JPS58168615A - Production of 1,2-polybutadiene graft copolymer - Google Patents

Production of 1,2-polybutadiene graft copolymer

Info

Publication number
JPS58168615A
JPS58168615A JP5283982A JP5283982A JPS58168615A JP S58168615 A JPS58168615 A JP S58168615A JP 5283982 A JP5283982 A JP 5283982A JP 5283982 A JP5283982 A JP 5283982A JP S58168615 A JPS58168615 A JP S58168615A
Authority
JP
Japan
Prior art keywords
graft copolymer
pbd
ester
ethylenically unsaturated
unsaturated carboxylic
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.)
Pending
Application number
JP5283982A
Other languages
Japanese (ja)
Inventor
Masaru Ibonai
伊保内 「あ」
Tsutomu Iwaki
勉 岩城
Kensho Ando
安藤 憲昭
Mitsuo Abe
阿部 充雄
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.)
JSR Corp
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Nippon Synthetic Chemical Industry Co Ltd
Japan Synthetic Rubber 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 Nippon Synthetic Chemical Industry Co Ltd, Japan Synthetic Rubber Co Ltd filed Critical Nippon Synthetic Chemical Industry Co Ltd
Priority to JP5283982A priority Critical patent/JPS58168615A/en
Publication of JPS58168615A publication Critical patent/JPS58168615A/en
Pending legal-status Critical Current

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  • Graft Or Block Polymers (AREA)

Abstract

PURPOSE:To obtain the titled copolymer of improved adhesiveness, by copolymerizing 1,2-polybutadiene of a vinyl bond content of above a specified value with an ethylenically unsaturated carboxylic acid and/or its ester in the presence of an aromatic vinyl compound. CONSTITUTION:The titled novel graft copolymer of an improved adhesiveness is obtained by radical-graft-polymerizing a 1,2-polybutadiene trunk component, vinyl bond content >=80%, with an ethylenically unsaturated carboxylic acid and/or its ester (e.g, acrylic acid or its ester, or a combination of at least two members) in the presence of an aromatic vinyl compound (e.g., styrene). Preferably, 100g of the above trunk component is fed per 0.05-10mol of the ethylenically unsaturated carboxylic acid.

Description

【発明の詳細な説明】 本発明はビニル結合金有量が80−以上の1.2−ポリ
ブタジェン(以下、1.!−PBDと略記すル、)を幹
成分とし、エチレン性不飽和カルボン酸および/または
そのエステルを芳香族ビニル化合物の共存下でラジカル
グラフト共重合させることKより6接着性の改善された
新規なグラフト共重合体を製造する方法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention uses 1.2-polybutadiene (hereinafter abbreviated as 1.!-PBD) having a vinyl bond content of 80- or more as a main component, and an ethylenically unsaturated carboxylic acid. The present invention relates to a method for producing a novel graft copolymer having improved adhesion from K by radical graft copolymerization of and/or its ester in the coexistence of an aromatic vinyl compound.

1.2−PBIIJ熱可塑性エラストマーとして包装用
フィルム、履物底材、その他各種成形品として広く用i
られてiるが1分子内の極性が非常に弱vhために他の
重合体などと接着して用いるとき接着性が間層となる場
合がある。
1.2-PBIIJ is widely used as a thermoplastic elastomer in packaging films, footwear sole materials, and various other molded products.
However, since the polarity within one molecule is very weak, when used in adhesion with other polymers, the adhesion may become interlayer.

1、 冨−P B Dの接着性を改良するために、1.
2−PBDのラジカル反応性を利用して極性上ツマ−を
グラフト共重合することは公知であり1例えば無水マレ
イン酸C以下MARと略すe)tたはメタクリル酸メデ
ル(以下、MMAと略す、)tl、!−PBDKクラフ
トした共重合体を1.2−PBDK混合した9、あるい
は接着剤Kfi合して用h”ct、雪−PBDの接着性
を改善することが試与られている。これらの方法によれ
ば1.2−PBDの接着性は多少改良されるが必ずしも
充分とは一見な−。
1. To improve the adhesion of Tomi-PBD, 1.
It is known that the radical reactivity of 2-PBD can be used to graft copolymerize polar monomers. )tl,! It has been attempted to improve the adhesion of snow-PBD by mixing a PBDK-crafted copolymer with 1.2-PBDK9 or by combining it with an adhesive Kfi. According to the results, the adhesion of 1.2-PBD is improved to some extent, but it does not seem to be necessarily sufficient.

