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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1021/la901159r
|2 doi
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|a pubmed24n0637.xml
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|a (DE-627)NLM191034924
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|a (NLM)19719210
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Ueki, Takeshi
|e verfasserin
|4 aut
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1 |
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|a Photoisomerization-induced tunable LCST phase separation of azobenzene-containing polymers in an ionic liquid
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 13.10.2009
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|a Date Revised 15.11.2012
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|a published: Print
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|a Citation Status MEDLINE
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|a 4-phenylazophenyl methacrylate (AzoMA) and benzyl methacrylate (BnMA) were copolymerized to produce multistimuli-responsive polymers (P(AzoMA-r-BnMA)s) in a hydrophobic ionic liquid (IL), 1-ethyl-3-methylimidazolium bis(trifluoromethane sulfonyl)imide ([C2mim][NTf2]), as the solvent. P(AzoMA-r-BnMA)s with a maximum of ca. 4 mol % AzoMA were soluble in [C2mim][NTf2] at low temperatures, and they underwent lower critical solution temperature (LCST) phase separation with an increase in temperature. Under UV and visible light irradiation, P(AzoMA-r-BnMA)s underwent reversible photochromism of trans-to-cis and cis-to-trans isomerization, respectively. The LCST temperature differences between trans- and cis-form polymers in the IL were as large as 22 degrees C. Reversible photoinduced phase separation of the polymers was achieved at a certain temperature; at this temperature, the cis-form polymers were soluble in the IL, but the trans-form polymers were not
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Azo Compounds
|2 NLM
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|a Ionic Liquids
|2 NLM
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|a Polymers
|2 NLM
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|a azobenzene
|2 NLM
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| 650 |
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|a F0U1H6UG5C
|2 NLM
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1 |
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|a Yamaguchi, Ayuko
|e verfasserin
|4 aut
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1 |
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|a Ito, Naoki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kodama, Koichi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sakamoto, Junji
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ueno, Kazuhide
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kokubo, Hisashi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Watanabe, Masayoshi
|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 25(2009), 16 vom: 18. Aug., Seite 8845-8
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:25
|g year:2009
|g number:16
|g day:18
|g month:08
|g pages:8845-8
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|u http://dx.doi.org/10.1021/la901159r
|3 Volltext
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