A kind of preparation method of polyguanidine adipate hydrochloride

Abstract

The invention relates to a preparation method of polyguanidine adipate hydrochloride. Mix adipic acid and guanidine hydrochloride evenly, heat and melt, heating temperature is 120-160°C; add catalyst; add molecular weight regulator; the whole reaction process is subjected to water separation step, after the reaction is completed, immediately add to absolute ethanol and cool to room temperature , recrystallized, and filtered to obtain polyadipate-based guanidine hydrochloride. The polyguanidine adipate hydrochloride of the present invention improves the structure of the polyguanidine disinfectant, and introduces an electron-withdrawing group acyl group to make the guanidine group more positively charged, so its bactericidal ability is stronger.

Description

technical field [0001] The invention relates to a preparation method of a guanidine-containing polymer, in particular to a preparation method of polyadipate-based guanidine hydrochloride. Background technique [0002] There are many types of fungicides on the market now, with different mechanisms of action, and the scope and effect of sterilization are also different. However, they all have their own shortcomings, such as large toxic and side effects, small sterilization range, slow action speed, and high price. The guanidine-containing polymer has a broad spectrum of sterilization, low effective concentration, fast action speed, stable properties, and excellent performance of being easily soluble in water. It can be used at room temperature, long-term bacteriostatic, no side effects, non-corrosive, colorless, odorless , non-toxic, non-flammable, non-explosive, safe to use, moderate price, convenient transportation, can be said to be the best fungicide. Common ones, such a...

AI Technical Summary

Problems solved by technology

However, some guanidine-containing polymers have weak bactericidal ability and cannot meet the needs of production and life.