JPH04288328A - New brominated polyether compound - Google Patents

New brominated polyether compound

Info

Publication number
JPH04288328A
JPH04288328A JP5248391A JP5248391A JPH04288328A JP H04288328 A JPH04288328 A JP H04288328A JP 5248391 A JP5248391 A JP 5248391A JP 5248391 A JP5248391 A JP 5248391A JP H04288328 A JPH04288328 A JP H04288328A
Authority
JP
Japan
Prior art keywords
polyether compound
formula
bromine content
brominated polyether
compound
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
JP5248391A
Other languages
Japanese (ja)
Inventor
Isamu Moribe
森部 勇
Takayuki Saito
斉藤 高之
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.)
Resonac Corp
Original Assignee
Hitachi Chemical 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP5248391A priority Critical patent/JPH04288328A/en
Publication of JPH04288328A publication Critical patent/JPH04288328A/en
Pending legal-status Critical Current

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  • Polyethers (AREA)

Abstract

PURPOSE:To prepare a brominated polyether compd. which has a specified structural formula, excellent solubilities in various solvents, and a high bromine content. CONSTITUTION:A brominated polyether compd. which has repeating units of the formula (wherein n is 1 or higher) and is prepd. by the polycondensation of decabromodiphenyl ether with ethylene glycol in equimolar amts. in a suitable solvent in the presence of an alkaline catalyst under the elimination of HBr.

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、臭素含有率の高い新規
な臭素含有ポリエーテル化合物に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel bromine-containing polyether compound having a high bromine content.

【0002】0002

【従来の技術】従来、高臭素含有化合物は、プラスチッ
ク、繊維、ゴム、塗料などに難燃剤として広く用いられ
ている。このような化合物の例としては、式(II)
BACKGROUND OF THE INVENTION Hitherto, high bromine-containing compounds have been widely used as flame retardants for plastics, fibers, rubber, paints, and the like. Examples of such compounds include formula (II)


化2】 で示されるデカブロモジフェニルエーテル、式(III
[
Decabromodiphenyl ether represented by formula (III)
)

【化3】 で示されるテトラブロモビスフェールA、式(IV)[Chemical formula 3] Tetrabromobisphenol A represented by formula (IV)


化4】 で示される臭素化エポキシ樹脂などを挙げることができ
る。このような難燃剤は臭素含有量が高いものほど難燃
性に優れると考えられる。
[
Examples include brominated epoxy resins represented by the following formula. It is believed that the higher the bromine content of such flame retardants, the better the flame retardancy.

【0003】しかしながら、式(II)のデカブロモジ
フェニルエーテルは、特に臭素含有量が高く、理論臭素
含有量が83.3質量%であり、少量の添加でも高い難
燃効果を示すが、各種溶剤に対する溶解性に乏しく、使
い難いという欠点がある。
However, decabromodiphenyl ether of formula (II) has a particularly high bromine content, with a theoretical bromine content of 83.3% by mass, and exhibits a high flame retardant effect even when added in a small amount. The drawback is that it has poor solubility and is difficult to use.

【0004】また、式(III)のテトラブロモビスフ
ェールAは、各種溶剤に対する溶解性はある程度あるも
のの、理論臭素含有量が58.4質量%と、臭素含有量
が低く、デカブロモジフェニルエーテルに比べて難燃性
に劣るという欠点がある。
[0004]Although tetrabromobisphenol A of formula (III) has a certain degree of solubility in various solvents, it has a low theoretical bromine content of 58.4% by mass, and has a low bromine content compared to decabromodiphenyl ether. The disadvantage is that it has poor flame retardancy.

【0005】さらに、式(IV)の臭素化エポキシ樹脂
は、同様に各種溶剤に対する溶解性はある程度あるもの
の、理論臭素含有量が60.6質量%で(但し、n=1
のとき、n=2以上ではこの値よりも低くなる。)、臭
素含有量が低く、デカブロモジフェニルエーテルに比べ
て難燃性に劣るという欠点がある。
Furthermore, although the brominated epoxy resin of formula (IV) similarly has a certain degree of solubility in various solvents, its theoretical bromine content is 60.6% by mass (however, n=1
When n=2 or more, the value becomes lower than this value. ), it has the disadvantage of having a low bromine content and inferior flame retardancy compared to decabromodiphenyl ether.

