デシル
基,ウンデシル基,ドデシル基,トリデシル基,テトラ
デシル基,ペンタデシル基,ヘキサデシル基,ヘプタデ
シル基,オクタデシル基,ノナデシル基,トリコシル
基,ペンタコシル基,ヘプタコシル基等が挙げられる。
(3) Substituent In the compound of the general formula (I), the substituent R 1 is an alkyl group having 6 to 30 carbon atoms. Specific examples include hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group, nonadecyl group, tricosyl group, Examples thereof include a pentacosyl group and a heptacosyl group.

【0015】次に置換基R2 は、水素原子またはメチル
基である。
Next, the substituent R 2 is a hydrogen atom or a methyl group.

【0016】Aは、炭素数2〜4のアルキレン基または
置換アルキレン基である。具体的には、アルキレン基と
してエチレン基,プロピレン基,ブチレン基,イソブチ
レン基等であり、置換アルキレン基としては1,2−ブ
チレンオキシド基,プロピレンオキシド基等である。n
は1〜200の整数であり、より好ましくは2〜100
の範囲である。
A is an alkylene group having 2 to 4 carbon atoms or a substituted alkylene group. Specifically, the alkylene group is ethylene group, propylene group, butylene group, isobutylene group or the like, and the substituted alkylene group is 1,2-butylene oxide group, propylene oxide group or the like. n
Is an integer of 1 to 200, and more preferably 2 to 100.
Is the range.

【0017】前記nが2以上の場合、式(I)における
(AO)n は、1種類の繰返し単位からなるホモポリマ
ー(前式(i)参照)であってもよいし、異なる置換基
A(A1,A2,A3……)を有する2種以上の繰返し
単位からなるブロックポリマーまたはランダムポリマー
(前式(ii)参照)であってもよい。あるいは、nが1
である場合の化合物と、nが2以上の場合における(A
O)n がホモポリマー,ブロックポリマーあるいはラン
ダムポリマーである化合物の中から2種以上を混合した
混合物であってもよい。
When n is 2 or more, (AO) n in the formula (I) may be a homopolymer consisting of one kind of repeating unit (see the above formula (i)) or different substituents A It may be a block polymer or random polymer (see the previous formula (ii)) composed of two or more kinds of repeating units having (A1, A2, A3 ...). Alternatively, n is 1
In the case where n is 2 or more and (A
O) n may be a mixture of two or more compounds selected from homopolymers, block polymers or random polymers.

【0018】又、Mは水素原子,アルカリ金属,アンモ
ニウムイオン又はアルカノールアミン残基である。アル
カリ金属は例えばナトリウム、カリウム、リチウム等
が、アルカノールアミン残基は例えばモノエタノールア
ミン、トリエタノールアミン、ジイソプロパノールアミ
ンの残基等が挙げられる。
M is a hydrogen atom, alkali metal, ammonium ion or alkanolamine residue. Examples of the alkali metal include sodium, potassium and lithium, and examples of the alkanolamine residue include residues of monoethanolamine, triethanolamine and diisopropanolamine.

【0019】(4)合成 本発明の乳化重合用乳化剤を得るための反応条件は特に
限定されるものではなく、例えば、α−オレフィンエポ
キシドとアリルアルコールを反応させた後に、常法に従
ってアルキレンオキシドを付加した後、ヒドロキシル基
を酸化するか、もしくは、モノハロゲン化酢酸を反応さ
せてカルボキシル化を行なうか、または、アクリロニト
リル,アクリル酸エステルを反応させ、アルカリでケン
化を行ない、必要に応じアルカリ性物質で中和すること
により製造できる。
(4) Synthesis The reaction conditions for obtaining the emulsifying agent for emulsion polymerization of the present invention are not particularly limited. For example, after the α-olefin epoxide and allyl alcohol are reacted, alkylene oxide is added by an ordinary method. After the addition, the hydroxyl group is oxidized, or monohalogenated acetic acid is reacted to carry out carboxylation, or acrylonitrile or acrylic ester is reacted to perform saponification with alkali, and if necessary, an alkaline substance is used. It can be produced by neutralizing with.

