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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c02230
|2 doi
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|a pubmed24n1161.xml
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Shi, Xiaoyu
|e verfasserin
|4 aut
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| 245 |
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|a Surface Coassembly of Binary Mixed Polymer Brushes and Linear Block Copolymer Chains
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|c 2022
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 22.11.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Binary mixed polymer brushes (BMPBs) are two different homopolymer chains that are covalently anchored to the solid surfaces at high grafting densities. One feature of the BMPBs is the unique ability to make surface phase separation under external stimuli. In this research, we demonstrate that different surface nanostructures can be fabricated by surface coassembly of BMPBs and free block copolymer (BCP) chains. Polystyrene/poly(2-(dimethylamino)ethyl methacrylate) (PS/PDMAEMA) BMPBs on silica particles (PS-PDMAEMA-SiO2) are synthesized by a two-step "grafting to" approach. PDMAEMA-b-PS block copolymer (BCP) chains and PS-PDMAEMA-SiO2 make surface self-assembly and a variety of surface nanostructures are formed in methanol. The grafting densities of PS and PDMAEMA brushes, solvent, and the BCP structures all exert significant influences on the surface morphology. With an increase in PDMAEMA grafting density, the surface structures change from perforated layers, to rods, and to spherical surface micelles (s-micelles). The PS grafting density also exerts an effect on the formation of the surface nanostructures. At low PS grafting density, sparsely distributed s-micelles are produced, and at high density, densely distributed s-micelles are observed. Based on transmission electron microscopy and scanning electron microscopy results, a surface phase diagram is constructed, which provides a guide to the surface morphology control
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|a Journal Article
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1 |
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|a Bian, Tianshun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Li
|e verfasserin
|4 aut
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| 700 |
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|a Zhao, Hanying
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 38(2022), 46 vom: 22. Nov., Seite 14217-14226
|w (DE-627)NLM098181009
|x 1520-5827
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| 773 |
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|g volume:38
|g year:2022
|g number:46
|g day:22
|g month:11
|g pages:14217-14226
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|u http://dx.doi.org/10.1021/acs.langmuir.2c02230
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