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RATIONAL CONTROLLED SELF-ASSEMBLY BEHAVIOR OF INORGANIC-ORGANIC HYBRIDS IN SOLUTION

Chu, Yang
http://rave.ohiolink.edu/etdc/view?acc_num=akron1488282260459173

Abstract Details

2017, Doctor of Philosophy, University of Akron, Polymer Science.
In the past several decades, self-assembly of amphiphiles in solutions has attracted great interest of researchers due to their unique properties and applications. Besides the well-explored small-molecule surfactants and block-copolymers, giant surfactants also known as inorganic-organic amphiphilic hybrids have been regarded as a new attractive topic because they contain functional (e.g., catalytic, magnetic, oxidation-reduction redox or biologically active) inorganic nanoparticles/molecular clusters which simultaneously act as surfactant polar head groups. The self-assembly/disassembly can be triggered by different kinds of external stimuli like light, heat, magnetic field or solution polarity. Besides, the morphology and size of the assemblies are also tunable by the experimental conditions and molecular structures. In this dissertation, three representative kinds of hybrids, which include multi-headed giant surfactants based on polystyrene (PS)-polyhedral oligomeric silsesquioxane (POSS) conjugates with different number and topology of POSS heads, triangular shaped PS-POSS hybrids with different length of PS linkers and spiropyran (SP)-polyoxometalate (POM)-alkyl hybrids, are prepared to study the effect of hydrophilic head groups, hydrophobic linkers and change of hydrophobicity on the self-assembly behavior. Dynamic light scattering (DLS) and static light scattering (SLS) are used during the whole process of self-assembly to suggest the size and morphology of the assemblies and electron microscopy and atomic force microscopy confirm the results obtained by light scattering techniques. We found the rational control of the self-assembly behavior of inorganic-organic hybrids in solution can be successfully achieved due to their multiple-responsive property on light, solvent polarity, molecular structures and solution concentration.
Tianbo Liu (Advisor)
Stephen Cheng (Committee Chair)
Toshikazu Miyoshi (Committee Member)
Mesfin Tsige (Committee Member)
Jie Zheng (Committee Member)
169 p.
Chemistry; Polymer Chemistry; Polymers
Inorganic-organic hybrid; Self-assembly behavior; polyoxometalates;

Recommended Citations

Citations

  • Chu, Y. (2017). RATIONAL CONTROLLED SELF-ASSEMBLY BEHAVIOR OF INORGANIC-ORGANIC HYBRIDS IN SOLUTION [Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1488282260459173

    APA Style (7th edition)

  • Chu, Yang. RATIONAL CONTROLLED SELF-ASSEMBLY BEHAVIOR OF INORGANIC-ORGANIC HYBRIDS IN SOLUTION. 2017. University of Akron, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1488282260459173.

    MLA Style (8th edition)

  • Chu, Yang. "RATIONAL CONTROLLED SELF-ASSEMBLY BEHAVIOR OF INORGANIC-ORGANIC HYBRIDS IN SOLUTION." Doctoral dissertation, University of Akron, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1488282260459173

    Chicago Manual of Style (17th edition)

akron1488282260459173
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© 2017, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.