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01000naa a22002652 4500 |
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DE-627 |
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20231223105900.0 |
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231223s2006 xx ||||| 00| ||eng c |
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|a pubmed24n0553.xml
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|a (DE-627)NLM166000205
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|a (NLM)17042556
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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 Spinks, Geoffrey M
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Swelling behavior of chitosan hydrogels in ionic liquid-water binary systems
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 19.09.2007
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a The swelling behavior of chitosan hydrogels in ionic liquid-water binary systems was studied using hydrophilic room-temperature ionic liquids (RTILs) to elucidate the swelling mechanism of chitosan hydrogels. No penetration of RTIL into a dry chitosan material was observed. Swelling was achieved by soaking in water-RTIL binary mixtures, with larger swelling observed at higher water contents. In one instance, the binary mixture was acidic and produced larger than expected swelling due to the dissociation of the amine groups in the chitosan. The equilibrium binary system content behavior of the chitosan hydrogels depended upon the amount of free water, which is a measure of the number of water molecules that do not interact with the ionic liquid. After evaporation of water, remnant RTIL remained in the chitosan network and hardness testing indicated a plasticization effect, suggesting that the RTIL molecularly mixed with the chitosan. Chitosan hydrogels containing only RTIL were prepared by dropping pure RTIL onto a fully preswollen hydrogel followed by water evaporation. This method may be a useful means for preparing air-stable swollen chitosan gels
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Hydrogels
|2 NLM
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|a Ions
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Chitosan
|2 NLM
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| 650 |
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|a 9012-76-4
|2 NLM
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| 700 |
1 |
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|a Lee, Chang Kee
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wallace, Gordon G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Sun I
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Seon Jeong
|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 22(2006), 22 vom: 24. Okt., Seite 9375-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:22
|g year:2006
|g number:22
|g day:24
|g month:10
|g pages:9375-9
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