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DE-627 |
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20231223065253.0 |
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231223s2005 xx ||||| 00| ||eng c |
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|a pubmed24n0514.xml
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|a (DE-627)NLM154068020
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|a (NLM)15752060
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Urushihara, Yoshimasa
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Effects of film-forming conditions on surface properties and structures of diblock copolymer with perfluoroalkyl side chains
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| 264 |
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1 |
|c 2005
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 14.02.2006
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|a Date Revised 08.03.2005
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Film-forming conditions (cast solvents and film-forming technique: casting or spin-coating) are found to regulate the surface free energy of a diblock copolymer composed of methyl methacrylate and 2-perfluorooctylethyl methacrylate (PMMA-b-PFEMA). The surface properties and structures both in the solid state and in the solution of this polymer were investigated using dynamic contact angle, X-ray photoelectron spectroscopy, X-ray diffraction, reflection-adsorption Fourier transform infrared spectroscopy, dynamic light scattering, and surface pressure measurements. The surface free energy of the PMMA-b-PFEMA film drastically changed from 7.8 to 28.4 mJ/m(2), depending on the film-forming conditions. For the film cast from the micellar solution, the surface free energy is governed by the unimers, localized at the air-solution interface. On the other hand, higher amounts of micelles with the laid perfluoroalkyl side chains were exposed on the surface of the spin-coated film, which yielded a relatively high surface free energy. These findings demonstrated a significant effect of the in-solution molecular association on the surface structures and properties of the solid. In particular, the in-solution unimers played the most important role in lowering the surface free energy of the PMMA-b-PFEMA films
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|a Journal Article
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1 |
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|a Nishino, Takashi
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 21(2005), 6 vom: 15. März, Seite 2614-8
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:21
|g year:2005
|g number:6
|g day:15
|g month:03
|g pages:2614-8
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| 912 |
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|a GBV_ILN_721
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| 951 |
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|a AR
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| 952 |
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|d 21
|j 2005
|e 6
|b 15
|c 03
|h 2614-8
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