【0020】(5)乳化重合用モノマー 本発明乳化剤を用いた乳化重合に適用されうるモノマー
としては各種のものを挙げることができ、例えば、アク
リル酸,アクリル酸メチル,アクリル酸ブチル,アクリ
ル酸2−エチルヘキシル,メタクリル酸メチル,アクリ
ロニトリル,アクリルアミド,アクリル酸ヒドロキシエ
チルエステル等のアクリル系モノマー,例えば、スチレ
ン,ジビニルベンゼン等の芳香族系モノマー,酢酸ビニ
ル等のビニルエステル系モノマー,塩化ビニル,塩化ビ
ニリデン等のハロゲン化オレフィン系モノマー,ブタジ
エン,イソプレン,クロロプレン等の共役ジオレフィン
系モノマー等の他、エチレン,無水マレイン酸,マレイ
ン酸メチル等がある。本発明の乳化剤は、上記モノマー
の1種または2種以上の乳化重合または懸濁重合に利用
できる。
(5) Emulsion Polymerization Monomer Various monomers can be used as the monomer applicable to the emulsion polymerization using the emulsifier of the present invention. For example, acrylic acid, methyl acrylate, butyl acrylate, acrylic acid 2 -Acrylic monomers such as ethylhexyl, methyl methacrylate, acrylonitrile, acrylamide, hydroxyethyl acrylate, for example, aromatic monomers such as styrene and divinylbenzene, vinyl ester monomers such as vinyl acetate, vinyl chloride, vinylidene chloride, etc. In addition to halogenated olefinic monomers, conjugated diolefinic monomers such as butadiene, isoprene, chloroprene, etc., there are ethylene, maleic anhydride, methyl maleate and the like. The emulsifier of the present invention can be used for emulsion polymerization or suspension polymerization of one or more of the above monomers.

【0021】(6)重合条件 本発明乳化剤を使用した乳化重合反応に使用される重合
開始剤は従来公知のものでよく、例えば、過酸化水素,
過硫酸カリウム,アゾビスイソブチロニトリル,ベンゾ
イルパーオキサイド等が利用される。また、重合促進剤
としては、亜硫酸水素ナトリウム,硫酸第1鉄アンモニ
ウム等が使用される。
(6) Polymerization conditions The polymerization initiator used in the emulsion polymerization reaction using the emulsifier of the present invention may be a conventionally known one, for example, hydrogen peroxide,
Potassium persulfate, azobisisobutyronitrile, benzoyl peroxide, etc. are used. As the polymerization accelerator, sodium hydrogen sulfite, ferrous ammonium sulfate, etc. are used.

【0022】本発明乳化剤の使用量は、通常、全モノマ
ーに対して0.1〜20重量%、より好ましくは、0.
2〜5.0重量%が適当である。なお、所望により、他
種乳化剤または保護コロイド剤を併用してもよい。
The amount of the emulsifier of the present invention to be used is usually 0.1 to 20% by weight, more preferably 0.
2 to 5.0% by weight is suitable. If desired, other emulsifiers or protective colloid agents may be used in combination.

【0023】本発明の乳化剤を添加して得られるポリマ
ーエマルションは、例えば接着剤,被覆剤,含浸補強剤
等として、木材,金属,紙,布,その他コンクリート等
に適用することができる。またエマルションあるいはラ
テックスから取り出したポリマーは樹脂,ゴム,ポリマ
ー改質剤等に使用することができる。
The polymer emulsion obtained by adding the emulsifier of the present invention can be applied to wood, metal, paper, cloth, concrete and the like as an adhesive, a coating agent, an impregnating reinforcing agent and the like. The polymer taken out from the emulsion or latex can be used as a resin, a rubber, a polymer modifier and the like.

【0024】[0024]

