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JPH08143626A - Method for producing cationic polymer - Google Patents

Method for producing cationic polymer

Info

Publication number
JPH08143626A
JPH08143626A JP30961394A JP30961394A JPH08143626A JP H08143626 A JPH08143626 A JP H08143626A JP 30961394 A JP30961394 A JP 30961394A JP 30961394 A JP30961394 A JP 30961394A JP H08143626 A JPH08143626 A JP H08143626A
Authority
JP
Japan
Prior art keywords
polymer
unit
vinylcarboxylic acid
cationic polymer
acid amide
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
JP30961394A
Other languages
Japanese (ja)
Other versions
JP3442514B2 (en
Inventor
Masayuki Murano
正幸 村野
Shoji Matsushima
尚司 松島
Michiyo Kubo
美智代 久保
Shigeru Sato
茂 佐藤
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.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries Ltd
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Filing date
Publication date
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Priority to JP30961394A priority Critical patent/JP3442514B2/en
Publication of JPH08143626A publication Critical patent/JPH08143626A/en
Application granted granted Critical
Publication of JP3442514B2 publication Critical patent/JP3442514B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

(57)【要約】 【構成】N−ビニルカルボン酸アミド単位又はN−ビニ
ルカルボン酸イミド単位を有する重合体に、アルカリ条
件下、ハロゲン化ベンジルを反応させることを特徴とす
るビニルアミン単位とN−ベンジルビニルアミン単位を
有するカチオン性重合体の製造方法。 【効果】本発明によれば、N−ビニルカルボン酸アミド
単位又はN−ビニルカルボン酸イミド単位を有する重合
体より、ビニルアミン単位とN−ベンジルビニルアミン
単位を有するカチオン性重合体を1段階の反応で製造す
ることができ、反応時間、工数、ユーティリティーなど
を節減することができる。
(57) [Summary] [Structure] A polymer having an N-vinylcarboxylic acid amide unit or an N-vinylcarboxylic acid imide unit is reacted with a benzyl halide under an alkaline condition. A method for producing a cationic polymer having a benzylvinylamine unit. According to the present invention, a one-step reaction of a cationic polymer having a vinylamine unit and an N-benzylvinylamine unit from a polymer having an N-vinylcarboxylic acid amide unit or an N-vinylcarboxylic acid imide unit. It is possible to reduce the reaction time, man-hours, utility, etc.

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、カチオン性重合体の製
造方法に関する。さらに詳しくは、本発明は、排水の凝
集剤、汚泥の脱水剤、紙用添加剤などとして優れた効果
を示す、疎水性を有するカチオン性重合体の簡便な製造
方法に関するものである。
FIELD OF THE INVENTION The present invention relates to a method for producing a cationic polymer. More specifically, the present invention relates to a simple method for producing a cationic polymer having hydrophobicity, which exhibits excellent effects as a coagulant for wastewater, a dehydrating agent for sludge, an additive for paper, and the like.

【0002】[0002]

【従来の技術】都市下水し尿処理や工場排水などの活性
汚泥処理が広く行われているが、発生する有機汚泥は含
水率が高いので、廃棄、焼却及び肥料化するために、効
率よく脱水処理することが必要である。特に、近年、下
水道の整備などにより、汚泥の発生量が増加しているこ
とや、汚泥中の有機物量の増加、腐敗などによる汚泥性
状の悪化が進んでいることから、汚泥の脱水処理に用い
た場合、凝集力にすぐれ、強度の高い凝集フロックを与
え、汚泥中の懸濁物質が分離液中に漏出することがな
く、機械脱水により含水率が低くかつ剥離性の良好な脱
水ケーキを得ることができ、安定した汚泥の脱水処理が
可能な高分子凝集剤が求められている。本発明者らは、
かかる好ましい性質を有する高分子凝集剤を開発すべく
研究を重ね、先に、N−ベンジルビニルアミン単位を全
構成単位に対し2〜30モル%の割合で有するポリマー
からなる高分子凝集剤が、上記の性質を有することを見
いだした。これまで、下記構造単位[1]
BACKGROUND ART Activated sludge treatment such as municipal sewage treatment and sewage treatment and factory effluent is widely used. However, since the organic sludge generated has a high water content, it is efficiently dehydrated for disposal, incineration and fertilization. It is necessary to. Especially in recent years, the amount of sludge generated has increased due to the development of sewerage systems, the amount of organic matter in sludge has increased, and sludge properties have deteriorated due to decay, etc. If it is, it gives a flocculating floc with high cohesive strength and high strength, the suspended matter in the sludge does not leak into the separation liquid, and the dehydration cake with low water content and good peelability is obtained by mechanical dehydration. There is a demand for a polymer flocculant capable of performing stable dehydration treatment of sludge. We have
Studies have been conducted to develop a polymer flocculant having such preferable properties. First, a polymer flocculant composed of a polymer having N-benzylvinylamine units in a proportion of 2 to 30 mol% with respect to all constitutional units has been prepared. It has been found to have the above properties. So far, the following structural unit [1]

