高分子稀溶液粘度方程中Huggins系数的新解释  

A New Interpretation of Huggins Coefficient in the Viscosity Equation for Polymer Dilute Solution

作　　者：潘雁[1] 程镕时[1] 

机构地区：[1]华南理工大学材料学院,高分子研究所广州510641

出　　处：《高等学校化学学报》2000年第9期1497-1499,共3页Chemical Journal of Chinese Universities

基　　金：国家攀登计划! (批准号 :596730 2 5)资助

摘　　要：The chain length dependency of molar association constant K_a of polymer in solution was investigated theoretically. K_a is proportional to the effective hydrodynamic volume V_ eff of polymer chain in solution. V_ eff is the product of a shape factor and hydrodynamic volume. On the basis of these results, the observed enhancement of Huggins coefficient for short chain and branched polymer could be satisfactorily interpreted.The chain length dependency of molar association constant K_a of polymer in solution was investigated theoretically. K_a is proportional to the effective hydrodynamic volume V_ eff of polymer chain in solution. V_ eff is the product of a shape factor and hydrodynamic volume. On the basis of these results, the observed enhancement of Huggins coefficient for short chain and branched polymer could be satisfactorily interpreted.

关 键 词：Huggins系数 团簇理论 高分子稀溶液 粘度方程 

分 类 号：O631.4[理学—高分子化学]