【作用】本発明の乳化重合用乳化剤は共重合性の二重結
合であるアリル基を有し、アニオン性の親水基としてカ
ルボン酸又はその塩であることが特徴である。従来のス
ルホン酸塩又は硫酸エステル塩型の反応性乳化剤と比
べ、乳化重合により得られたエマルションから作製した
ポリマー及びポリマーフィルムの耐熱着色性が優れてい
る。また、乳化重合後、無機塩もしくは酸を添加し、ポ
リマーを取り出す場合、本発明乳化重合用乳化剤はカル
ボン酸塩であるため、酸によりカルボン酸になり、ポリ
マーの凝集が非常に容易である。更にポリマー凝集後の
廃液には遊離の乳化剤がほとんど存在しないため廃水負
荷が軽減出来る。
The emulsifier for emulsion polymerization of the present invention is characterized by having an allyl group which is a copolymerizable double bond and being a carboxylic acid or a salt thereof as an anionic hydrophilic group. Compared with the conventional sulfonate or sulfate ester type reactive emulsifiers, the polymers and polymer films produced from emulsions obtained by emulsion polymerization have excellent heat resistance. When an inorganic salt or an acid is added after the emulsion polymerization and the polymer is taken out, the emulsifier for emulsion polymerization of the present invention is a carboxylic acid salt, so that the acid turns into a carboxylic acid, and the aggregation of the polymer is very easy. Furthermore, since the free liquid emulsifier hardly exists in the waste liquid after polymer coagulation, the waste water load can be reduced.

【0025】[0025]

【実施例】以下、実施例および比較例により本発明の実
施態様および効果につき述べるが、例示は単に説明用の
ものであって、発明思想の限定または制限を意図したも
のではない。なお、文中「%」および「部」とあるのは
それぞれ重量基準を意味する。
The embodiments and effects of the present invention will be described below with reference to Examples and Comparative Examples, but the examples are merely for the purpose of illustration and are not intended to limit or limit the inventive idea. In the text, "%" and "parts" mean weight basis.

【0026】製造例1 オートクレーブにアリルアルコール58g(1モル)と
α−オレフィンエポキシド(AOE X24ダイセル化
学工業(株)製)196g(1モル)を仕込み、水酸化
カリウムを触媒として圧力1.5kg/cm2 、温度1
30℃の条件にて反応させた後、次にエチレンオキシド
440g(10モル)を付加させて、アリルアルコール
α−オレフィンエポキシド1モルエチレンオキシド10
モル付加体を得た(以下、「エチレンオキシド」を単に
「EO」ともいう)。
Production Example 1 An autoclave was charged with 58 g (1 mol) of allyl alcohol and 196 g (1 mol) of α-olefin epoxide (AOE X24 manufactured by Daicel Chemical Industries Ltd.), and pressure of 1.5 kg / with potassium hydroxide as a catalyst. cm 2 , temperature 1
After reacting at 30 ° C., 440 g (10 mol) of ethylene oxide was added next, and 1 mol of allyl alcohol α-olefin epoxide and ethylene oxide 10 were added.
A molar adduct was obtained (hereinafter, "ethylene oxide" is also simply referred to as "EO").

【0027】次に、撹拌機および温度計を備えた反応容
器に上記の反応組成物であるアリルアルコールα−オレ
フィンエポキシド1モルEO10モル付加体347g
(0.5モル)仕込む。次に撹拌しながらモノクロール
酢酸ナトリウム64.1g(0.55モル)を室温に
て、30分をかけて仕込む。続いて水酸化ナトリウム2
2g(0.55モル)を40℃にした反応容器内に3時
間をかけて添加する。その後、40℃にて17時間反応
させる。
Next, in a reaction vessel equipped with a stirrer and a thermometer, 347 g of 1 mol of allyl alcohol α-olefin epoxide and 10 mol of EO adduct of the above reaction composition.
(0.5 mol) is charged. Next, with stirring, 64.1 g (0.55 mol) of sodium monochloroacetate is charged at room temperature over 30 minutes. Then sodium hydroxide 2
2 g (0.55 mol) is added to the reaction vessel heated to 40 ° C. over 3 hours. Then, it is made to react at 40 degreeC for 17 hours.

【0028】次に、10%硫酸を500ml加え、75
℃に昇温し、撹拌後静置して水層を除去する。次に、油
層に塩化メチレン400ml、水200mlを加え水洗
する。水洗を3回行なった後、油層の塩化メチレンを蒸
留により除去した。油層の残った反応組成物を48%水
酸化ナトリウムでpH8.0まで中和し、下記化7の本
発明乳化剤[A]を得た。
Next, 500 ml of 10% sulfuric acid was added, and 75
The temperature is raised to ℃, after stirring, the mixture is allowed to stand and the aqueous layer is removed. Next, 400 ml of methylene chloride and 200 ml of water are added to the oil layer and washed with water. After washing with water three times, methylene chloride in the oil layer was removed by distillation. The reaction composition remaining in the oil layer was neutralized to pH 8.0 with 48% sodium hydroxide to obtain the emulsifier [A] of the present invention represented by the following chemical formula 7.

