Taking cocamidopropyl betaine(CAB)as the dispersant,the hydrophobic monomer KS-3 synthesized from oleic acid(OA),N,N-dimethylpropylenediamine(DMAPA),and chloropropylene(AC)is polymerized with acrylamide(AM)by free-radical to obtain the polymer RES.Critical micellar concentration,TEM,and particle size tests show that KS-3 and CAB present a good synergistic effect and can form worm-like micelles when they mix in the AM monomer solution.It is found through analyzing the micelle state of KS-3 and the polymerization mechanism between KS-3 and AM that RES has better thermal stability,smaller critical aggregation concentration,and more compact molecular aggregation,forming a higher density network structure in aqueous solution.Through temperature resistance,thixotropy and viscoelasticity tests to RES by a rheometer,RES shows excellent temperature resistance,larger thixotropic loops,and better viscoelasticity.The polymers have stronger associative structure.
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