Preparation method of poly dialkyl diallyl ammonium halide

A technology of polydialkyl diallyl ammonium halide and dialkyl diallyl ammonium halide, which is applied in the field of preparation of cationic homopolymer products, and can solve the problem that the characteristic viscosity is not serially controllable and the product characteristic viscosity The influence law is not obvious, it is difficult to obtain a stable process method, etc., to achieve the effect of high relative molecular weight of the product, good economy and applicability, and little influence of impurities
CN101081884AInactive Publication Date: 2007-12-05NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2007-12-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses preparation process of polyammonium dialkyldiallyl halide. By using ammonium dialkyldiallyl halide with high purity as material, and through adding initiator and complexing agent at relatively low temperature and stepped temperature raising for slow polymerization and high temperature curing, polyammonium dialkyldiallyl halide with relatively high molecular weight is prepared. The molecular weight is regulated through regulating the initial monomer content and initiator amount in the reaction system. The process has industrial application foreground, high technological stability, easy operation and other advantages, and the product has relatively high molecular weight.
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Description

technical field

[0001] The invention belongs to the preparation technology of cationic homopolymerization products, in particular to a preparation method of polydialkyl diallyl ammonium halide. Background technique

[0002] Polydialkyl diallyl ammonium halide is a kind of cationic polyquaternary ammonium salt, its molecular structure and preparation reaction formula are as follows:

[0003]

[0004] In the formula, n=2, 3, 4, ... n; m = 2, 3, 4, ... m. Among them, R is preferably a hydrogen atom or C 1～18 The alkyl group, Y is preferably halogen F, Cl, Br and I. In this class of compounds, polydimethyldiallyl ammonium chloride (Poly-Dimethyldiallyl ammonium chloride, referred to as PDMDAAC) is one of the most ideal cationic polyquaternary ammonium salts. PDMDAAC is a water-soluble linear polymer with cationic groups on its molecular chain, and it is also a cationic polyelectrolyte. PDMDAAC is a white easily absorbent powder, soluble in water, methanol and glacial acet...

Claims

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