【0029】製造例2 また、アリルアルコールα−オレフィンエポキシド(A
OE X24)1モルEO30モル付加体を同様の操作
にて、末端水酸基のカルボキシル基化を行ない、下記化
8の本発明乳化剤[B]を得た。
Production Example 2 Further, allyl alcohol α-olefin epoxide (A
OEX 24) 1 mol of EO 30 mol of the adduct was converted to a carboxyl group at the terminal hydroxyl group by the same procedure to obtain the emulsifier [B] of the present invention of the following Chemical formula 8.

【0030】[0030]

【化7】 [Chemical 7]

【0031】[0031]

【化8】 [Chemical 8]

【0032】製造例3 オートクレーブにメタリルアルコール72g(1モ
ル)、α−オレフィンエポキシド(AOE X68:ダ
イセル化学工業(株)製)252g(1モル)を仕込
み、水酸化カリウムを触媒として、圧力1.5kg/c
2 、温度130℃の条件にて反応させた後、次に、プ
ロピレンオキシド580g(10モル)を、次いでエチ
レンオキシド1320g(30モル)をそれぞれ付加
し、得られたメタリルアルコールα−オレフィンエポキ
シド1モル、プロピレンオキシド10モル、エチレンオ
キシド30モル付加体を得た。この付加体222.4g
(0.1モル)を、撹拌機及び温度計を備えた反応容器
に仕込む。次に、撹拌を行ないながら、50℃にてアク
リロニトリル5.3(0.1モル)を1時間で添加し、
続いて温度を80℃に昇温し、1時間シアノエチル化反
応を行なった。
Production Example 3 72 g (1 mol) of methallyl alcohol and 252 g (1 mol) of α-olefin epoxide (AOE X68: manufactured by Daicel Chemical Industries, Ltd.) were charged into an autoclave, and pressure was adjusted to 1 with potassium hydroxide as a catalyst. 0.5 kg / c
After the reaction was carried out under the conditions of m 2 and temperature of 130 ° C., 580 g (10 mol) of propylene oxide and then 1320 g (30 mol) of ethylene oxide were added, respectively, to obtain the methallyl alcohol α-olefin epoxide 1 A mole, a propylene oxide 10 mole, and an ethylene oxide 30 mole adduct were obtained. 222.4 g of this adduct
(0.1 mol) is charged to a reaction vessel equipped with stirrer and thermometer. Next, with stirring, acrylonitrile 5.3 (0.1 mol) was added at 50 ° C. over 1 hour,
Then, the temperature was raised to 80 ° C. and cyanoethylation reaction was carried out for 1 hour.

【0033】次に、10%塩酸200ml、水200m
lを加え、90℃に昇温し、3時間撹拌を行ないシアノ
基のケン化を行なった。その後、減圧脱水した後アセト
ン200mlを加え、濾過した後、濾液中のアセトンを
蒸留して除き、下記化9の本発明乳化剤[C]を得た。
Next, 200 ml of 10% hydrochloric acid and 200 m of water
1 was added, the temperature was raised to 90 ° C., and the mixture was stirred for 3 hours to saponify the cyano group. Then, the mixture was dehydrated under reduced pressure, 200 ml of acetone was added, the mixture was filtered, and the acetone in the filtrate was distilled off to obtain an emulsifier [C] of the present invention represented by the following chemical formula 9.

【0034】[0034]

【化9】 [Chemical 9]

【0035】製造例4 製造例1〜製造例3に準じ各乳化剤を製造し、本発明乳
化剤[D]〜[F]を得た(下記[化10]参照)。
Production Example 4 Emulsifiers were produced according to Production Examples 1 to 3 to obtain the emulsifiers [D] to [F] of the present invention (see [Chemical Formula 10] below).

【0036】[0036]

【化10】 [Chemical 10]

【0037】使用例1 撹拌機,還流冷却器,温度計および滴下漏斗を備えた反
応器に、イオン交換水294gと表1に示す本発明乳化
剤6gを仕込み、80℃まで昇温させた。窒素ガスにて
水中の溶存酸素を除去した後、アクリル酸エチル20g
と過硫酸アンモニウム0.5gを加えて先行重合させ、
重合開始10分後より、3時間をかけてアクリル酸エチ
ル180gを滴下、重合させてエマルションを得た。こ
のときの乳化重合の安定性、エマルションの機械安定
性,起泡性およびこのエマルションより製造したポリマ
ーフィルムの耐水性のテスト結果を表1に示した。ま
た、比較として表1に示す従来の乳化剤についても、同
様のテストを実施した。
Use Example 1 A reactor equipped with a stirrer, a reflux condenser, a thermometer and a dropping funnel was charged with 294 g of ion-exchanged water and 6 g of the emulsifier of the present invention shown in Table 1 and heated to 80 ° C. After removing dissolved oxygen in water with nitrogen gas, ethyl acrylate 20 g
And 0.5 g of ammonium persulfate are added for pre-polymerization,
After 10 minutes from the start of the polymerization, 180 g of ethyl acrylate was added dropwise over 3 hours for polymerization to obtain an emulsion. Table 1 shows the results of the emulsion polymerization stability, the mechanical stability of the emulsion, the foamability, and the water resistance of the polymer film produced from this emulsion. In addition, the same test was performed for the conventional emulsifiers shown in Table 1 for comparison.

【0038】[0038]

【表1】 [Table 1]

【0039】使用例2 アクリル酸ブチル100g、スチレン100g、イオン
交換水290g、過硫酸カリウム0.5gおよび表2に
示す本発明乳化剤10gを混合して混合モノマー乳濁液
を調製し、窒素ガスにて溶存酸素を除去した。次に、撹
拌機,還流冷却器,温度計および滴下漏斗を備えた反応
器に上記混合モノマーの乳濁液を100g仕込み、80
℃に昇温させて重合させた。続いて残りの混合モノマー
の乳濁液400.5gを3時間かけて滴下し、重合を行
なわせ、エマルションを得た。
USE EXAMPLE 2 100 g of butyl acrylate, 100 g of styrene, 290 g of ion-exchanged water, 0.5 g of potassium persulfate and 10 g of the emulsifier of the present invention shown in Table 2 were mixed to prepare a mixed monomer emulsion, which was mixed with nitrogen gas. Dissolved oxygen was removed. Next, 100 g of the above emulsion of mixed monomers was charged into a reactor equipped with a stirrer, a reflux condenser, a thermometer and a dropping funnel, and
Polymerization was carried out by raising the temperature to ° C. Subsequently, 400.5 g of the remaining mixed monomer emulsion was added dropwise over 3 hours to carry out polymerization to obtain an emulsion.

【0040】このときの乳化重合安定性、エマルション
の機械安定性,起泡性,エマルションより製造したポリ
マーフィルムの耐水性および接触角のテスト結果を表2
に示した。また、比較として表2に示す従来の乳化剤に
ついても同様のテストを実施した。
The results of the emulsion polymerization stability, the mechanical stability of the emulsion, the foamability, and the water resistance and contact angle of the polymer film produced from the emulsion are shown in Table 2 below.
It was shown to. Also, for comparison, the same test was performed for the conventional emulsifiers shown in Table 2.

【0041】[0041]

【表2】 [Table 2]

【0042】使用例3 撹拌機,還流冷却器,温度計および滴下漏斗を備えた反
応器に、イオン交換水250gおよび表3に示す本発明
乳化剤5gを仕込み、80℃まで昇温させた。窒素ガス
にて水中の溶存酸素を除去した後、アクリル酸ブチル1
25gとメタクリル酸メチル125gとを混ぜて得た混
合モノマー250g中の20gと、過硫酸アンモニウム
0.5gとを加えて先行重合させ、次に重合開始10分
後より、3時間をかけて残りの混合モノマー230gを
滴下して重合させ、エマルションを得た。また、比較と
して表3に示した他の反応性乳化剤についても同様の操
作にてエマルションを調製した。
Use Example 3 A reactor equipped with a stirrer, a reflux condenser, a thermometer and a dropping funnel was charged with 250 g of ion-exchanged water and 5 g of the emulsifier of the present invention shown in Table 3 and heated to 80 ° C. After removing dissolved oxygen in water with nitrogen gas, butyl acrylate 1
20 g of 250 g of a mixed monomer obtained by mixing 25 g and 125 g of methyl methacrylate and 0.5 g of ammonium persulfate were added to carry out a prepolymerization, and 10 minutes after the initiation of the polymerization, the remaining mixing was carried out for 3 hours. 230 g of the monomer was added dropwise and polymerized to obtain an emulsion. Further, for comparison, emulsions were prepared in the same manner for the other reactive emulsifiers shown in Table 3.

