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WangH.the (final comments 8).pdf (1.16 MB)
ETD Abstract Container
Abstract Header
Molecular Mass Dependent Mechanical Properties of Metal-free Click Hydrogels
Author Info
Wang, Huifeng
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=akron1427901118
Abstract Details
Year and Degree
2015, Master of Science, University of Akron, Polymer Science.
Abstract
A series of PEG-based hydrogels were fabricated via copper-free strain-promoted alkyne-azide cycloaddition. Characterization of the hydrogels using NMR, IR, UV and MALDI-TOF mass spectroscopy revealed the chemical structure of the small molecules and polymers. Rheology was used to determine the mechanical properties and gelation kinetics of the hydrogels. The gelation time of the hydrogels was observed by taking the crossover point between the storage modulus (G’) vs. time (t) curve the loss modulus (G”) vs. t curve. The smooth plateau of both curves confirms the plateau modulus of the hydrogels. The relationship between G’ and t exhibited molecular mass dependent behavior of PEG-based hydrogels. The differences in the gelation point and plateau modulus were attributed to the difference in the molecular mass of the PEG-based hydrogels as a result of trapped entanglements.
Committee
Matthew Becker, Dr. (Advisor)
Abraham Joy, Dr. (Committee Member)
Pages
66 p.
Subject Headings
Chemistry
Keywords
hydrogels, mechanical properties, gelation kinetics, copper-free strain-promoted alkyne-azide cycloaddition
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Citations
Wang, H. (2015).
Molecular Mass Dependent Mechanical Properties of Metal-free Click Hydrogels
[Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1427901118
APA Style (7th edition)
Wang, Huifeng.
Molecular Mass Dependent Mechanical Properties of Metal-free Click Hydrogels.
2015. University of Akron, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=akron1427901118.
MLA Style (8th edition)
Wang, Huifeng. "Molecular Mass Dependent Mechanical Properties of Metal-free Click Hydrogels." Master's thesis, University of Akron, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1427901118
Chicago Manual of Style (17th edition)
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Document number:
akron1427901118
Download Count:
666
Copyright Info
© 2015, some rights reserved.
Molecular Mass Dependent Mechanical Properties of Metal-free Click Hydrogels by Huifeng Wang is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Akron and OhioLINK.