高价阴离子在PEG水溶液中的粘度B系数  

Viscosity B coeffiecents high-valent anion in aqueous poly[ethylene glycol]

作　　者：吴长增 

机构地区：[1]许昌师范高等专科学校化学系,河南许昌461000

出　　处：《信阳师范学院学报（自然科学版）》2000年第3期300-302,共3页Journal of Xinyang Normal University(Natural Science Edition)

摘　　要：测定了 Na Cl、KCl、Na2 SO4、K2 SO4、Na2 CO3 、Na3 PO4在 PEG水溶液中的相对粘度 ,利用 Jones- Dole方程求出了粘度 B系数 ,结果表明 B系数具有良好的加和性 .以 KCl为参考电解质计算出了单个离子 B系数 ,发现 SO2 -4,CO2 -3 ,PO3 -4的 B系数随着 PFG浓度的增大而减小 ,温度系数 d B / d T大于零 ,表明 SO2 -4,CO2 -3 ,PO3 -4对 PEG水溶液结构呈破坏作用 .The relative viscosities of NaCl,KCl,Na 2SO 4,K 2SO 4, Na 2CO 3,Na 3PO 4 in aqueous PEG were measured at 20 ℃and 30 ℃.The viscositi y B coeffiecents were calculated by Jones-Dole equation,and experements sho w ed the B coefficents were addictive well.The B coefficents of single ion were calculated with KCl for reference electrolyte.It was found that B coef ficents of SO 2- 4,CO 2- 4,PO 3- 4 decreased with increasing of PEG concentrates,the temperature coefficents dB/dT>0 indicated that t hese anion were structure-breakers to the structure of aqueous PEG solution.

关 键 词：无机盐 粘度B系数 PEG水溶液 聚乙二醇 

分 类 号：O632.33[理学—高分子化学]