本発明者らは、1.2−PBDの接着性をさらに改良す
べく鋭意検討した結果、エチレン性不飽和カルボン酸お
よび/lたはそのエステルl 1. ! −PBDKグ
ラフト共重合するlIKスチレン管共存せしめるととに
よ〕、グラフト率が著しく向上し。
As a result of intensive studies to further improve the adhesive properties of 1.2-PBD, the present inventors found that ethylenically unsaturated carboxylic acid and/or its ester 1. ! -By allowing PBDK graft copolymerization to coexist with the 1IK styrene tube, the grafting rate was significantly improved.

1.3−PBDの接着性が著しく改善されることを見出
し、かかる知見に基づいて本発明に到達した。
It was discovered that the adhesiveness of 1.3-PBD was significantly improved, and the present invention was developed based on this finding.

すなわち本発明は、1.2−PBDを幹成分としエチレ
ン性不飽和カルボン酸および/17tFiそのエステル
を芳香族ビニル化合物の共存下でラジカルグラフト共重
合せしめることを特徴とする新規グラフト共重合体の製
造法を提供するものである。
That is, the present invention provides a novel graft copolymer comprising 1.2-PBD as a main component and an ethylenically unsaturated carboxylic acid and /17tFi ester thereof radically graft copolymerized in the coexistence of an aromatic vinyl compound. It provides a manufacturing method.

本発明の新規グラフト共重合体の幹成分は、ビニル結合
金有量が80−以上の1.2− P B Dである。ビ
ニル結合金有量が8011未満ではグラフト反応性が低
下し1本発明の目的とする新規グラフト共重合体が得ら
れなi。
The main component of the novel graft copolymer of the present invention is 1.2-PBD having a vinyl bond content of 80- or more. If the vinyl bond metal content is less than 8,011, the graft reactivity decreases and the novel graft copolymer targeted by the present invention cannot be obtained.

本発明において、上記1.2− P B Dにグラフト
する極性上ツマ−は、エチレン性不飽和カルボン酸およ
び/172:/Iiそのエステルで1例えばアクリル酸
、メタクリル酸、イタプン酸、マレイン酸。
In the present invention, the polar supermers grafted onto the 1.2-PBD are ethylenically unsaturated carboxylic acids and /172:/Ii esters thereof, such as acrylic acid, methacrylic acid, itaponic acid, and maleic acid.

フマル酸、無水マレイン酸またはこれらのアルキルアル
コールエステルなどが単独で、あるn112種以上組合
わせて使用される。
Fumaric acid, maleic anhydride, or alkyl alcohol esters thereof may be used alone or in combination of two or more types.

本発明のクラフト共重合において共存せしめる芳香族ビ
ニル化合物としては1例えばスチレン。
Examples of the aromatic vinyl compound that can be coexisting in the kraft copolymerization of the present invention include styrene.

a−メtルスtレン、ビニルナフタレン、ビニルアント
ラ七yなどが用いられる。
A-metal t-rene, vinylnaphthalene, vinyl anthra-7y, etc. are used.

本発明において幹成分である1、 2− P B Dと
エチレン性不飽和カルボン酸および/またはそのエステ
ルとの仕込比率は、41に制限はなiが、1.2−PB
DIO@fK対して極性モノv−o、os〜10モルの
範囲で用いるのが適当である。
In the present invention, the charging ratio of 1,2-PBD and ethylenically unsaturated carboxylic acid and/or its ester, which is the main component, is not limited to 41, but 1.2-PB
It is appropriate to use the polar monopolymer in a range of vo, os to 10 moles relative to DIO@fK.

また、エチレン性不飽和カルボン酸および/ま良はその
エステルと芳香族ビニル化合物の仕込比率は、エチレン
性不飽和カルボン酸および/またはそのエステに1モル
に対して芳香族ビニル化合物を0.1〜!モルの範囲で
用いるのが好ましi。
The ratio of the aromatic vinyl compound to the ethylenically unsaturated carboxylic acid and/or its ester is 0.1 per mole of the ethylenically unsaturated carboxylic acid and/or its ester. ~! It is preferable to use i in a molar range.

