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SOFT POLYELECTROLYTE HYDROGEL AS VERSATILE MATERIAL IN DIFFERENT APPLICATION

WANG, YUJEN
http://orcid.org/0000-0001-9035-9049
http://rave.ohiolink.edu/etdc/view?acc_num=case1469459792

Abstract Details

2016, Master of Sciences, Case Western Reserve University, Macromolecular Science and Engineering.
The principal biochemical role of adenosine triphosphate (ATP) involves the driving of metabolic processes linked to its large, negative free energy of hydrolysis. However, less well known is ATP’s ability to act as a chelator for divalent metal ions. We recently have become very interested in poly(acrylic acid) (PAA) gels as a model system for biomimicking physiological systems such as muscles and nerves, especially the ability of PAA to switch from a compact to a swollen gel as the result of divalent/monovalent ion exchange. Swelling of calcium ion-containing gels can be accomplished using common chelators such as EDTA or citrate, but it was found in the present work that such gels efficiently re-swell using ATP as the chelator. This is of great interest because two biochemically-significant species, Ca2+ and ATP, can be used to switch PAA gels between compact and swollen states in water. A comparison of the relative abilities of EDTA, citrate and ATP to swell calcium ion-contracted gels is presented. 9 In addition polymer such as PAA are wet hydrogel materials and can serve as artificial muscles which have recently become a popular topic of research. While applying a voltage, hydrogels deform and translate electrical power to mechanical power. However, Ionic Polymer Metal Composites (IPMC) have to be wet in order to function well. PAA is a new candidate for IPMC, as it is a biocompatible polymer and can absorb a lot of water. Thus, crosslinked PAA hydrogel networks can serve as new IPMC materials. Toward that end, this research also introduces glycerol as a component of PAA gels for solving two problems at the same time, namely mechanical and rheological modulation of such hydrogels.
Gary Wnek (Committee Chair)
Joao Maia (Advisor)
49 p.
Polymer Chemistry; Polymers
PAA, Hydrogel, rheology, chelation, ATP, Calcium, contraction, expansion, shrinkage, polymer physical chemistry, debye length,

Recommended Citations

Citations

  • WANG, Y. (2016). SOFT POLYELECTROLYTE HYDROGEL AS VERSATILE MATERIAL IN DIFFERENT APPLICATION [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1469459792

    APA Style (7th edition)

  • WANG, YUJEN. SOFT POLYELECTROLYTE HYDROGEL AS VERSATILE MATERIAL IN DIFFERENT APPLICATION. 2016. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1469459792.

    MLA Style (8th edition)

  • WANG, YUJEN. "SOFT POLYELECTROLYTE HYDROGEL AS VERSATILE MATERIAL IN DIFFERENT APPLICATION." Master's thesis, Case Western Reserve University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1469459792

    Chicago Manual of Style (17th edition)

case1469459792
637
© 2016, some rights reserved.Creative Commons License SOFT POLYELECTROLYTE HYDROGEL AS VERSATILE MATERIAL IN DIFFERENT APPLICATION by YUJEN 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 Case Western Reserve University School of Graduate Studies and OhioLINK.