EFFECT OF POLYDISPERSITY ON THE SELF-ASSEMBLY OF AMPHIPHILIC DIBLOCK COPOLYMER IN A SELECTIVE SOLVENT: A MONTE CARLO STUDY

	EFFECT OF POLYDISPERSITY ON THE SELF-ASSEMBLY OF AMPHIPHILIC DIBLOCK COPOLYMER IN A SELECTIVE SOLVENT: A MONTE CARLO STUDY
	Cui J ; Zhang XX ; Han YY ; Jiang W
刊名	acta polymerica sinica
	2011
期号	4 页码:421-426
关键词	DISSIPATIVE PARTICLE DYNAMICS BLOCK LENGTH DISTRIBUTION ABA TRIBLOCK COPOLYMER POLY(ACRYLIC ACID) VESICLES MORPHOLOGIES SIMULATION MICROPHASE
ISSN号	1000-3304
通讯作者	cui j
中文摘要	the effect of polydispersity on the self-assembly of amphiphilic diblock copolymer in a selective solvent was studied by means of monte carlo simulation. the polydisperse diblock copolymer system was constructed via the mixing of three amphiphilic diblock copolymer chains different in length, i. e., a(2)b(2), a(2)b(6) and a(2)b(10). the simulation results show that the micelle morphologies formed by ab diblock copolymers in a selective solvent changed from vesicle to lamellae, then to spheres with an increase in polydispersity index (pdi) from 1. 0 to 1. 4. through the analysis of the variations of the number and fractions of free single chains with the increase of pdi in each system, it is found that the number of short chains (i. e. a(2)b(2)) which aggregate into micelles increased with an increasing pdi. meanwhile, the self-assembly processes of diblock copolymers with different pdi in a selective solvent reveal that the increasing number of short chains can increase the surface area of the micelles,leading to a disadvantage for the fusion between small micelles during the self-assembly. the increase of the surface area of micelles is the main reason of the morphological transition from large-sized vesicles to small-sized spheres when the pdi is increased. these simulation results indicate that the micelle morphologies and their mutual transitions in a selective solvent can be tuned by the control of the polydispersity of ab diblock copolymers.
收录类别	SCI收录期刊论文
语种	中文
WOS记录号	WOS:000290555900014
公开日期	2012-06-11
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/44690]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Cui J,Zhang XX,Han YY,et al. EFFECT OF POLYDISPERSITY ON THE SELF-ASSEMBLY OF AMPHIPHILIC DIBLOCK COPOLYMER IN A SELECTIVE SOLVENT: A MONTE CARLO STUDY[J]. acta polymerica sinica,2011(4):421-426.
APA	Cui J,Zhang XX,Han YY,&Jiang W.(2011).EFFECT OF POLYDISPERSITY ON THE SELF-ASSEMBLY OF AMPHIPHILIC DIBLOCK COPOLYMER IN A SELECTIVE SOLVENT: A MONTE CARLO STUDY.acta polymerica sinica(4),421-426.
MLA	Cui J,et al."EFFECT OF POLYDISPERSITY ON THE SELF-ASSEMBLY OF AMPHIPHILIC DIBLOCK COPOLYMER IN A SELECTIVE SOLVENT: A MONTE CARLO STUDY".acta polymerica sinica .4(2011):421-426.