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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.7b04167
|2 doi
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|a pubmed25n0936.xml
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|a (DE-627)NLM281012539
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|a (NLM)29442517
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Kato, Tomoki
|e verfasserin
|4 aut
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| 245 |
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|a Preparation of High-Density Polymer Brushes with a Multihelical Structure
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|c 2018
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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
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 10.09.2018
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|a Date Revised 10.09.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a It is well-known that a mixture of isotactic and syndiotactic polymethyl methacrylate (PMMA) forms a stereocomplex consisting of a multihelical structure in which an isotactic chain is surrounded by a syndiotactic chain. Here, we report the basic structure of the stereocomplex formed when the syndiotactic PMMA chains are tethered to a silicon substrate and form a high-density polymer brush. The influence of geometric confinement was investigated by preparing the high-density polymer brushes on a flat and spherical substrate. In both cases, mixing the untethered isotactic PMMA with the grafted syndiotactic PMMA led to the formation of a stereocomplex with a multihelical structure. Static contact angle measurements showed a hindered surface mobility at the outermost surface of the polymer brush, indicating that the stereocomplex forms a crystalline structure. A syndiotactic polymer brush with substituted fluoroalkyl groups was prepared to increase the contrast for grazing incidence wide-angle X-ray diffraction (GIWAXD) measurements. The GIWAXD results verified that the stereocomplex forms a crystalline structure oriented perpendicular to the substrate with a relatively low degree of orientation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Sato, Masanao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shimamoto, Hitoshi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Uno, Kiyu
|e verfasserin
|4 aut
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| 700 |
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|a Yokomachi, Kazutoshi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Konishi, Yuko
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kamitani, Kazutaka
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nishibori, Maiko
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ohta, Noboru
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ishige, Ryohei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a White, Kevin L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Otozawa, Nobuyuki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hirai, Tomoyasu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Takahara, Atsushi
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 34(2018), 10 vom: 13. März, Seite 3283-3288
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:34
|g year:2018
|g number:10
|g day:13
|g month:03
|g pages:3283-3288
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|u http://dx.doi.org/10.1021/acs.langmuir.7b04167
|3 Volltext
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|d 34
|j 2018
|e 10
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|h 3283-3288
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