ICCAS OpenIR
Rod-like aggregates from polystyrene-b-poly(4-vinylpyridine)b-polystyrene triblock copolymer in aqueous media
Yuan, JJ; Ma, R; Li, XQ; Zhuang, K; Cheng, SY; Jiang, L; Feng, LX; Fan, ZQ
2003-12-01
Source PublicationCHINESE JOURNAL OF POLYMER SCIENCE
ISSN0256-7679
Volume22Issue:1Pages:17-23
AbstractThe rod-like assembly from BAB block copolymer with hydrophilic middle block A in aqueous solution was described. The copolymer used is polystyrene (PS)(39)-b-poly(4-vinylpyridine)(P4VP)(98)-b-PS39 (the subscripts are the average polymerization degree of corresponding blocks) triblock copolymer with M-w/M-n = 1.15. The aggregates were characterized by transmission electron microscopy and atomic force microscopy. The dependence of rod-like aggregate formation on solvents, pH, and polymer concentrations was investigated. The rod-like aggregates were formed when using dioxane as initial solvent, while spherical micelles were formed using DMF. Elevating pH values from 4 to 5 to 7 and decreasing initial copolymer concentrations from 1.5 wt% to 1.0 wt% to 0.5 wt% were favorable for the formation of well-defined rod-like aggregates. In addition, the bicontinuous rods and lamellae were observed when preparing colloid solutions in appropriate conditions.
KeywordBlock Copolymers Self-assembly Rod-like Aggregates Bicontinuous Lamellae
Indexed BySCI
Language英语
WOS IDWOS:000188355900003
PublisherSPRINGER-VERLAG HEIDELBERG
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81486
Collection中国科学院化学研究所
Corresponding AuthorCheng, SY
Affiliation1.Hubei Univ, Coll Chem & Mat Sci, Wuhan 430062, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
3.Zhejiang Univ, Inst Polymer Sci, Hangzhou 310027, Peoples R China
Recommended Citation
GB/T 7714
Yuan, JJ,Ma, R,Li, XQ,et al. Rod-like aggregates from polystyrene-b-poly(4-vinylpyridine)b-polystyrene triblock copolymer in aqueous media[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2003,22(1):17-23.
APA Yuan, JJ.,Ma, R.,Li, XQ.,Zhuang, K.,Cheng, SY.,...&Fan, ZQ.(2003).Rod-like aggregates from polystyrene-b-poly(4-vinylpyridine)b-polystyrene triblock copolymer in aqueous media.CHINESE JOURNAL OF POLYMER SCIENCE,22(1),17-23.
MLA Yuan, JJ,et al."Rod-like aggregates from polystyrene-b-poly(4-vinylpyridine)b-polystyrene triblock copolymer in aqueous media".CHINESE JOURNAL OF POLYMER SCIENCE 22.1(2003):17-23.
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