JP2003031199A5 - - Google Patents

Description

（式中、Ｒ¹、Ｒ²は各々独立に水素原子または炭素数１〜５のアルキル基を表し、あるいはＲ¹とＲ²とで結合して５員環または６員環構造をとることができる。）で示されるアミド構造を有する繰り返し構造単位を含む重合体を含有することを特徴とする亜鉛二次電池用セパレータ。
【請求項２】アミド構造を有する繰り返し構造単位を含む重合体が、一般式（２）
【化２】

（式中、Ｒ¹、Ｒ²は各々独立に水素原子または炭素数１〜５のアルキル基を表し、あるいはＲ¹とＲ²とで結合して５員環または６員環構造をとることができる。）で示される化合物の重合体であることを特徴とする請求項１に記載の亜鉛二次電池用セパレータ。
【請求項３】アミド構造を有する繰り返し構造単位を含む重合体が、カルボン酸（塩）構造をさらに有するモノマーの重合体であることを特徴とする請求項１または２に記載の亜鉛二次電池用セパレータ。
【請求項４】アミド構造を有する繰り返し構造単位を含む重合体が、Ｎ−ビニルアミド構造を有するモノマーとカルボン酸（塩）構造を有するモノマーとの共重合体であることを特徴とする請求項１〜３のいずれかに記載の亜鉛二次電池用セパレータ。
【請求項５】Ｎ−ビニルアミド構造を有するモノマーが、Ｎ−ビニルアセトアミドであることを特徴とする請求項２または４に記載の亜鉛二次電池用セパレータ。
【請求項６】カルボン酸（塩）構造を有するモノマーが、（メタ）アクリル酸（塩）であることを特徴とする請求項４または５に記載の亜鉛二次電池用セパレータ。
【請求項７】アミド構造を有する繰り返し構造単位を含む重合体が、三次元架橋体であることを特徴とする請求項１〜６のいずれかに記載の亜鉛二次電池用セパレータ。
【請求項８】補強材を含むことを特徴とする請求項１〜７のいずれかに記載の亜鉛二次電池用セパレータ。
【請求項９】補強材が、耐アルカリ性を有する多孔質膜である請求項８に記載の亜鉛二次電池用セパレータ。
【請求項１０】補強材が、樹脂のフィルムまたは不織布である請求項８または９に記載の亜鉛二次電池用セパレータ。
【請求項１１】高沸点アルコールを含有することを特徴とする請求項１〜１０のいずれかに記載の亜鉛二次電池用セパレータ。
【請求項１２】請求項１〜１１のいずれかに記載の亜鉛二次電池用セパレータを有することを特徴とする亜鉛二次電池。 [Claims]
1. A compound represented by the general formula (1):
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(In the formula, R ¹ and R ² each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, or may form a 5-membered or 6-membered ring structure by bonding with R ¹ and R ^2. A zinc secondary battery separator comprising a polymer containing a repeating structural unit having an amide structure represented by the following formula:
2. A polymer comprising a repeating structural unit having an amide structure is represented by the general formula (2):
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(In the formula, R ¹ and R ² each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, or may form a 5-membered or 6-membered ring structure by bonding with R ¹ and R ^2. The separator for a zinc secondary battery according to claim 1, wherein the separator is a polymer of a compound represented by the following formula:
3. The zinc secondary battery according to claim 1, wherein the polymer containing a repeating structural unit having an amide structure is a polymer of a monomer further having a carboxylic acid (salt) structure. For separator.
4. The polymer containing a repeating structural unit having an amide structure is a copolymer of a monomer having an N-vinylamide structure and a monomer having a carboxylic acid (salt) structure. 4. The separator for a zinc secondary battery according to any one of claims 1 to 3.
5. The zinc secondary battery separator according to claim 2 , wherein the monomer having an N-vinylamide structure is N-vinylacetamide.
6. The separator for a zinc secondary battery according to claim 4, wherein the monomer having a carboxylic acid (salt) structure is (meth) acrylic acid (salt).
7. The separator for a zinc secondary battery according to claim 1, wherein the polymer containing a repeating structural unit having an amide structure is a three-dimensional crosslinked product.
8. The zinc secondary battery separator according to claim 1, further comprising a reinforcing material.
9. The separator for a zinc secondary battery according to claim 8, wherein the reinforcing material is a porous film having alkali resistance.
10. The separator for a zinc secondary battery according to claim 8, wherein the reinforcing material is a resin film or a nonwoven fabric.
11. Zinc secondary battery separator according to any one of claims 1 to 10, characterized in that it contains a high-boiling alcohol.
12. A zinc secondary battery comprising the zinc secondary battery separator according to any one of claims 1 to 11 .

3) The separator for a zinc secondary battery according to 1) or 2) above, wherein the polymer containing a repeating structural unit having an amide structure is a polymer of a monomer having a carboxylic acid (salt) structure.
4) The polymer having a repeating structural unit having an amide structure is a copolymer of a monomer having an N-vinylamide structure and a monomer further having a carboxylic acid (salt) structure. The separator for a zinc secondary battery according to any one of the above.
5) The separator for a zinc secondary battery according to 2) or 4) above, wherein the monomer having an N-vinylamide structure is N-vinylacetamide.

9) The separator for a zinc secondary battery according to 8) above, wherein the reinforcing material is a porous film having alkali resistance.
10 ) The separator for a zinc secondary battery according to 8) or 9) above, wherein the reinforcing material is a resin film or a nonwoven fabric.

11 ) The separator for a zinc secondary battery according to any one of the above 1) to 10 ), wherein the separator contains a high-boiling alcohol.
12 ) A zinc secondary battery comprising the zinc secondary battery separator according to any one of the above 1) to 11).