大分子溶致凝聚过程中的几个分界浓度  

The Dividing Concentrations of Polymer Solutions in the Lytropic Condensation of Macromolecules

作　　者：吴其晔[1] 

机构地区：[1]青岛科技大学高分子科学与工程学院,青岛266042

出　　处：《高分子通报》2013年第6期1-6,共6页Polymer Bulletin

基　　金：国家自然科学基金资助项目(50973050)

摘　　要：按照现代高分子凝聚态物理学观点,高分子溶液按浓度分为:极稀溶液、稀溶液、亚浓溶液、浓溶液、极浓溶液5个层次,各层次间的分界浓度分别称为动态接触浓度、接触浓度、缠结浓度和全高斯链浓度,其中全高斯链浓度由本文作者命名。文中给出各分界浓度的定义,介绍各分界浓度的物理意义,特别说明命名全高斯链浓度的依据。同时详细讨论了不同浓度溶液中大分子链的构象及其变化、链间相互作用的本质和微观图像、以及溶液浓度变化对溶液性质的影响。According to the modern condensed polymers physics the polymer solutions can be divided in 5 classes according to concentration： extremely dilute solution; dilute solution; semi-dilute solution; concentrated solution and highly concentrated solution. There are 4 dividing concentrations between these solutions： dynamic overlap concentration; overlap concentration; entanglement concentration and full Gaussian concentration. The last one was nominated by author. The definitions and physical meanings of these dividing concentrations were introduced in this work, and the reason for naming of full Gaussian concentration was explained in particular. Also the essences and microscopic images of macromolecular chains conformations, of the correlative effects between segments in these solutions with different concentrations were discussed in detail. By the way the influences of the concentrations on the solution properties were discussed simply.

关 键 词：聚合物溶液 分界浓度 全高斯链浓度 溶致凝聚过程 

分 类 号：O631.2[理学—高分子化学]