Abstract：The self-assembly behaviors of the rod-coil-rod (PANI)98-(PEG)136-(PANI)98 triblock copolymer are investigated in different solvents, such as N-methyl-2-pyrrolidone (NMP), dimethyl formamide (DMF), ethanol and water. The effects of solvents, concentration and ultrasonic irradiation on self-assembly are discussed. The results indicate that the triblock copolymer forms particles, rods, fiber, networks and fiber bands in the above solvents, respectively. Especially, the triblock copolymer can form a multi-layer, tri-dimensional fibrous network and a petaline structure from the mono-layer fibrous network with the increase of its concentration in ethanol. Also, the ultrasonic irradiation has a great effect on the self-assembly of the triblock copolymer.
出版日期: 2008-03-05
引用本文:
. Control on self-assembly structures of rod-coil-rod
(PANI)-(PEG)-(PANI) triblock copolymer[J]. Frontiers of Chemical Engineering in China - Selected Publications from Chinese Universities, 2008, 2(1): 85-88.
YANG Zhifang, WU Jingao, YANG Yingkui, ZHOU Xingping, XIE Xiaolin. Control on self-assembly structures of rod-coil-rod
(PANI)-(PEG)-(PANI) triblock copolymer. Front. Chem. Sci. Eng., 2008, 2(1): 85-88.
Zhang L H Advancesin ChemistryBeijingChemical Industry Press 2005 292306(in Chinese)
2
He G G Zeng F D Xu P Liu M X Shi H M Recent developments in the study of nanostructuralself-assembled macromoleculesJ Funct Mater 2003 34(3)258261(in Chinese)
3
Radzilowsi L H Wu J L Stupp S I Monodisperse “rodcoil” copolymersMacromolecules 1993 26(4)879882
4
He H F Cao H Q Wan X H Tu Y F Chen X F Zhou Q F Synthesisof PEO-PHP-PEO blue-light emitting triblock copolymer and its orderedaggregates in waterChin Sci Bull 2003 48(14)14851490(in Chinese)
5
Lee M Cho B K Zin W C Supramolecular structures from rod-coil block copolymersChem Rev 2001 101(12)38693892
6
Klok H A Lecommandoux S Supramolecular Materials via block copolymer self-assemblyAdv Mater 2001 13(16)12171229
7
Zhu J Jiang W Self-assembly of ABC triblockcopolymer into giant segmented wormlike micelles in dilute solutionMacromolecules 2005 38(22)93159323
8
Zhang L Yu K Eisenberg A Ion-induced morphological changes in “crew-cut”aggregates of amphiphilic block copolymersScience 1996 272(5269)17771779
9
Mao L B Synthesisand self-assembly behaviors of rod-coil PANI/PEG block copolymers.Dissertation for the Master Degree.Wuhan:Huazhong University of Science and Technology 2006 14–27(in Chinese)
10
Mao L B Yang Y K Zhou X P Xie X L Zeng F D Self-assembly of (PANI)(98)-(PEG)(136)-(PANI)(98) triblock copolymersPolym Mater Sci Eng 2007 23(1)128132(in Chinese)
11
Zhang L Eisenberg A Multiple morphologies and characteristicsof “crew-cut” micelle-like aggregates of polystyrene-b-poly(acrylic acid) diblock copolymers inaqueous solutionsJ Am Chem Soc 1996 118(13)31683181