【化1】 を有するカチオン性重合体の合成方法は、下記に示すよ
うに、N−ビニルカルボン酸アミド単位[2]
Embedded image The method for synthesizing the cationic polymer having the following is as follows: N-vinylcarboxylic acid amide unit [2]

【化2】 (ただし、式中、Rは水素又は炭素数1〜4のアルキル
基である。)を有する重合体を合成した後、塩酸などの
鉱酸を用いて加水分解を行い、ビニルアミン単位を有す
る重合体[3]
Embedded image (In the formula, R is hydrogen or an alkyl group having 1 to 4 carbon atoms.) A polymer having a vinylamine unit is obtained by synthesizing a polymer and then hydrolyzing it with a mineral acid such as hydrochloric acid. [3]

【化3】 (ただし、式中、Xはハロゲンである。)を得、その
後、アルカリ存在下にハロゲン化ベンジルと反応してN
−ベンジル化し、[1]の構造単位を有する重合体を得
るのが一般的である。この構造を有する重合体はすぐれ
た高分子凝集剤であるが、上記の合成方法では、N−ビ
ニルカルボン酸アミド単位を有する重合体を酸で加水分
解した後、アルカリ中でベンジル化を行うため、2段階
の反応が必要となり、製造に手間、労力及び合成費用が
かかるため、より簡便な製造方法が求められていた。
Embedded image (In the formula, X is halogen.), And then reacted with benzyl halide in the presence of alkali to give N.
-Generally benzylated to obtain a polymer having the structural unit [1]. A polymer having this structure is an excellent polymer flocculant, but in the above synthesis method, the polymer having an N-vinylcarboxylic acid amide unit is hydrolyzed with an acid and then benzylated in an alkali. Since a two-step reaction is required, which requires labor, labor and synthetic cost for production, a simpler production method has been demanded.

【0003】[0003]

【発明が解決しようとする課題】本発明は、ビニルアミ
ン単位及びN−ベンジルビニルアミン単位を有するカチ
オン性重合体を、N−ビニルカルボン酸アミド単位又は
N−ビニルカルボン酸イミド単位を有する重合体より、
1段階の反応で容易かつ簡便に得ることができる製造方
法を提供することを目的としてなされたものである。
DISCLOSURE OF THE INVENTION According to the present invention, a cationic polymer having a vinylamine unit and an N-benzylvinylamine unit is prepared from a polymer having an N-vinylcarboxylic acid amide unit or an N-vinylcarboxylic acid imide unit. ,
The purpose of the present invention is to provide a production method which can be easily and conveniently obtained by a one-step reaction.

【0004】[0004]

【課題を解決するための手段】本発明者らは、上記の課
題を解決すべく鋭意研究を重ねた結果、N−ビニルカル
ボン酸アミド単位又はN−ビニルカルボン酸イミド単位
を有する重合体をアルカリ条件下にハロゲン化ベンジル
と反応することにより、その目的を達成し得ることを見
いだし、この知見に基づいて本発明を完成するに至っ
た。すなわち、本発明は、N−ビニルカルボン酸アミド
単位又はN−ビニルカルボン酸イミド単位を有する重合
体に、アルカリ条件下、ハロゲン化ベンジルを反応させ
ることを特徴とするビニルアミン単位とN−ベンジルビ
ニルアミン単位を有するカチオン性重合体の製造方法を
提供するものである。
As a result of intensive studies to solve the above problems, the present inventors have found that a polymer having an N-vinylcarboxylic acid amide unit or an N-vinylcarboxylic acid imide unit can be treated with an alkali. It was found that the object can be achieved by reacting with a benzyl halide under the conditions, and the present invention has been completed based on this finding. That is, the present invention is characterized by reacting a polymer having an N-vinylcarboxylic acid amide unit or an N-vinylcarboxylic acid imide unit with a benzyl halide under alkaline conditions. A method for producing a cationic polymer having units is provided.