芳香族ビニル化合物が(L1モル未満では芳香族とニル
化合物を共存させ友ことによるグラフト率向上効果が不
充分なために接着性改善効果が実質的に得られず、一方
意モルより多iと芳香族ビニル4″4′1“pzfvy
fk″f:jlll!N*″f y @ k I U 
  1/またはそのエステルのグラフト反応が抑制され
目的とすゐ接着性が低下する。
If the aromatic vinyl compound is less than 1 mol (L), the effect of improving the grafting rate due to the coexistence of the aromatic vinyl compound and the vinyl compound is insufficient, so that the effect of improving adhesion is not substantially obtained; aromatic vinyl 4″4′1″pzfvy
fk″f:jllll!N*″f y @ k I U
The grafting reaction of 1/or its ester is suppressed and the desired adhesion is reduced.

本発明のグラフト共重合体の製造VCTo九っては。Production of the graft copolymer of the present invention VCTo9.

有機過酸化物、アゾ化合物、レドツタス開始剤など一般
に公知のラジカル反応開始剤すべてを用いることができ
1重合方法も懸濁重合、乳化重合。
All commonly known radical reaction initiators such as organic peroxides, azo compounds, and redotus initiators can be used, and the polymerization methods include suspension polymerization and emulsion polymerization.

溶液重合、沈澱重合など一般に公知の重合方法を採用す
ることができる。
Generally known polymerization methods such as solution polymerization and precipitation polymerization can be employed.

本発明で得られるグラフト共重合体は、そのまま他の樹
脂などとの接着に用いても充分な接着性を発揮するが、
他の一般の熱可塑性樹脂に混合して接着性の改質剤とし
て用いることもできる。たとえば、1.!−PBDK混
合して、1.!−PBDの接着性を改善することができ
る。また1合成ゴム系接着剤に混合して1合成ゴム系接
着剤の接着強ft−向上させる事ができる。さらに1合
成ゴム系接着剤を用iて1.2− P B Dを他の材
料と接着する場合に1本発明の新規グラフト共重合体の
有機溶剤溶液を1. M−P B D用プツイマーとし
て有効に用−ることができる。
The graft copolymer obtained in the present invention exhibits sufficient adhesive properties even when used as is for adhesion with other resins, etc.
It can also be used as an adhesive modifier by mixing with other general thermoplastic resins. For example, 1. ! - Mix PBDK, 1. ! - The adhesion of PBD can be improved. It can also be mixed with a synthetic rubber adhesive to improve the adhesion strength (ft) of the synthetic rubber adhesive. Furthermore, when adhering 1.2-PBD to other materials using a synthetic rubber adhesive, an organic solvent solution of the novel graft copolymer of the present invention is added to 1. It can be effectively used as a push swimmer for M-PBD.

以下に実施例、比較例を挙げて本発明をさらに具体的に
説明する。
The present invention will be explained in more detail by giving examples and comparative examples below.

実施例1〜3および比較例1 ビニル結合を90−以上含有するVンジオタクテック1
.z−PBD(J8RR111I20:日本合成ゴム製
)10fをToamのテトラヒドロフランに#l解し、
これに第1表に記す飯のMAR,スチレンおよびアゾビ
スイソブチロニトリル0.03モルを加え、さらにテト
ラヒドロフランを追加して全量を1tKLFt後、1!
!拌しながら60℃で重合を行なった後1重合溶液を大
量のメタノール中に混合し、グラフト共重合体を凝固回
収した。
Examples 1 to 3 and Comparative Example 1 V-Ndiotactic 1 containing 90 or more vinyl bonds
.. 10f of z-PBD (J8RR111I20: Japan Synthetic Rubber) was dissolved in Toam's tetrahydrofuran,
To this was added the rice MAR, styrene, and 0.03 mol of azobisisobutyronitrile listed in Table 1, and then added tetrahydrofuran to bring the total amount to 1tKLFt, and then 1!
! After polymerization was carried out at 60° C. with stirring, the first polymerization solution was mixed in a large amount of methanol, and the graft copolymer was coagulated and recovered.

このグラフト共重合体のキャラクタリゼーションの結果
は第1IIに示す通9であった。なお、第1表における
グラフト率およびグラフト効率はそれぞれ次式によって
算出した。
The results of characterization of this graft copolymer were as shown in Section 1II. Note that the grafting rate and grafting efficiency in Table 1 were calculated using the following formulas.

