Interactions between amphiphilic polymers and cyclodextrins
285 p.
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2010
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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 |
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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 |
| _version_ |
1761781950991826944 |