【0005】本発明に用いるN−ビニルカルボン酸アミ
ド単位又はN−ビニルカルボン酸イミド単位を有する重
合体とは、N−ビニルカルボン酸アミド若しくはN−ビ
ニルカルボン酸イミドの単独重合体又はN−ビニルカル
ボン酸アミド若しくはN−ビニルカルボン酸イミドとこ
れらと共重合可能な他の単量体との共重合体である。N
−ビニルカルボン酸アミドとしては、例えば、N−ビニ
ルホルムアミド、N−ビニルアセトアミド、N−ビニル
プロピオンアミド、N−ビニルブチルアミド、N−ビニ
ルバレルアミドなどを挙げることができる。また、N−
ビニルカルボン酸イミドとしては、例えば、N−ビニル
こはく酸イミド、N−ビニルグルタルイミドなどを挙げ
ることができる。本発明に用いるN−ビニルカルボン酸
アミド又はN−ビニルカルボン酸イミドと共重合可能な
他の単量体としては、適当な単量体反応性比を有するも
のであれば制限なく使用することができ、例えば、(メ
タ)アクリルアミド、スチレン、メチル(メタ)アクリ
レート、エチル(メタ)アクリレート、酢酸ビニル、
(メタ)アクリロニトリル、N−ビニルピロリドンなど
のノニオン性単量体、(メタ)アクリル酸若しくはその
アルカリ金属塩、又はビニルスルホン酸、2−アクリル
アミド−2−メチルプロパンスルホン酸、スチレンスル
ホン酸などのスルホン基を有する単量体若しくはそのア
ルカリ金属塩などのアニオン性単量体、ジメチルアミノ
エチル(メタ)アクリレート、ジメチルアミノプロピル
(メタ)アクリルアミドの三級塩若しくは四級アンモニ
ウム塩などのカチオン性単量体を挙げることができる。
N−ビニルカルボン酸アミド若しくはN−ビニルカルボ
ン酸イミドの単独重合、又はこれらと他の単量体との共
重合の方法には特に制限はなく、使用する単量体及び生
成する重合体の溶解性などに応じて、溶液重合、懸濁重
合、乳化重合などを選ぶことができる。例えば、使用す
る単量体が水に可溶であって生成する重合体も水に十分
な親和性を有する場合には、水溶液重合が可能であり、
単量体及び水溶性重合開始剤を水に溶解し、加熱するこ
とによって重合体を得ることができる。水溶液重合によ
り得られた重合体は、そのまま又は単離したのち、アル
カリ条件下のハロゲン化ベンジルとの反応に供すること
ができる。また、使用する単量体の水への溶解度が小さ
いときは、懸濁重合、乳化重合などを用いることができ
る。乳化重合においては、水中に単量体、乳化剤、水溶
性の重合開始剤などを加え、撹拌下に加熱することによ
り重合体を得る。
The polymer having N-vinyl carboxylic acid amide units or N-vinyl carboxylic acid imide units used in the present invention means N-vinyl carboxylic acid amide or N-vinyl carboxylic acid imide homopolymer or N-vinyl. It is a copolymer of a carboxylic acid amide or N-vinyl carboxylic acid imide and another monomer copolymerizable therewith. N
Examples of the -vinylcarboxylic acid amide include N-vinylformamide, N-vinylacetamide, N-vinylpropionamide, N-vinylbutyramide, N-vinylvaleramide and the like. Also, N-
Examples of vinyl carboxylic acid imides include N-vinyl succinimide and N-vinyl glutarimide. As the other monomer copolymerizable with the N-vinylcarboxylic acid amide or N-vinylcarboxylic acid imide used in the present invention, any monomer having an appropriate monomer reactivity ratio may be used without limitation. Can be, for example, (meth) acrylamide, styrene, methyl (meth) acrylate, ethyl (meth) acrylate, vinyl acetate,
(Meth) acrylonitrile, nonionic monomers such as N-vinylpyrrolidone, (meth) acrylic acid or its alkali metal salts, or sulfones such as vinylsulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, and styrenesulfonic acid. Group-containing monomer or anionic monomer such as alkali metal salt thereof, cationic monomer such as dimethylaminoethyl (meth) acrylate, dimethylaminopropyl (meth) acrylamide tertiary salt or quaternary ammonium salt Can be mentioned.
There is no particular limitation on the method of homopolymerizing N-vinylcarboxylic acid amide or N-vinylcarboxylic acid imide, or the copolymerization of these with other monomers, and the dissolution of the monomer used and the polymer produced. Solution polymerization, suspension polymerization, emulsion polymerization and the like can be selected according to the properties. For example, when the monomer used is soluble in water and the resulting polymer also has sufficient affinity for water, aqueous solution polymerization is possible,
A polymer can be obtained by dissolving the monomer and the water-soluble polymerization initiator in water and heating. The polymer obtained by aqueous solution polymerization can be subjected to reaction with benzyl halide under alkaline conditions as it is or after isolation. Further, when the monomer used has a low solubility in water, suspension polymerization, emulsion polymerization or the like can be used. In emulsion polymerization, a polymer is obtained by adding a monomer, an emulsifier, a water-soluble polymerization initiator and the like to water and heating with stirring.