【0006】[0006]

【発明が解決しようとする課題】本発明は、これら従来
技術の欠点を解消し、各種溶剤に対する溶解性に優れ、
臭素含有量の高い新規な臭素含有ポリエーテル化合物を
提供するものである。
[Problems to be Solved by the Invention] The present invention solves the drawbacks of these conventional techniques, and has excellent solubility in various solvents.
The present invention provides a novel bromine-containing polyether compound with a high bromine content.

【0007】[0007]

【課題を解決するための手段】本発明は、一般式(I)
[Means for Solving the Problems] The present invention provides general formula (I)

【化5】 〔式中、nは1以上の整数を示す。〕で表される繰り返
し単位を有する新規な臭素含有ポリエーテル化合物に関
する。
embedded image [where n represents an integer of 1 or more]. This invention relates to a novel bromine-containing polyether compound having a repeating unit represented by the following formula.

【0008】本発明の新規な臭素含有ポリエーテル化合
物は、デカブロモジフェニルエーテルとエチレングリコ
ールに類似の構造を有している。従って、該ポリエーテ
ル化合物は、デカブロモジフェニルエーテルの高臭素含
有量の特徴とエチレングリコールの各種溶剤に対する溶
解性に優れる特徴を併せ持つように設計されている。な
お、該ポリエーテル化合物の理論臭素含有量は74.4
質量%となり、デカブロモジフェニルエーテルのそれ(
83.3質量%)よりは低いが、テトラブロモビスフェ
ールA(58.8質量%)、臭素化エポキシ樹脂(60
.6質量%)よりも高い。
The novel bromine-containing polyether compounds of the present invention have structures similar to decabromodiphenyl ether and ethylene glycol. Therefore, the polyether compound is designed to have both the high bromine content of decabromodiphenyl ether and the excellent solubility in various solvents of ethylene glycol. The theoretical bromine content of the polyether compound is 74.4.
% by mass, and that of decabromodiphenyl ether (
Tetrabromobisphal A (58.8% by mass), brominated epoxy resin (60% by mass), but lower than 83.3% by mass).
.. 6% by mass).

【0009】本発明の新規な臭素含有ポリエーテル化合
物は、公知の任意の方法によって合成することができる
。例えば、該ポリエーテル化合物は、適当な溶媒中でデ
カブロモジフェニルエーテルとエチレングリコールを等
モル量配合し、アルカリ性触媒の存在下にHBr を脱
離させながら縮合重合させて合成することができる。
The novel bromine-containing polyether compound of the present invention can be synthesized by any known method. For example, the polyether compound can be synthesized by blending equimolar amounts of decabromodiphenyl ether and ethylene glycol in a suitable solvent and conducting condensation polymerization in the presence of an alkaline catalyst while eliminating HBr.

【0010】上記一般式(I)において、nは1以上の
整数を示すが、nは1〜5であることが好ましい。n=
5を超えると、溶剤に対する溶解性に劣るようになる。
In the above general formula (I), n represents an integer of 1 or more, but preferably 1-5. n=
When it exceeds 5, the solubility in solvents becomes poor.

【0011】本発明の新規な臭素含有ポリエーテル化合
物は、臭素含有量の高いことから、特に難燃剤として有
用である。
The novel bromine-containing polyether compounds of the present invention are particularly useful as flame retardants because of their high bromine content.

【0012】0012

【実施例】次に、本発明を実施例によって具体的に説明
するが、本発明はこれに限定されるものではない。
[Examples] Next, the present invention will be explained in detail with reference to Examples, but the present invention is not limited thereto.

