标题：A novel twin-tailed hydrophobically associating copolymer: synthesis, characterization and solution properties
作者：Wei Kuang;Jian Zhang;Ruyin Li
作者机构：[Kuang, W] School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100 Shandong, China, School of Chemistry and Pharmaceutical Eng 更多
通讯作者地址：[Wu, B]Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Shandong, Peoples R China.
关键词：Water-soluble polymer;Hydrophobic association;Amphiphile;Polyelectrolyte
摘要：Novel twin-tailed hydrophobically associating copolymers (DDSPAM) were prepared by micellar copolymerization of acrylamide (AM) and sodium vi-nylsulfonate with N,N-didecyl-N-methyl-AH4-vinylbenzyi)ammonium chloride in an aqueous solution. The structure and composition of DDSP AM were characterized by ~1H-NMR and elemental analysis. While the molecular weights of the copolymers were obtained via static light scattering, the hydrodynamic radius of aggregates was investigated using dynamic light scattering. The critical micellar concentration cmc and y_(cmc) values of DDSPAM were measured using fluorescence and later correlated with the values obtained from surface tension measurements. In addition, the viscosity stability studies of DDSPAM and hydrolyzed polyacrylamide (HPAM) revealed that DDSPAM, with twin tails of hydrophobic groups, exhibited better salt tolerance as well as temperature resistance compared to HPAM.