Cryloxyethyl-trimethylamm-onium chloride (DAC) ,carboxymethyl cellulose sodium, 2-acylami-do-2-methlpropane sulfonic acid (AMPS) , acrylamide and acrylic acid(AA) was used as the reaction monomer,the APS was utilized to initiate the synthesis. A series of grafted copolymer were successfully prepared. Under different ionic strength and temperatures, the rheological properties of the polymer dis-persed in water have been studied. The results showed that compared to the CMCNa-g-AM aqueous solu-tion , viscosity retention rate of the polymer aqueous solution increased visibly with the addition of salt. It showed more heat resistance than the copolymer. The rheological properties of Cr3 + crosslinked gels were also been investigated. Experimental results demonstrated that the polymer of DAC/CMCNa/AMPS/AM/ AA possessed more excellent characteristics than the copolymer of CMCNa-g-AM.%以丙烯酸(AA)、丙烯酰胺(AM)、2-丙烯酰胺-2-甲基丙磺酸(AMPS)、羧甲基纤维素钠、丙烯酰氧乙基三甲基氯化铵(DAC)为原料,通过水溶液接枝聚合的方法,制备CMCNa/AM/AA/AMPS/DAC五元共聚物,研究了不同盐溶液和不同温度对接枝共聚物水溶液粘度的影响.结果表明,随着盐的增加,CMCNa/AM/AA/AMPS/DAC五元共聚物水溶液的粘度保留率比CMCNa-g-AM二元共聚物溶液有所提高,共聚物的耐温性也有所提高.CMCNa/AM/AA/AMPS/DAC聚合物溶液Cr3+交联凝胶的流变实验结果表明,五元共聚物CMCNa/AM/AA/AMPS/DAC相对于二元共聚物CMCNa-g-AM具有更好的溶液性能.
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