Molecular-recognition-induced phase transitions of two thermo-responsive polymers with pendent beta-cyclodextrin groups

作者：Yang Mei; Chu Liang Yin^*; Xie Rui; Wang Chun

来源：Macromolecular Chemistry and Physics, 2008, 209(2): 204-211.

DOI：10.1002/macp.200700359

• host-guest systems
• lower critical solution temperature
• molecular recognition
• phase transitions
• thermo-responsive polymers

PNIPAM-based thermo-responsive polymers with pendent beta-cyclodextrin groups were synthesized and the molecular-recognition-induced phase-transition behavior of fabricated polymers was investigated. The results showed that the thermo-sensitive PNG-ECD and PNG-HCD polymers could significantly recognize the guest ANS molecules, and their LCSTs in ANS c: aqueous solutions were lower than those in blank aqueous solution. The more ANS could be recognized by the polymer, the lower was the LCST of the polymer. The guest NS molecules had an opposite influence on the LCSTs of the PNG-ECD and PNG-HCD polymers, because the complexation between CD and NS slightly enlarged the hydrophilic moiety of thet polymers.
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• 出版日期2008-1-21
• 单位四川大学