924-42-5Relevant articles and documents
Synthesis method of N-hydroxymethyl acrylamide
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Paragraph 0033; 0036-0037; 0038; 0041-0042, (2021/06/12)
The invention relates to a synthesis method of N-hydroxymethyl acrylamide. By taking solid acrylamide and paraformaldehyde as raw materials, adopting a supported quaternary ammonium base catalyst, and selectively activating an amino group in the acrylamide by controlling the size of a hydrocarbyl group connected with quaternary ammonium base and utilizing the steric effect of hydrocarbyl, the self-polymerization behavior in the production process of the N-hydroxymethyl acrylamide is reduced, and the N-hydroxymethyl acrylamide monomer is efficiently obtained. The supported quaternary ammonium alkali is used as the catalyst, the reaction condition is mild, the selectivity is high, system polymerization caused by the traditional inorganic alkali liquor reaction is effectively avoided, and the reaction system can realize high-efficiency conversion of raw materials without adding a large amount of water as a reaction solvent, so that the yield is improved; and the supported quaternary ammonium base catalyst has the characteristics of large specific surface area, high reaction activity and the like, greatly reduces the use amount of solvent water in the reaction process, is convenient to remove in the post-treatment process, and reduces sewage discharge.
Copolymerization of acrylic acid with acrylamide biuret derivatives
Sirekanyan,Kalantaryan,Akopyan,Eripyan
, p. 1570 - 1574 (2015/02/05)
Copolymerization of acrylic acid with new acrylamide biuret derivatives obtained was investigated. Reactivity ratios r 1 and r 2 of these monomers with acrylic acid were calculated. It was found that monomers of mono- and diacrylamide biuret derivatives are of cyclic structures and this fact specifically affects their activity in the copolymerization with acrylic acid.
An efficient hydroxymethylation of lactams
Jouglet,Oumoch,Rousseau
, p. 3869 - 3874 (2007/10/03)
N-Hydroxymethylation of lactams was achieved using paraformaldehyde in acetone in the presence of K2CO3 and water under sonication conditions.