【0043】このときの乳化重合安定性および得られた
エマルションについて、未重合の乳化剤の定量およびそ
のエマルションより作成したポリマーフィルムの接触
角,接着力及び耐水性を測定した結果を表3に示した。
Regarding the emulsion polymerization stability at this time and the obtained emulsion, the amount of unpolymerized emulsifier was quantified, and the contact angle, adhesive strength and water resistance of the polymer film prepared from the emulsion were measured. .

【0044】[0044]

【表3】 [Table 3]

【0045】使用例4 撹拌機,還流冷却器,温度計および滴下ロートを備えた
反応器に、イオン交換水250gおよび表4に示す本発
明乳化剤5gを仕込み、80℃まで昇温させた。窒素ガ
スにて水中の溶存酸素を除去した後、メタクリル酸メチ
ル200gとアクリル酸メチル50gとを混ぜて得た混
合モノマー250g中の20gと過硫酸カリウム0.5
gとを加えて先行重合させ、次に重合開始10分後よ
り、3時間をかけて残りの混合モノマー230gを滴下
して重合させ、滴下終了後80℃にて1時間熟成を行な
いエマルションを得た。
Use Example 4 In a reactor equipped with a stirrer, a reflux condenser, a thermometer and a dropping funnel, 250 g of ion-exchanged water and 5 g of the emulsifier of the present invention shown in Table 4 were charged and heated to 80 ° C. After removing dissolved oxygen in water with nitrogen gas, 20 g in 250 g of a mixed monomer obtained by mixing 200 g of methyl methacrylate and 50 g of methyl acrylate and 0.5 g of potassium persulfate.
Then, after 10 minutes from the start of the polymerization, 230 g of the remaining mixed monomer is added dropwise to polymerize, and after the completion of the addition, aging is carried out at 80 ° C. for 1 hour to obtain an emulsion. It was

【0046】次に硫酸1%、塩化カルシウム2%を含む
水溶液500mlの中に、上記エマルション100gを
加え、撹拌しポリマーを凝集沈殿させる。この沈殿物を
濾別回収し、乾燥して、ポリマー粉末を得た。このポリ
マーの耐熱着色性を調べるため、230℃に調整した熱
風恒温器に1時間入れ、取り出し冷却後、ポリマーの着
色を調べた。
Next, 100 g of the above emulsion is added to 500 ml of an aqueous solution containing 1% sulfuric acid and 2% calcium chloride, and the mixture is stirred to coagulate and precipitate the polymer. The precipitate was collected by filtration and dried to obtain a polymer powder. In order to examine the heat-resistant coloring property of this polymer, it was put in a hot air thermostat adjusted to 230 ° C. for 1 hour, taken out and cooled, and then the coloring of the polymer was examined.

【0047】その結果を表4に示した。また比較として
表4に示す従来の乳化剤についても、同様のテストを実
施した。
The results are shown in Table 4. For comparison, the same test was performed for the conventional emulsifiers shown in Table 4.

【0048】[0048]

【表4】 [Table 4]

【0049】[0049]

【発明の効果】以上説明したとおり、本発明により、乳
化重合時における安定性を良好にし得、しかも、ポリマ
ーエマルションから得られたポリマー及びポリマーフィ
ルムの耐水性,耐熱性および接着性を著しく改善できる
改良された反応性乳化重合用乳化剤を提供でき、関連産
業界の発展および需要者の利益に寄与する。
As described above, according to the present invention, the stability during emulsion polymerization can be improved, and the water resistance, heat resistance and adhesiveness of the polymer and the polymer film obtained from the polymer emulsion can be remarkably improved. It is possible to provide an improved emulsifier for reactive emulsion polymerization, which contributes to the development of related industries and the interests of consumers.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 下記一般式(I)で表わされる乳化重合
用乳化剤。 【化1】 [式中、R1 は炭素数6〜30のアルキル基である。R
2 は水素原子またはメチル基である。Aは炭素数2〜4
のアルキレン基または置換アルキレン基である。nは1
〜200の整数であり、nが2以上の場合、(AO)n
は、下式(i)で示される、1種の繰返し単位からなる
ホモポリマー 【化2】 であってもよいし、下式(ii)で示される、異なるA
(A1 ,A2 …)を有する2種以上の繰返し単位からな
るブロックポリマーまたはランダムポリマー 【化3】 であってもよい。mは1または2である。Mは水素原
子,アルカリ金属,アンモニウムイオンまたはアルカノ
ールアミン残基である。]
1. An emulsifying agent for emulsion polymerization represented by the following general formula (I). [Chemical 1] [In the formula, R 1 is an alkyl group having 6 to 30 carbon atoms. R
2 is a hydrogen atom or a methyl group. A has 2 to 4 carbon atoms
Is an alkylene group or a substituted alkylene group. n is 1
Is an integer of 200, and when n is 2 or more, (AO) n
Is a homopolymer of the following formula (i) consisting of one type of repeating unit: Or a different A represented by the following formula (ii)
Block polymer or random polymer composed of two or more kinds of repeating units having (A 1 , A 2 ...) May be m is 1 or 2. M is a hydrogen atom, an alkali metal, an ammonium ion or an alkanolamine residue. ]
JP18707293A 1993-06-29 1993-06-29 Emulsifier for emulsion polymerization Expired - Lifetime JP3292551B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18707293A JP3292551B2 (en) 1993-06-29 1993-06-29 Emulsifier for emulsion polymerization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18707293A JP3292551B2 (en) 1993-06-29 1993-06-29 Emulsifier for emulsion polymerization

Publications (2)

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JPH0718009A true JPH0718009A (en) 1995-01-20
JP3292551B2 JP3292551B2 (en) 2002-06-17

Family

ID=16199650

Family Applications (1)

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Country Status (1)

Country Link
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JP2001220403A (en) * 2000-02-08 2001-08-14 Dai Ichi Kogyo Seiyaku Co Ltd Method for producing vinyl chloride resin for paste
EP1950254A2 (en) 2007-01-12 2008-07-30 FUJIFILM Corporation Method of producing an organic pigment fine particle dispersion, and organic pigment fine particles and an organic pigment fine particle dispersion obtained by the method
US7682443B2 (en) * 2007-04-11 2010-03-23 Fujifilm Corporation Organic-pigment aqueous dispersion, method of producing the same, and colored coating composition and coated article using the same
WO2013051205A1 (en) 2011-10-07 2013-04-11 第一工業製薬株式会社 Emulsion polymerization method using reactive emulsifying agent, aqueous polymer dispersion obtained by same, and polymer film
WO2021065593A1 (en) * 2019-09-30 2021-04-08 第一工業製薬株式会社 Surfactant composition, method for producing resin aqueous dispersion, paint, and adhesive

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001220403A (en) * 2000-02-08 2001-08-14 Dai Ichi Kogyo Seiyaku Co Ltd Method for producing vinyl chloride resin for paste
EP1950254A2 (en) 2007-01-12 2008-07-30 FUJIFILM Corporation Method of producing an organic pigment fine particle dispersion, and organic pigment fine particles and an organic pigment fine particle dispersion obtained by the method
US7682443B2 (en) * 2007-04-11 2010-03-23 Fujifilm Corporation Organic-pigment aqueous dispersion, method of producing the same, and colored coating composition and coated article using the same
WO2013051205A1 (en) 2011-10-07 2013-04-11 第一工業製薬株式会社 Emulsion polymerization method using reactive emulsifying agent, aqueous polymer dispersion obtained by same, and polymer film
WO2021065593A1 (en) * 2019-09-30 2021-04-08 第一工業製薬株式会社 Surfactant composition, method for producing resin aqueous dispersion, paint, and adhesive
CN114341200A (en) * 2019-09-30 2022-04-12 第一工业制药株式会社 Surfactant composition, method for producing aqueous resin dispersion, coating material, and adhesive
CN114341200B (en) * 2019-09-30 2023-11-14 第一工业制药株式会社 Surfactant composition, method for producing aqueous resin dispersion, coating material, and adhesive
TWI846949B (en) * 2019-09-30 2024-07-01 日商第一工業製藥股份有限公司 Surfactant composition, method for producing resin aqueous dispersion, coating and adhesive

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