Conformational aspects and intramolecular phase separation of alternating copolymacromonomers: A computer simulation study

被引:27
作者
de Jong, J
ten Brinke, G
机构
[1] Univ Groningen, Polymer Chem Lab, NL-9747 AG Groningen, Netherlands
[2] Univ Groningen, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands
关键词
bond fluctuation model; bottle brushes; Janus cylinders; Monte Carlo simulation; phase separation;
D O I
10.1002/mats.200300052
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Using the bond fluctuation model (BFM), simulations have been performed on molecular bottle brushes with two chemically different types of side chains. In the first part of this work, rigidity of the backbone is imposed. The influence of solvent quality and side chain length on the intramolecular phase separation of side chain material, leading to Janus cylinders, has been investigated and compared to theoretical predictions. In the second part of this work, the restriction of rigidity for the backbone is relaxed. In a poor solvent, the side chain material collapses into a globular state. Several globules containing each one type of side chain material are connected together by backbone material. When imposing different solvent condition for both types of side chains, a bending of the backbone is found as predicted by theory and observed in very recent experiments.
引用
收藏
页码:318 / 327
页数:10
相关论文
共 51 条
[1]   The synthesis of densely grafted copolymers by atom transfer radical polymerization [J].
Beers, KL ;
Gaynor, SG ;
Matyjaszewski, K ;
Sheiko, SS ;
Möller, M .
MACROMOLECULES, 1998, 31 (26) :9413-9415
[2]  
BIRSHTEIN TM, 1987, VYSOKOMOL SOEDIN A, V29, P1293
[3]   Synthesis of molecular brushes with block copolymer side chains using atom transfer radical polymerization [J].
Börner, HG ;
Beers, K ;
Matyjaszewski, K ;
Sheiko, SS ;
Möller, M .
MACROMOLECULES, 2001, 34 (13) :4375-4383
[4]   THE BOND FLUCTUATION METHOD - A NEW EFFECTIVE ALGORITHM FOR THE DYNAMICS OF POLYMERS IN ALL SPATIAL DIMENSIONS [J].
CARMESIN, I ;
KREMER, K .
MACROMOLECULES, 1988, 21 (09) :2819-2823
[5]   Amphiphilic cylindrical core-shell brushes via a "grafting from" process using ATRP [J].
Cheng, GL ;
Boker, A ;
Zhang, MF ;
Krausch, G ;
Müller, AHE .
MACROMOLECULES, 2001, 34 (20) :6883-6888
[6]   INTERDIFFUSION AND SELF-DIFFUSION IN POLYMER MIXTURES - A MONTE-CARLO STUDY [J].
DEUTSCH, HP ;
BINDER, K .
JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (03) :2294-2304
[7]   EQUATION OF STATE FOR ATHERMAL LATTICE CHAINS IN A 3D FLUCTUATING BOND MODEL [J].
DEUTSCH, HP ;
DICKMAN, R .
JOURNAL OF CHEMICAL PHYSICS, 1990, 93 (12) :8983-8990
[8]   CRITICAL-BEHAVIOR AND CROSSOVER SCALING IN SYMMETRICAL POLYMER MIXTURES - A MONTE-CARLO INVESTIGATION [J].
DEUTSCH, HP ;
BINDER, K .
MACROMOLECULES, 1992, 25 (23) :6214-6230
[9]  
Djalali R, 1999, MACROMOL RAPID COMM, V20, P444, DOI 10.1002/(SICI)1521-3927(19990801)20:8<444::AID-MARC444>3.0.CO
[10]  
2-B