TEMPERATURE CONCENTRATION DIAGRAM FOR A SOLUTION OF STAR-BRANCHED MACROMOLECULES
TEMPERATURE CONCENTRATION DIAGRAM FOR A SOLUTION OF STAR-BRANCHED MACROMOLECULES
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DOI：
10.1016/0032-3861(86)90076-5
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发表时间：
1986-07-01
期刊：
影响因子：
4.6
通讯作者：
BORISOV, OV
中科院分区：
文献类型：
--
作者：
BIRSHTEIN, TM;ZHULINA, EB;BORISOV, OV
利用标度概念构建了星形支化聚合物溶液的温度-浓度图。考虑了溶剂质量、溶液浓度、星形支链的刚性、数量和聚合度等因素。得到的图包含三种区域类型：Ix-稀溶液中孤立的恒星；IIx-星枝的半稀溶液(下标表示体积相互作用)；以及III-不透(或几乎不透)星的紧密堆积系统。准小球区域III的特征是星体大小普遍依赖于溶液浓度c和聚合度N：R∼(Nc)13，与溶剂的质量无关。
The temperature-concentration diagram of a star-branched macromolecule solution was constructed using scaling concepts. The quality of the solvent, solution concentration, the rigidity of star branches, their number and degree of polymerization were taken into account. The diagram obtained contains three regime types: I x-isolated stars in a dilute solution; II x-a semidilute solution of star branches (subscript characterizes the volume interactions); and III-the close packed system of impermeable (or almost impermeable) stars. Quasiglobular regime III is characterized by the universal dependence of star size on the concentration of the solution c and degree of polymerization N: R∼(N c) 1 3 independently of the quality of the solvent.