摘要
对共聚物电解质ＭＡ－Ｎａ２（顺丁烯二酸钠）／ＡＡ－Ｎａ（丙烯酸钠）水溶液ηＳＰ／Ｃ（比浓粘度）与浓度的关系、中性盐及溶液ｐＨ对ηＳＰ／Ｃ的影响进行了研究。结果表明，稀释ＭＡ－Ｎａ２／ＡＡ－Ｎａ溶液时，ηＳＰ／Ｃ急剧上升，而稀释含中性盐（ＫＣｌ或ＣａＣｌ２）的ＭＡ－Ｎａ２／ＡＡ－Ｎａ溶液体系时（中性盐含量保持０．０１ｍｏｌ／Ｌ），ηＳＰ／Ｃ的变化却不大。添加极少量（＜０．０５％）中性盐，可使ＭＡ－Ｎａ２／ＡＡ－Ｎａ溶液体系的ηＳＰ／Ｃ大幅度下降，当中性盐浓度大于０．０５％时，ηＳＰ／Ｃ趋于稳定。溶液ｐＨ＝８时，ηＳＰ／Ｃ最高，ｐＨ＜８或ｐＨ＞８时，ηＳＰ／Ｃ迅速降低。
In this paper, the effects of solution concentration,neutrality salt, solution pH on η SP / C of MA Na 2 (sodium maleate)/AA Na (sodium acrylate) copolymer electrolyte aqueous solution are studied. The results show that η SP / C increases sharply as the concentration of MA Na 2/AA Na solution decreases. When the concentration of neutrality salt (KCl or CaCl 2) in MA Na 2/AA Na solution keeps constant (0.01 mol/L), the change of η SP / C is small. Adding a little neutrality salt (<0.05%) in the solution, η SP / C decreases sharply. When the concentration of neutrality slat is more than 0.05%, η SP / C tends to stable. The solutions η SP / C reaches the maximum when pH=8, η SP / C decreases sharply when pH<8 or pH>8.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1996年第6期127-130,共4页
Polymer Materials Science & Engineering
关键词
共聚物
聚电解质
高分子溶液
粘度
copolymer, polyelectrolyte, polymer solution, viscosity
