Formation of fibrillar aggregates in concentrated solutions of rigid-chain amphiphilic macromolecules with fixed torsion and bend angles

被引：7
作者：
Glagolev, M. K. [1 ]
Vasilevskaya, V. V. [2 ]
Khokhlov, A. R. [1 ,2 ]
机构：
[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia
[2] Russian Acad Sci, AN Nesmeyanov Organoelement Cpds Inst, Moscow 119991, Russia
来源：
POLYMER SCIENCE SERIES A | 2011年 / 53卷 / 08期
基金：
俄罗斯基础研究基金会;
关键词：
2-DIMENSIONAL CLASSIFICATION; PARTITIONING PROPERTIES; HYDROPHILIC UNITS; AQUEOUS-SOLUTIONS; COPOLYMERS; MONOMERS; MICELLES; BUNDLES;
D O I：
10.1134/S0965545X11080037
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The molecular-dynamics method is used to study solutions of amphiphilic macromolecules with a local helical structure. A deterioration in the solvent quality in concentrated solutions of these macromolecules leads to the formation of intermolecular fibrillar helix bundles with approximately the same lengths and aggregation numbers. The number of chains in a bundle is determined by parameters that characterize the local structure and is weakly dependent on the length of the macromolecule and the volume fraction of the polymer in the solution. In racemic mixtures of these macromolecules, a deterioration in the solvent quality leads to effective demixing; that is, the resultant fibrillar bundles generally contain macromolecules of exclusively the same chirality.
引用
收藏
页码：733 / 743
页数：11
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