Interactions between amphiphilic polymers and cyclodextrins

285 p.

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Main Author: Liao, Dongsheng
Other Authors: Tam Kam Chiu, Michael
Format: Theses and Dissertations
Published: 2010
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Online Access:https://hdl.handle.net/10356/35990
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-359902023-03-11T17:52:38Z Interactions between amphiphilic polymers and cyclodextrins Liao, Dongsheng Tam Kam Chiu, Michael School of Mechanical and Aerospace Engineering DRNTU::Engineering::Materials::Organic/Polymer electronics 285 p. The solution properties of various types of telechelic hydrophobically modified ethylene oxide urethane polymer (HEUR) in the presence of cyclodextrins were examined. Methylated (3 cyclodextrin (m-pCD) could effectively reduce the steady shear viscosity and the dynamic moduli of HEUR aqueous solutions. It was found that m- PCD interacts with HEUR in three progressive steps. At very low m-(3CD concentrations, m-pCD encapsulates the hydrophobes of looping HEUR chains, which destabilizes the transient network, while maintaining the number of mechanically active chains. However, the m-pCD/HEUR complex solutions become more sensitive to shear stress. At moderate m-pCD concentrations, m-pCD begins to deactivate the bridging chains resulting in a reduction in the number of mechanically active chains and this further weakens the transient network. Finally, when m-pCD is in excess, the network Methylated P-Cyclodextrin could effectively reduce the steady shear viscosity and dynamic moduli of HEUR aqueous solutions. DOCTOR OF PHILOSOPHY (MAE) 2010-04-23T02:22:12Z 2010-04-23T02:22:12Z 2007 2007 Thesis Liao, D. S. (2007). Interactions between amphiphilic polymers and cyclodextrins. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/35990 10.32657/10356/35990 application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
topic DRNTU::Engineering::Materials::Organic/Polymer electronics
spellingShingle DRNTU::Engineering::Materials::Organic/Polymer electronics
Liao, Dongsheng
Interactions between amphiphilic polymers and cyclodextrins
description 285 p.
author2 Tam Kam Chiu, Michael
author_facet Tam Kam Chiu, Michael
Liao, Dongsheng
format Theses and Dissertations
author Liao, Dongsheng
author_sort Liao, Dongsheng
title Interactions between amphiphilic polymers and cyclodextrins
title_short Interactions between amphiphilic polymers and cyclodextrins
title_full Interactions between amphiphilic polymers and cyclodextrins
title_fullStr Interactions between amphiphilic polymers and cyclodextrins
title_full_unstemmed Interactions between amphiphilic polymers and cyclodextrins
title_sort interactions between amphiphilic polymers and cyclodextrins
publishDate 2010
url https://hdl.handle.net/10356/35990
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