【0006】本発明においては、N−ビニルカルボン酸
アミド単位又はN−ビニルカルボン酸イミド単位を有す
る重合体を、アルカリ条件下にハロゲン化ベンジルと反
応させる。アルカリの使用量及び種類は、酸アミド単位
又は酸イミド単位の所望の加水分解の程度、ハロゲン化
ベンジルの添加量、反応条件などにより選ぶことができ
る。アルカリとしては、例えば、水酸化ナトリウム、水
酸化カリウム、炭酸ナトリウムなどを使用することがで
きる。ハロゲン化ベンジルとしては、塩化ベンジルを特
に好適に使用することができる。反応条件には特に制限
はないが、例えば、重合体、アルカリ及びハロゲン化ベ
ンジルを水に溶解又は分散し、40〜100℃に加熱す
ることにより行うことができる。この反応により、N−
ビニルカルボン酸アミド単位又はN−ビニルカルボン酸
イミド単位は、下記の式[4]及び[5]に示すよう
に、ビニルアミン単位及びN−ベンジルビニルアミン単
位となるが、一部が酸アミド又は酸イミド単位のまま残
る場合もある。なお、式[4]及び[5]は、これらの
重合体が、それぞれ式中の3種の構造単位を有すること
を示すものであり、これらの重合体がブロック共重合体
的構造を有することを意味するものではない。
In the present invention, a polymer having N-vinylcarboxylic acid amide units or N-vinylcarboxylic acid imide units is reacted with benzyl halide under alkaline conditions. The amount and type of alkali used can be selected depending on the desired degree of hydrolysis of the acid amide unit or the acid imide unit, the amount of benzyl halide added, the reaction conditions, and the like. As the alkali, for example, sodium hydroxide, potassium hydroxide, sodium carbonate or the like can be used. Benzyl chloride can be particularly preferably used as the benzyl halide. The reaction conditions are not particularly limited, but the reaction can be carried out, for example, by dissolving or dispersing the polymer, alkali and benzyl halide in water and heating to 40 to 100 ° C. By this reaction, N-
The vinyl carboxylic acid amide unit or the N-vinyl carboxylic acid imide unit is a vinyl amine unit and an N-benzyl vinyl amine unit, as shown in the following formulas [4] and [5]. It may remain as an imide unit. The formulas [4] and [5] show that these polymers each have three types of structural units in the formula, and these polymers have a block copolymer structure. Does not mean.

【化4】 (ただし、式中、R1は水素又は炭素数1〜4のアルキ
ル基である。)
[Chemical 4] (However, in the formula, R 1 is hydrogen or an alkyl group having 1 to 4 carbon atoms.)

