Hexyl Vinyl Pyridine

336 block copolymerization with tbma using living p4vp lithium or potassium proceeds in a controlled manner in thf with pyridine and hmpt containing solvents at 78 and 0 c respectively resulting in p4vp block ptbma.

Hexyl vinyl pyridine.

A well defined amphiphilic coil rod block copolymer poly 2 vinyl pyridine b poly n hexyl isocyanate p2vp b phic was synthesized with quantitative yields by anionic polymerization a low reactive one directional initiator potassium diphenyl methane dpm k was very effective in polymerizing 2 vinyl pyridine 2vp without side reactions leading to perfect control. It is a colorless liquid although impure samples are often brown. 2 hexyl pyridine pyridine 2 hexyl supplier sponsors. May nevertheless polymerize exothermically if subjected to heat for prolonged periods or if contaminated.

Use of the information documents and data from the echa website is subject to the terms and conditions of this legal notice and subject to other binding limitations provided for under applicable law the information documents and data made available on the echa website may be reproduced distributed and or used totally or in part for non commercial purposes provided that echa is. 2 vinylpyridine 2vp is a water soluble pyridine derivative that can be used in the synthesis of poly 2 vinylpyridine p2vp by anionic polymerization. Endeavour specialty chemicals ltd. With our core.

If polymerization takes place inside a closed container the container may violently rupture. Endeavour speciality chemicals offers high impact aroma chemicals at small to medium scale. 4 vinylpyridine is prepared by the condensation of 4 methylpyridine and formaldehyde. The use of dmf trimethylamine and pyridine in 8 1 1 volume composition avoids adsorption of polymer on the sec column.

It is a monomeric precursor to specialty polymers. Select up to 4 products. It is a derivative of pyridine with a vinyl group in the 4 position. It is used industrially as a precursor to specialty polymers and as an intermediate in the chemical pharmaceutical dye and photo industries.

A synthetic route to potentially biocidal silsesquioxanes functionalized by quaternary pyridinium functionalities has been developed. Vinyl pyridine stabilized contains additives to prevent unwanted rapid polymerization. Search results for 2 vinyl pyridine at sigma aldrich. It can be industrially prepared by treatment of 2 methylpyridine with an aqueous solution of formaldehyde in a temperature range of 150 200 c.

N alkylation reactions of the precursor compounds 4 2 trimethoxysilyl ethyl pyridine 5 and 4 2 trichloro silylethyl pyridine 6 with iodomethane n hexylbromide and n hexadecylbromide cleanly afforded the corresponding i n i alkylpyridinium. Expertise in high impact aroma chemicals. It is a colorless liquid although samples are often brown. The liquid may polymerize upon contact with peroxides and.

It is a derivative of pyridine with a vinyl group in the 2 position next to the nitrogen.