また、x、*−PBD(J8RRBszo)t o o
重量部に対し、実施例1〜3および比較例1で得られた
グラフト共重合体2s重量部をプラベンダープラストグ
ラフを用匹て混練した後、プレス成形によす厚さ2■の
V−)に成形し9合成ゴム系接着剤(ノーテープ工業製
: *5so)1用いて、塩化ビニルレザーと接着し、
JI8 K  ll301に準じて接着はく離試験を行
なった結果を併せて第1表に示す。
Also, x, *-PBD(J8RRBszo) to o
After kneading 2s parts by weight of the graft copolymers obtained in Examples 1 to 3 and Comparative Example 1 using a Prabender Plastograph, press molding was performed to form a V- ) and adhered to vinyl chloride leather using synthetic rubber adhesive (No Tape Kogyo: *5so)1.
Table 1 also shows the results of an adhesive peel test according to JI8 K II 301.

ナ>接着の際、1.2−PBD(J8RBB  @20
)とグラフト共重合体からなろ混合シー)4Ctil、
!−PBD用プライマー(ノーテープ工業製:RB−1
1)を、また塩化ビニルレザーには塩化ビニルレザー用
プライマー(ノーテープ工業製:ハール)を常法通や使
用した。
When gluing, use 1.2-PBD (J8RBB @20
) and graft copolymer to Naro mixed sea) 4Ctil,
! -Primer for PBD (manufactured by No Tape Industries: RB-1
1), and a primer for vinyl chloride leather (Haru, manufactured by No-Tape Kogyo) was used in a conventional manner for vinyl chloride leather.

第  1  表 これらの結果から、スチレンを共存させるととによりグ
ラフト率が著しく向上し、かつ1.2−PBDの接着性
改善K11l著な効果があることが明らかである。
Table 1 From these results, it is clear that the coexistence of styrene significantly improves the grafting rate and has a significant effect on improving the adhesion of 1,2-PBD.

実施例4 1、z−PBD(J8RRB  I*0)toflべy
イン700−に溶解し、MMAI4F、スチレン1$7
tおよびアゾビスイソブチロニトリル4.9fを添加し
、さらにベンゼンを追加し全量を1tとした後、・0℃
で2時間重合した後、全量を大量のメタノール中に/!
合し、グラフト共重合体を凝固回収した。ここで得られ
たグラフト共重合体のグラフト率Fisssであった。
Example 4 1, z-PBD (J8RRB I*0) tofly
Dissolved in In700-, MMAI4F, styrene 1$7
After adding t and 4.9 f of azobisisobutyronitrile and further adding benzene to bring the total amount to 1 t, ・0℃
After polymerizing for 2 hours, the entire amount was poured into a large amount of methanol.
The graft copolymer was coagulated and recovered. The graft ratio of the graft copolymer obtained here was Fisss.

つぎに、ここで得られたグラフト共重合体を用iて以下
の3つの場合について接着性を評価した。
Next, the adhesiveness of the graft copolymer obtained here was evaluated in the following three cases.

1)  1.1−PBDとブレンドした場合1、意−P
BD(J8RRB  8雪0)100重量部に対して、
上記のグラフト共重合体2s重量部をプラベンダープラ
ストグラフを用iて混線し。
1) When blended with 1.1-PBD 1, meaning-P
For 100 parts by weight of BD (J8RRB 8 snow 0),
2 parts by weight of the above graft copolymer was mixed using a Prabender Plastograph.

プレス成形によって厚さ2鱈のシートに成形し。Formed into a 2-cod thick sheet using press molding.

打抜きKより幅15傷のタンザク状の試験片を作成した
。この試験片と塩化ビニルレザーを合成ゴム系接着剤(
ノーテープ工業製二番會・O)を用いて接着し、JI8
  K  gsox  に準じて接着はく離試験を行な
ったところ、接着はく離強度は3.1kl f /aI
であった。なお接着の際、1.2−PBD(J8RRB
  810)とグラフト共重合体との混合シートには1
. ! −P B D用プライマー(ノーテープ工業製
:RB−11)を、tた塩化ビニルレゾ−には塩化ビニ
ルレザー用プライマー(ノーテープ工業製:パール)を
常法通9用いた。
A tanzak-shaped test piece with a width of 15 scratches was prepared by punching K. This test piece and PVC leather were bonded together using a synthetic rubber adhesive (
Glue using No Tape Kogyo Nibankai O) and JI8
When an adhesive peel test was conducted according to Kgsox, the adhesive peel strength was 3.1 kl f /aI
Met. When bonding, use 1.2-PBD (J8RRB
810) and the graft copolymer contains 1
.. ! A primer for PBD (RB-11, manufactured by No Tape Industries) was used in a conventional manner, and a primer for vinyl chloride leather (Pearl, manufactured by No Tape Industries) was used for vinyl chloride resin.