【化5】 (ただし、式中、R2はエチレン基、プロピレン基又は
トリメチレン基である。)本発明によれば、N−ビニルカ
ルボン酸アミド単位又はN−ビニルカルボン酸イミド単
位を有する重合体より、1段階の反応で一挙にビニルア
ミン単位及びN−ベンジルビニルアミン単位を有するカ
チオン性重合体を製造することができる。さらに必要に
応じて、このカチオン性重合体に塩酸などの鉱酸を添加
してビニルアミン単位をアミンの酸性塩とすることがで
きる。上記の反応により得られたビニルアミン単位及び
N−ベンジルビニルアミン単位を有するカチオン性重合
体の水溶液は、そのまま排水の凝集剤、汚泥の脱水剤、
紙用添加剤などとして使用することができ、あるいはカ
チオン性重合体の水溶液をアセトンなどの有機溶媒と混
合し、カチオン性重合体を沈殿せしめた後、分離乾燥し
て粉末化することができる。本発明方法により得られる
カチオン性重合体のベンジル化率、すなわち、重合体中
の全単量体単位に対するN−ベンジルビニルアミン単位
の割合は、1H−NMR測定を行い、7ppm付近のベンゼ
ン環のプロトンのシグナルと2ppm付近の主鎖メチレン
のプロトンのシグナルの面積比により決定することがで
きる。
Embedded image (However, in the formula, R 2 is an ethylene group, a propylene group, or a trimethylene group.) According to the present invention, one step is obtained from a polymer having an N-vinylcarboxylic acid amide unit or an N-vinylcarboxylic acid imide unit. By the reaction of, a cationic polymer having vinylamine units and N-benzylvinylamine units can be produced all at once. Further, if necessary, a mineral acid such as hydrochloric acid may be added to this cationic polymer to convert the vinylamine unit into an acid salt of amine. An aqueous solution of a cationic polymer having a vinylamine unit and an N-benzylvinylamine unit obtained by the above reaction is used as it is as an aggregating agent for wastewater, a dehydrating agent for sludge,
It can be used as an additive for paper or the like, or can be mixed with an aqueous solution of a cationic polymer and an organic solvent such as acetone to precipitate the cationic polymer, then separated and dried to be powdered. The benzylation rate of the cationic polymer obtained by the method of the present invention, that is, the ratio of N-benzylvinylamine units to all monomer units in the polymer, is measured by 1 H-NMR, and the benzene ring around 7 ppm is measured. It can be determined by the area ratio of the signal of the proton of 1 to the signal of the proton of the main chain methylene near 2 ppm.

【0007】[0007]

