CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Directed Self-assembly of Vertical PS-b-PMMA Nanodomains Grown on Multilayered Polyelectrolyte Films
Liu, K; Yang, CM; Yang, BM; Zhang, L; Huang, WC; Ouyang, XP; Qi, FG; Zhao, N; Bian, FG
2020
Source PublicationCHINESE JOURNAL OF POLYMER SCIENCE
ISSN0256-7679
Volume38Issue:1Pages:92-99
Subtype期刊论文
AbstractLayer-by-layer polyelectrolyte self-assembly, a common method for preparing high-quality ultra-thin films, was employed to direct the self-assembly behavior of polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA) block copolymer for the first time. Differing from the previous neutral polymer brushes anchored to silicon substrates via chemical modification, polyelectrolyte multilayers (PEMs) were anchored by electrostatic interaction and provided a stable, smooth, and neutral interface. In the present study, PS-b-PMMA was deposited on poly(acrylamide hydrochloride)/poly(acrylic acid) (PAH/PAA) PEMs prepared by layer-by-layer self-assembly to successfully yield vertical nanodomains after thermal annealing. Seven layered PEMs revealed an excellent, smooth surface, with a low roughness of 0.6 nm. The periodic structure with interlamellar spacing of 47 nm was determined by grazing-incidence small-angle X-ray scattering (GISAXS). The morphology of the PS-b-PMMA nanodomains depended on the polyanion-to-polycation concentration ratio, which is related to the interaction between the block copolymer and the substrate. Our results demonstrate that layer-by-layer self-assembly is a helpful method for the phase separation of block polymers and the fabrication of vertical, ordered nanodomains.
KeywordBLOCK-COPOLYMERS THIN-FILMS FABRICATION LAMELLAE DENSITY MORPHOLOGIES ALIGNMENT PATTERNS BRUSHES ARRAYS
DOI10.1007/s10118-019-2315-z
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32796
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Xiangtan Univ, Coll Mat Sci & Engn, Xiangtan 411105, Peoples R China
2.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
Recommended Citation
GB/T 7714
Liu, K,Yang, CM,Yang, BM,et al. Directed Self-assembly of Vertical PS-b-PMMA Nanodomains Grown on Multilayered Polyelectrolyte Films[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2020,38(1):92-99.
APA Liu, K.,Yang, CM.,Yang, BM.,Zhang, L.,Huang, WC.,...&Bian, FG.(2020).Directed Self-assembly of Vertical PS-b-PMMA Nanodomains Grown on Multilayered Polyelectrolyte Films.CHINESE JOURNAL OF POLYMER SCIENCE,38(1),92-99.
MLA Liu, K,et al."Directed Self-assembly of Vertical PS-b-PMMA Nanodomains Grown on Multilayered Polyelectrolyte Films".CHINESE JOURNAL OF POLYMER SCIENCE 38.1(2020):92-99.
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