2)合成ゴム系接着剤へ添加した場合 上記合成ゴム系接着剤(参5SO)の固形分に対してグ
ラフト共重合体が8重量−となるように添加したものを
接着剤として用いて、1)K準じた方法で1.!−PB
D(J8RRB  820)のレートと塩化ビニルレゾ
−を接着したところ、接着はく離強度は3.意klf/
amであった。
2) When added to a synthetic rubber adhesive Add the graft copolymer in an amount of 8% by weight to the solid content of the synthetic rubber adhesive (Reference 5SO) as an adhesive. ) 1. in a method similar to K. ! -PB
When the rate of D (J8RRB 820) and vinyl chloride resin were bonded, the adhesive peel strength was 3. meaning klf/
It was am.

上記のグラフト共重合体3tをトルエン117fK溶解
した溶液を、  l、z−PBD(J8RRBSXO)
のV−)と塩化ビニルレザーを合成ゴム系接着剤(参1
86)を用iて接着する際のJ8RRB K対するプラ
イマーとして既存の1.2− PBD用プクィマー(R
B−11)の替りに用いた場合、接着はく離強度は10
 #f/amであった。
A solution of 3t of the above graft copolymer dissolved in 117fK of toluene was prepared as l,z-PBD (J8RRBSXO).
V-) and vinyl chloride leather using a synthetic rubber adhesive (see 1).
The existing 1.2-PBD Pukimar (R
When used instead of B-11), the adhesive peel strength is 10
It was #f/am.

比較例3 実施例4におφてスチレyを添加せずに重合金行なって
得たグラフト共重合体はグラフト率1s−であった。
Comparative Example 3 A graft copolymer obtained by carrying out polymerization in Example 4 without adding styrene y had a graft ratio of 1 s-.

このグラフト共重合体を用いて実施例4と同様3つの場
合につiて接着性を評価したところ、接着はく離強度は
以下の通りであった。
Using this graft copolymer, the adhesiveness was evaluated in three cases as in Example 4, and the adhesive peel strength was as follows.

1)  x、z−PBDとブレンドした場合  24 
#f/as2) 合成ゴム系接着剤へ添加した場合  
23 #f/am3) プライマーとして使用した場合
 22@f/。
1) When blended with x, z-PBD 24
#f/as2) When added to synthetic rubber adhesive
23 #f/am3) When used as a primer 22@f/.

実施例4と比較例3の結果から、1.2−PBDKMM
At共重合する際にスチレンを共存せしめて得られたグ
ラフト共重合体が、1.2−PBDの接着性改善に有効
であることが明らかである。
From the results of Example 4 and Comparative Example 3, 1.2-PBDKMM
It is clear that a graft copolymer obtained by coexisting styrene during At copolymerization is effective in improving the adhesion of 1,2-PBD.

Claims (1)

【特許請求の範囲】[Claims] ビニル結合金有量が8016以上の1.2−ポリブタジ
ェンにエチレン性不飽和カルボン酸および/またはその
エステルを芳香族ビニル化合物の共存下でラジカルグラ
フト共重合せしめることを特徴とする1、3−ポリブタ
ジェングラフト共重合体の製造法。
A 1,3-polymer characterized by radical graft copolymerization of an ethylenically unsaturated carboxylic acid and/or its ester to 1,2-polybutadiene having a vinyl bond content of 8016 or more in the coexistence of an aromatic vinyl compound. A method for producing a butadiene graft copolymer.
JP5283982A 1982-03-31 1982-03-31 Production of 1,2-polybutadiene graft copolymer Pending JPS58168615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5283982A JPS58168615A (en) 1982-03-31 1982-03-31 Production of 1,2-polybutadiene graft copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5283982A JPS58168615A (en) 1982-03-31 1982-03-31 Production of 1,2-polybutadiene graft copolymer

Publications (1)

Publication Number Publication Date
JPS58168615A true JPS58168615A (en) 1983-10-05

Family

ID=12926010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5283982A Pending JPS58168615A (en) 1982-03-31 1982-03-31 Production of 1,2-polybutadiene graft copolymer

Country Status (1)

Country Link
JP (1) JPS58168615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197713A (en) * 1984-01-23 1985-10-07 Japan Synthetic Rubber Co Ltd Thermoplastic resin composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197713A (en) * 1984-01-23 1985-10-07 Japan Synthetic Rubber Co Ltd Thermoplastic resin composition
JPS6367818B2 (en) * 1984-01-23 1988-12-27 Japan Synthetic Rubber Co Ltd

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