4-ビニルピリジン 化学特性,用途語,生産方法
外観
無色〜黒褐色, 液体
溶解性
水、エタノール及びアセトンに溶ける。
用途
繊維改質剤,ゴム改質剤,接着剤,高分子系界面活性剤およびイオン交換体等の機能性高分子の原料モノマー
用途
有機合成原料(イオン交換膜)。
使用上の注意
不活性ガス封入
化学的特性
dark brown to yellow liquid. 2.9g can be dissolved in 100g of water at 20℃, soluble in methanol, ether, benzene, acetone, and slightly soluble in ether. When exposed to light and heat, polymerization occurs, and 0.1%-0.2% hydroquinone is often added as a polymerization inhibitor during storage.
使用
4-Vinylpyridine acts as a co-monomer in styrene-butadiene polymers to promote adhesion between the rubber compound and supporting fibers (or cords) in tires, belts and hoses. It serves as an intermediate for manufacturing chemicals and pharmaceuticals. Further, it is used as a reagent for the modification of cysteine. In addition to this, it is used to make poly(4-vinylpyridine) and elastomers.
製造方法
4-Vinylpyridine is synthesized by reacting 4-picoline with formaldehyde to generate 4-pyridineethanol, which is then dehydrated.
主な応用
4-Vinylpyridine was used as a monomer in polymer chemistry and induced nonimmunological contact urticaria and allergic contact dermatitis. No crossreactivity is observed between pyridine derivatives. It can be copolymerized with many other monomers, in particular cationic monomers, such as acrylamide, acrylates, and also with other vinyl-based monomers (e.g. styrene).?
純化方法
6 2 . Purify the monomer by fractional distillation under a good vacuum and in a N2 atmosphere and store it in sealed ampoules under N2, and keep it in the dark at -20o. The picrate has m 175-176o. [UV: Coleman & Fuoss J Am Chem Soc 77 5472 1955, Overberger et al. J Polymer Sci 27 381 1958, Petro & Smyth J Am Chem Soc 79 6142 1957.] It is used for alkylating SH groups in peptides [Anderson & Friedman Can J Biochem 49 1042 1971, Cawins & Friedman Anal Biochem 35 489 1970]. [Beilstein 20 II 170, 20 III/IV 2887, 20/6 V 213.]
参考文献
[1] Baskaran, D. and A. Müller. “Anionic Polymerization of Polar Vinyl Monomers.” (2012): 623-655
4-ビニルピリジン 上流と下流の製品情報
原材料
準備製品