【0013】実施例1 デカブロモジフェニルエーテル57.6g(60.0ミ
リモル)とエチレングリコール3.72g(59.9ミ
リモル)を、炭酸カリウム25.3g(258ミリモル
)及び18−クラウン6−エーテル4.28g(16.
2ミリモル)を含有するジメチルアセトアミド270c
m3 中に仕込み、80℃で24時間反応させた。反応
混合物を大量の水中に注ぎ、析出した固体を水で洗浄後
、減圧下100℃で乾燥し、目的とする化合物を得た。 収量は44%であった。
Example 1 57.6 g (60.0 mmol) of decabromodiphenyl ether and 3.72 g (59.9 mmol) of ethylene glycol were mixed with 25.3 g (258 mmol) of potassium carbonate and 4.5 g (258 mmol) of 18-crown 6-ether. 28g (16.
dimethylacetamide 270c containing 2 mmol)
m3 and reacted at 80°C for 24 hours. The reaction mixture was poured into a large amount of water, and the precipitated solid was washed with water and dried at 100° C. under reduced pressure to obtain the target compound. Yield was 44%.

【0014】得られた化合物の融点(DSC法)は90
℃、臭素含有量は74.1質量%(理論値74.4質量
%)であった。該化合物の 1H−NMRを重水素化ピ
リジンを溶媒として測定したところ、エチレングリコー
ル残基のエチレン基水素原子のプロトンに帰属されるシ
ャープな吸収が3.5ppm 付近に見られた。該化合
物の重量平均分子量は、GPC法により、テトラヒドロ
フラン溶媒を用い、標準単分散スチレン換算で測定した
ところ、1000であった。なお、該化合物のテトラヒ
ドロフランに一部不溶のため濾過して測定した。該化合
物の各種溶剤に対する溶解性を調べ、表1に結果をまと
めた。
The melting point (DSC method) of the obtained compound was 90
℃, the bromine content was 74.1% by mass (theoretical value 74.4% by mass). When 1H-NMR of the compound was measured using deuterated pyridine as a solvent, a sharp absorption attributed to the proton of the ethylene group hydrogen atom of the ethylene glycol residue was observed at around 3.5 ppm. The weight average molecular weight of the compound was determined to be 1000 by GPC using a tetrahydrofuran solvent in terms of standard monodisperse styrene. Note that since some of the compound is insoluble in tetrahydrofuran, the measurement was performed after filtration. The solubility of the compound in various solvents was investigated, and the results are summarized in Table 1.

【0015】なお、溶解性は、溶剤1デシリットルに上
記化合物2.5gを溶解し、結果を下記の基準で評価し
た。 ○    完全に溶解した。 △    ほぼ溶解したが、一部は不溶であった。 ×    不溶であった。
The solubility was evaluated by dissolving 2.5 g of the above compound in 1 deciliter of solvent and evaluating the results according to the following criteria. ○ Completely dissolved. △Almost dissolved, but some remained insoluble. × It was insoluble.

【0016】[0016]

【表1】[Table 1]

【0017】[0017]

【発明の効果】本発明の臭素含有ポリエーテル化合物は
、臭素含有量が高く、しかも各種溶剤に対する溶解性も
相当に高いので、難燃剤として著しく有用である。
EFFECTS OF THE INVENTION The bromine-containing polyether compound of the present invention has a high bromine content and also has considerably high solubility in various solvents, so it is extremely useful as a flame retardant.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】  一般式(I) 【化1】 〔式中、nは1以上の整数を示す。〕で表される繰り返
し単位を有する新規な臭素含有ポリエーテル化合物。
Claims 1: General formula (I) [In the formula, n represents an integer of 1 or more]. ] A novel bromine-containing polyether compound having a repeating unit represented by:
JP5248391A 1991-03-18 1991-03-18 New brominated polyether compound Pending JPH04288328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5248391A JPH04288328A (en) 1991-03-18 1991-03-18 New brominated polyether compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5248391A JPH04288328A (en) 1991-03-18 1991-03-18 New brominated polyether compound

Publications (1)

Publication Number Publication Date
JPH04288328A true JPH04288328A (en) 1992-10-13

Family

ID=12915964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5248391A Pending JPH04288328A (en) 1991-03-18 1991-03-18 New brominated polyether compound

Country Status (1)

Country Link
JP (1) JPH04288328A (en)

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