酢酸4-ビニルフェニル

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H302：飲み込むと有害

  H315：皮膚刺激

  H317：アレルギー性皮膚反応を起こすおそれ

  H319：強い眼刺激

• 注意書き

  P261：粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。

  P264：取扱い後は皮膚をよく洗うこと。

  P264：取扱い後は手や顔をよく洗うこと。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P301+P312：飲み込んだ場合：気分が悪い時は医師に連絡する こと。

  P302+P352：皮膚に付着した場合：多量の水と石鹸で洗うこと。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

酢酸4-ビニルフェニル 価格

MSDS Information

• 4-Ethenylphenol acetate

酢酸4-ビニルフェニル 化学特性,用途語,生産方法

• 外観

  無色～うすい黄色～うすい黄赤色透明液体

• 説明

  4-Acetoxystyrene can be used to synthesize Poly(p-hydroxystyrene) as the main component of photoresist. The chemically amplified photoresist of the poly(p-hydroxystyrene) series is currently the mainstream photoresist product in the world, and it is one of the key technologies for processing photo-etched integrated circuits and manufacturing chips.

• 化学的特性

  4-Acetoxystyrene is a clear and colorless liquid that is essentially the acetic acid ester of p-vinylphenol. It will homopolymerize readily in the same manner that styrene homopolymerizes and can also be copolymerized with styrene and with monomers which are copolymerizable with styrene. 4-Acetoxystyrene is homopolymerized and copolymerized in aqueous emulsion and, without isolation, the polymer is hydrolyzed to homopolymers and copolymers of p-vinylphenol with a base. Homopolymers and copolymers of p-vinylphenol are used as epoxy resin curing agents and in the preparation of epoxy resins by reaction with epichlorohydrin.

• 使用

  4-Acetoxystyrene is a stable Styrene monomer which can be readily polymerized and copolymerized to low, medium and high molecular weight polymers. Undergoes free radical polymerization, similar to styrene.

• 主な応用

  4-Acetoxystyrene is a polymer that can be used in microlithography and is the precursor of easily derivatized p-hydroxystyrene.

• 製造方法

  The preparation of 4-Acetoxystyrene is as follows:Add p-hydroxystyrene (120g) to a 2L four-neck bottle. triethylamine(106g), phenothiazine (1.2g), Methyl tert-butyl ether (480 g), Dry ice-ethanol bath to -5 to 0 °C, acetyl chloride (86g) was added dropwise with stirring. The internal temperature is controlled at -5 to 0 °C. After the completion of the dropwise addition, the temperature was raised at 10 to 20 °C to continue the reaction for 1 hour. Sampling analysis (central control 1, raw material After completion of the reaction, the mixture was filtered, and the cake was washed with methyl t-butyl ether (50 g × 3). The filtrate was quenched by the addition of 4 g of methanol, and the reaction was stirred for 10 minutes. After completion, phenothiazine (1.2 g) was added and the reaction mixture was concentrated.Methyl tert-butyl ether (580 g) was recovered to give a crude product (160 g).The crude product was distilled under reduced pressure to give the product, p-acetoxy styrene (142 g), yield 87.7%, and sampled for analysis (main content >99%).

  

• 安全性プロファイル

  Moderately toxic by ingestion.Slightly toxic by skin contact. An eye irritant. A combustibleliquid. When heated to decomposition it emits acrid smokeand irritating vapors.

• Advantages

  Grafting 4-Acetoxystyrene (AOS) onto Polypropylene (PP) could significantly improved PP's space charge distribution, DC resistivity, and DC breakdown strength. These improvements were related to carbonyl (polar group) and benzene ring derived from AOS. As the carbonyl in AOS is introduced onto the PP chains by the grafting reaction, the homo-charge injected from the electrodes during the voltage application is trapped by the carbonyl and neutralizes the hetero-charge, decreasing hetero-charge. With the increase of grafting degree, the concentration of carbonyl increases, the corresponding charge trapping ability rises, and thus the extent of neutralizing the hetero-charge increases. The space charge is effectively suppressed. Grafting AOS onto PP significantly increases breakdown performance since AOS possesses chemical construction similar to the benzil-type voltage stabilizer. Because of delocalized π-electrons, AOS possesses a low ionizing potential and high electron affinity, making it capable of capturing the energetic electrons by collision and dissipating the energy, and the breakdown strength is improved. On the other hand, the energy of hot electrons is consumed through Fries rearrangement of AOS, weakening the attack of hot electrons on molecular chains and resulting in enhanced breakdown strength[1].

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