Persistence Length of Dendritic Molecular Brushes

被引：22

作者：

Borisov, O. V. ^{[1
,2
]}

Zhulina, E. B. ^{[2
]}

Birshtein, T. M. ^{[2
,3
]}

机构：

[1] IPREM UMR CNRS UPPA 5254, F-64053 Pau, France

[2] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia

[3] St Petersburg State Univ, Dept Phys, St Petersburg 198504, Russia

来源：

ACS MACRO LETTERS | 2012年 / 1卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

CYLINDRICAL POLYMER BRUSHES; ANGLE NEUTRON-SCATTERING; BOTTLE-BRUSHES; MONTE-CARLO; LYOTROPIC BEHAVIOR; CONFORMATION; MACROMOLECULES; SIMULATION; STIFFNESS; DILUTE;

D O I：

10.1021/mz3003903

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

On the basis of mean-field theory, we predict that molecular brushes with dendritic side chains ("dendronized polymers") may exhibit the behavior of semirigid polymers capable of lyotropic odering. The apparent persistence length of these molecular brushes is governed by the interactions between dendritic grafts and may significantly exceed the characteristic brush thickness. Compared to bottle-brushes with linear grafts, manifestation of the induced rigidity in molecular brushes with dendritic branches is expected at smaller degrees of polymerization of the grafts. Under good solvent conditions, the induced rigidity depends solely on the number of side chain monomers per unit length of backbone and the second virial coeffcient of monomer-monomer interactions, irrespective of graft topology.

引用

页码：1166 / 1169

页数：4

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