【実施例】以下に、実施例を挙げて本発明をさらに詳細
に説明するが、本発明はこれらの実施例によりなんら限
定されるものではない。 実施例1 (1)ベースポリマーの合成 N−ビニルホルムアミド204.8gを蒸留水に溶解し
て1000mlとし、pHを7に調整した。窒素ガス導入
管、ジムロート冷却管を備えた2000mlセパラブルフ
ラスコにこのモノマー水溶液を移し、30分間窒素バブ
リングを行ったのち、2,2'−アゾビスシアノアミジノ
プロパン・塩酸塩0.54gを加え、50℃にて10時
間重合を行った。生成した含水ゲル状ポリマーを多量の
アセトン中に投入し、脱水、粉砕後、白色粉末ポリマー
として、ポリ(N−ビニルホルムアミド)を得た。収率
は100%であった(このポリマーをポリマーAとす
る)。 (2)ポリマーAの加水分解及びベンジル化 (1)で得たポリマーA5.0gを、撹拌機を備えたセパ
ラブルフラスコに入れ、蒸留水170mlを加え撹拌し、
溶解した。次いで、15重量%水酸化ナトリウム水溶液
28.7gを加えた後、50℃に昇温し、さらに塩化ベ
ンジル0.8gを加え、撹拌しつつ、50℃で24時間
反応した。反応終了後、(1)と同様にして、アセトンに
より脱水、精製、粉末化してポリマー5.5gを得た
(このポリマーをポリマーBとする)。 (3)ポリマーBの構造の決定 ポリマーBについて1H−NMR測定を行い、7ppm付近
のベンゼン環のプロトンのシグナルと2ppm付近の主鎖
メチレンのプロトンのシグナルの面積比よりベンジル化
率を求めた。ベンジル化率は5.6モル%であった。ま
た、ポリマーBのpH=3におけるコロイド当量値は5.
4meq/gであり、ポリマーBはビニルアミン単位33
モル%を有していた。 比較例1 (1)ポリ(N−ビニルホルムアミド)の加水分解 実施例1(1)で得たポリマーA53.3gを、撹拌機、
冷却管を備えたセパラブルフラスコに入れ、蒸留水80
0mlを加え、撹拌し、溶解した。次いで、35重量%濃
塩酸117.6gを加え、60℃に昇温して、撹拌下1
0時間加水分解を行った。反応物を多量のアセトン中に
入れ、脱水、粉砕後、白色粉末ポリマーとして、ポリ
(N−ビニルホルムアミド)の部分加水分解物55.9
gを得た(このポリマーをポリマーCとする)。ポリマ
ーCのpH=3のときのコロイド当量値は5.4meq/gで
あり、加水分解率は40モル%であった。加水分解反応
の収率は100%であった。 (2)ベンジル化 ポリマーC5.0gを撹拌機、冷却管を備えたセパラブ
ルフラスコに入れ、水200mlを加え、均一溶液とし、
15重量%水酸化ナトリウム水溶液29.2gを加えた
後、50℃に昇温し、塩化ベンジル0.7gを加え、撹
拌下50℃で24時間反応を続けた。反応後は、多量の
アセトン中に入れ、脱水、精製、粉砕し、粉末状のポリ
マー5.4gを得た(このポリマーをポリマーDとす
る)。1H−NMR測定の結果より、ポリマーDのベン
ジル化率は5.1モル%であった。実施例1及び比較例
1の結果を比較すると、加水分解及びベンジル化を1段
階で行って得たポリマーBと、加水分解及びベンジル化
を別々に2段階で行ったポリマーDがほぼ同じ特性を有
することが分かる。
The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. Example 1 (1) Synthesis of base polymer 204.8 g of N-vinylformamide was dissolved in distilled water to 1000 ml, and pH was adjusted to 7. This monomer aqueous solution was transferred to a 2000 ml separable flask equipped with a nitrogen gas introduction tube and a Dimroth condenser tube, and after nitrogen bubbling for 30 minutes, 0.52 g of 2,2′-azobiscyanoamidinopropane hydrochloride was added, Polymerization was carried out at 50 ° C. for 10 hours. The produced hydrous gel polymer was put into a large amount of acetone, dehydrated and pulverized to obtain poly (N-vinylformamide) as a white powder polymer. The yield was 100% (this polymer is referred to as polymer A). (2) Hydrolysis and benzylation of Polymer A 5.0 g of Polymer A obtained in (1) was placed in a separable flask equipped with a stirrer, 170 ml of distilled water was added and stirred,
Dissolved. Then, 28.7 g of a 15 wt% sodium hydroxide aqueous solution was added, the temperature was raised to 50 ° C., 0.8 g of benzyl chloride was further added, and the mixture was reacted at 50 ° C. for 24 hours while stirring. After the reaction was completed, dehydration with acetone, purification and powdering were carried out in the same manner as in (1) to obtain 5.5 g of a polymer (this polymer is referred to as polymer B). (3) Determination of Structure of Polymer B Polymer B was subjected to 1 H-NMR measurement, and the benzylation rate was determined from the area ratio of the signal of the proton of the benzene ring at around 7 ppm and the signal of the proton of the main chain methylene at around 2 ppm. . The benzylation rate was 5.6 mol%. Further, the colloid equivalent value of the polymer B at pH = 3 is 5.
4 meq / g, polymer B is vinylamine unit 33
Had a mol%. Comparative Example 1 (1) Hydrolysis of poly (N-vinylformamide) 53.3 g of the polymer A obtained in Example 1 (1) was stirred with a stirrer,
Put it in a separable flask equipped with a condenser tube, and add distilled water 80
0 ml was added, stirred and dissolved. Next, 117.6 g of 35 wt% concentrated hydrochloric acid was added, the temperature was raised to 60 ° C., and the mixture was stirred for 1 hour.
Hydrolysis was performed for 0 hours. The reaction product was placed in a large amount of acetone, dehydrated and pulverized, and then, as a white powder polymer, a partial hydrolyzate of poly (N-vinylformamide) 55.9 was obtained.
g was obtained (this polymer is referred to as polymer C). The colloid equivalent value of Polymer C at pH = 3 was 5.4 meq / g, and the hydrolysis rate was 40 mol%. The yield of the hydrolysis reaction was 100%. (2) Benzylation Polymer C (5.0 g) was placed in a separable flask equipped with a stirrer and a condenser, and 200 ml of water was added to make a homogeneous solution.
After adding 29.2 g of a 15 wt% sodium hydroxide aqueous solution, the temperature was raised to 50 ° C., 0.7 g of benzyl chloride was added, and the reaction was continued at 50 ° C. for 24 hours with stirring. After the reaction, the product was placed in a large amount of acetone, dehydrated, purified and pulverized to obtain 5.4 g of a powdery polymer (this polymer is referred to as polymer D). From the result of 1 H-NMR measurement, the benzylation rate of the polymer D was 5.1 mol%. Comparing the results of Example 1 and Comparative Example 1, the polymer B obtained by hydrolysis and benzylation in one step and the polymer D obtained by hydrolysis and benzylation in two steps showed almost the same characteristics. You know that you have.

