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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c02132
|2 doi
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Hong, Jia-Wen
|e verfasserin
|4 aut
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| 245 |
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|a Distributions of Deuterated Polystyrene Chains in Perforated Layers of Blend Films of a Symmetric Polystyrene-block-poly(methyl methacrylate)
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 09.11.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a We have examined the spatial distributions of polymer chains in blend films of weakly segregated polystyrene-block-poly(methyl methacrylate) [P(S-b-MMA)] and deuterated polystyrene (dPS). By fine-tuning the composition (ϕPS+dPS = 63.8 vol %) of the total PS/dPS component and annealing temperature (230 and 270 °C), P(S-b-MMA)/dPS blend films mainly form perforated layers with a parallel orientation (hereafter PLs//). The distributions of dPS in PLs// were probed by grazing-incidence small-angle neutron scattering (GISANS) and time-of-flight neutron reflectivity (ToF-NR). GISANS and ToF-NR results offer evidence that dPS chains preferentially locate at the free surface and within the PS layers for blend films that were annealed at 230 °C. Upon annealing at 270 °C, dPS chains distribute within PS layers and perforated PMMA layers. Nevertheless, dPS chains still retain a surface preference for thin films. In contrast, such surface segregation of dPS chains is prohibited for thick films when annealed at 270 °C
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|a Journal Article
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|a Jian, Yi-Qing
|e verfasserin
|4 aut
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| 700 |
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|a Liao, Yin-Ping
|e verfasserin
|4 aut
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| 700 |
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|a Hung, Hsiang-Ho
|e verfasserin
|4 aut
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| 700 |
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|a Huang, Tzu-Yen
|e verfasserin
|4 aut
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|a Nelson, Andrew
|e verfasserin
|4 aut
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| 700 |
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|a Tsao, I-Yu
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Chun-Ming
|e verfasserin
|4 aut
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| 700 |
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|a Sun, Ya-Sen
|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 37(2021), 44 vom: 09. Nov., Seite 13046-13058
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:37
|g year:2021
|g number:44
|g day:09
|g month:11
|g pages:13046-13058
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|u http://dx.doi.org/10.1021/acs.langmuir.1c02132
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