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Giant Molecular Shape Amphiphiles: Click Synthesis, Supramolecular Assembly, and Beyond

Dong, Xuehui
http://rave.ohiolink.edu/etdc/view?acc_num=akron1384774671

Abstract Details

2013, Doctor of Philosophy, University of Akron, Polymer Science.
The capability of creating ordered patterns in a controlled manner is one of the key requirements to realize future electronic, optical, and magnetic devices and sensors that are composed of such blocks. The `bottom-up’ concept has recently gained significant technological importance due the possibility to fabricate nanostruc- tures in a fast, simple, parallel and flexible manner via self-assembly of small building blocks. In this respect, polymers are particularly promising due to their ability to self-assemble into thermodynamically highly stable domains with precisely controlled shapes and domain sizes. Traditional work on this area focuses only on the inter- actions between amphiphilic blocks, while the geometrical effects are not taken into sufficient consideration. Therefore, it could be of great importance to study assembly and phase behavior when combining traditional polymers with nanoparticles which possess precisely defined structures, unique shapes, and outstanding properties, e.g. fullerene, dendron, and polyhedral oligomeric silsesquioxane (POSS). In this dissertation, precisely defined giant molecular shape amphiphiles with versatile functionalities, diverse architectures, and variable composition were synthe- sized via a combination of anionic polymerization, controlled/living polymerization and `click’ chemistry with these building blocks. The interplay between polymers and nanoparticles brings us with new phenomena which broaden our fundamental knowledge. Three examples, i.e., precisely defined half-stemmed crystals with exact location of defects; asymmetric phase diagram with sub-10 nm feature sizes; and hier- archical structures with highly stretched polymer chains, will be discussed in details to illustrate the importance of the geometrical effects.
Stephen Cheng, Dr. (Advisor)
Toshikazu Miyoshi, Dr. (Committee Member)
Matthew Becker, Dr. (Committee Member)
Chrys Wesdemiotis, Dr. (Committee Member)
Gong Xiong, Dr. (Committee Member)
173 p.
Physics; Polymer Chemistry; Polymers
Shape Amphiphiles; Polymer; POSS; Fullerene; Self-assembly; Crystal

Recommended Citations

Citations

  • Dong, X. (2013). Giant Molecular Shape Amphiphiles: Click Synthesis, Supramolecular Assembly, and Beyond [Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1384774671

    APA Style (7th edition)

  • Dong, Xuehui. Giant Molecular Shape Amphiphiles: Click Synthesis, Supramolecular Assembly, and Beyond . 2013. University of Akron, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1384774671.

    MLA Style (8th edition)

  • Dong, Xuehui. "Giant Molecular Shape Amphiphiles: Click Synthesis, Supramolecular Assembly, and Beyond ." Doctoral dissertation, University of Akron, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1384774671

    Chicago Manual of Style (17th edition)

akron1384774671
331
© 2013, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.