【0008】[0008]

【発明の効果】本発明によれば、N−ビニルカルボン酸
アミド単位又はN−ビニルカルボン酸イミド単位を有す
る重合体より、ビニルアミン単位とN−ベンジルビニル
アミン単位を有するカチオン性重合体を1段階の反応で
製造することができ、反応時間、工数、ユーティリティ
ーなどを節減することができる。
According to the present invention, a cationic polymer having a vinylamine unit and an N-benzylvinylamine unit is prepared in one stage from a polymer having an N-vinylcarboxylic acid amide unit or an N-vinylcarboxylic acid imide unit. The reaction time, the number of steps, the utility, etc. can be reduced.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 茂 東京都新宿区西新宿3丁目4番7号 栗田 工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeru Sato 3-4-7 Nishishinjuku, Shinjuku-ku, Tokyo Kurita Industry Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】N−ビニルカルボン酸アミド単位又はN−
ビニルカルボン酸イミド単位を有する重合体に、アルカ
リ条件下、ハロゲン化ベンジルを反応させることを特徴
とするビニルアミン単位とN−ベンジルビニルアミン単
位を有するカチオン性重合体の製造方法。
1. An N-vinylcarboxylic acid amide unit or N-
A method for producing a cationic polymer having a vinylamine unit and an N-benzylvinylamine unit, which comprises reacting a polymer having a vinylcarboxylic acid imide unit with a benzyl halide under alkaline conditions.
JP30961394A 1994-11-18 1994-11-18 Method for producing cationic polymer Expired - Lifetime JP3442514B2 (en)

Priority Applications (1)

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JP30961394A JP3442514B2 (en) 1994-11-18 1994-11-18 Method for producing cationic polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30961394A JP3442514B2 (en) 1994-11-18 1994-11-18 Method for producing cationic polymer

Publications (2)

Publication Number Publication Date
JPH08143626A true JPH08143626A (en) 1996-06-04
JP3442514B2 JP3442514B2 (en) 2003-09-02

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Country Status (1)

Country Link
JP (1) JP3442514B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1856167B1 (en) * 2005-03-11 2015-05-06 Atotech Deutschland GmbH Acidic solution containing a polyvinylammonium compound and method of electrolytically depositing a copper deposit
JP2021105111A (en) * 2019-12-26 2021-07-26 昭和電工株式会社 Method for manufacturing n-vinyl carboxylic amide polymer solution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1856167B1 (en) * 2005-03-11 2015-05-06 Atotech Deutschland GmbH Acidic solution containing a polyvinylammonium compound and method of electrolytically depositing a copper deposit
JP2021105111A (en) * 2019-12-26 2021-07-26 昭和電工株式会社 Method for manufacturing n-vinyl carboxylic amide polymer solution

Also Published As

Publication number Publication date
JP3442514B2 (en) 2003-09-02

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