CAS number：26062-79-3
molecular formula：C24H54Cl3N3X2
molecular weight：491.06
EINECS number：230-993-8

English synonyms

261lv;2-Propen-1-aminium,N,N-dimethyl-N-2-propenyl-,chloride,homopolymer;ageflocwt20;ammonium,diallyldimethyl-,chloride,polymers;calgon261;cp261lv;diallyldimethylammoniumchloridepolymers;e261

Related categories

Intermediates; Polymer Science; Organic Raw Materials; Hydrophilic Polymers; Organic Chemical Raw Materials; Water Treatment Agents; Chemical Raw Materials; Other Raw Materials;
Polymers;Amine-Functional PolymersSelf-Assembly Materials;Cationic Polyelectrolytes;Polyelectrolytes for SAMS (Self-Assembled Monolayers);Hydrophilic Polymers;Polymer Science;Amine-Functional Polymers;Cationic Polyelectrolytes;Amine-Functional Polymers;Contact Printing;Hydrophilic Polymers;Materials; Chemical raw materials-organic chemicals; fluorides; chemical materials; organic chemical products;
Materials Science;Micro/NanoElectronics;Polyelectrolytes for SAMS (Self-Assembled Monolayers);Polymer Science;Self Assembly &;Self-Assembly Materials;water treatment;CationicPolyelectrolytes

Introduction

Polydimethyldiallylammonium chloride is a linear polymer with cationic groups. Therefore, it exhibits physical and chemical functions such as adsorption, charge neutralization, and ion exchange that neutral polymers do not have. Cationic polymer has a relatively fixed positive charge, and has a strong binding force to the surface of negatively charged fibers, plastics, etc., and is widely used as an antistatic agent, spinning oil, flocculant, etc. . The author synthesized polydimethyldiallyl ammonium chloride polymer antistatic agent with high molecular weight, rapid dissolution, less residual monomer and excellent antistatic properties by aqueous polymerization method.
Polydimethyldiallyl ammonium chloride is an aldehyde-free and non-polluting fixative, which can be used in the fixation of fabrics, but the time and temperature of the reaction and the temperature of the fixation bath should be well controlled during the fixation process. pH, so as to ensure the best color fastness, improve the effect of dyeing and color fixation.

Chemical properties

Use

●  This product has been widely used as a polymer flocculant in tap water and sewage treatment. Especially for the high turbidity raw water in the flood season of the river, in order to make the clay, silica, microorganisms and hydrated metal oxides in the raw water coagulate effectively, this product is usually used to treat

●  flocculant, dewatering coagulant

Production method

●  The polymerization method of dimethyl diallyl ammonium chloride (DDAC) aqueous solution was studied, and the effects of monomer concentration, sodium ethylenediaminetetraacetate (EDTA) concentration, initiator type and dosage on the intrinsic viscosity of the polymer were analyzed and discussed. , introduced the application of polydimethyldiallylammonium chloride (PDDAC) polymer antistatic agent on polypropylene fiber. The 70% dimethyldiallyl ammonium chloride monomer aqueous solution was heated to 80°C, the pH value was adjusted to 4-6, the oxygen was removed with nitrogen for 1 hour, the initiator was added, and the polymer was polymerized at 80°C for 4 hours to prepare the polydimer Methyldiallylammonium chloride.
Main raw materials
Monomer DDAC (synthesized in laboratory), initiator azobisisoheptanenitrile (ABVN), diisopropyl peroxydicarbonate (IPP), ammonium persulfate (APS), etc., are all chemically pure reagents.
Experimental principle
DDAC is a water-soluble monomer and can therefore be polymerized in aqueous solution in the presence of an initiator
Install a stirrer, thermometer, air tube, and condenser in a 500ml four-neck bottle, and place it in a super constant temperature water bath. Add 70% DDAC aqueous solution into the three-necked flask, adjust the pH value to 4-6, heat the monomer aqueous solution to 80°C, deoxygenate with nitrogen for 1 hour, add initiator, polymerize at 80°C for 4 hours, and then dilute to 40% Discharge.

Team Presentation