成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List Methacrylamide
79-39-0

Methacrylamide synthesis

12synthesis methods
-

Yield:79-39-0 85%

Reaction Conditions:

with ammonia at 0 - 5; for 1 h;Green chemistry;

Steps:


Synthesis of monomer was carried out by mixing 0.1 mol (10 ml)of ammonia with 1 g of clay catalyst Maghnite-H+ 0.25M (10%), after that, we added 0.1 mol (15 ml) of methacrylic anhydride (with a molar ratio of 1:1 of methacrylic anhydride to ammonia) in bulk; the reaction mixture was cooled to 0-5 °C using an ice bath during 1 h. After that, we filtered the solution recover the product (Scheme1). The product obtained was a white powder which when recrystallized in a methanol-diethyl ether mixture. Yield: 85%.The anionic polymerization of MAM was carried out in sealed tubes. Each tube contains a mixture of 1 g of MAM, 10 ml of tetrahydrofuran THF and (0.15 g) 15% of Maghnite-Na. The mixtures werekept in an ice bath at 0 °C and stirred with a magnetic stirrer under dry nitrogen for 2 h 30 min. The resulting polymer was precipitated in methanol, washed for several times, dried at 40 °C in vacuum and weighed (yield 55%).

References:

Derkaoui, Samira;Belbachir, Mohammed;Haoue, Sara;Zeggai, Fatima Zohra;Rahmouni, Abdelkader;Ayat, Moulkheir [Journal of Organometallic Chemistry,2019,vol. 893,p. 52 - 60]

FullText

Methacrylamide Related Search: