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New Insight into Supramolecular Structure Formation of Polyhedral Oligomeric Silsequioxane (POSS) based ABn Type Giant Shape Amphiphiles: Linker’s Effects

Zhang, Ruimeng

Abstract Details

2016, Master of Science, University of Akron, Polymer Science.
Giant molecules have become a hot research topic in recent years. Among the family of giant molecules, a novel set of ABn type giant shape amphiphiles, which are constructed by one hydrophilic POSS cage with several hydrophobic POSS cages have been demonstrated to be an ideal platform to achieve various supramolecular structures. Besides the common structures (such as double gyroid (DG), hexagonally packed cylinders (HEX), body center cubic (BCC) etc.), several Frank-Kasper phases (A15, Sigma phase) as well as 12-fold quasi crystal phase can also be observed by varying the number of hydrophobic POSS cage. Obviously, there are two major factors in this system, one is the number of POSS cage (n), another one is the linker between them. Herein, we focused on the study of effects by linkers on the final supramolecular structure formation. To study this, a series of POSS based ABn type giant molecules with similar topological structures but different chain length were synthesized via several efficient chemistry methods. With the change of chain length, several obvious changes in supramolecular structure formation have been observed (such as from amorphous to A15 phase, A15 phase to HEX, HEX to DG etc.). This study would provide a new insight into the supramolecular structure formation of ABn type soft materials.
Stephen Z.D. Cheng (Advisor)
Toshikazu Miyoshi (Other)
56 p.

Recommended Citations

Citations

  • Zhang, R. (2016). New Insight into Supramolecular Structure Formation of Polyhedral Oligomeric Silsequioxane (POSS) based ABn Type Giant Shape Amphiphiles: Linker’s Effects [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460344631

    APA Style (7th edition)

  • Zhang, Ruimeng. New Insight into Supramolecular Structure Formation of Polyhedral Oligomeric Silsequioxane (POSS) based ABn Type Giant Shape Amphiphiles: Linker’s Effects . 2016. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1460344631.

    MLA Style (8th edition)

  • Zhang, Ruimeng. "New Insight into Supramolecular Structure Formation of Polyhedral Oligomeric Silsequioxane (POSS) based ABn Type Giant Shape Amphiphiles: Linker’s Effects ." Master's thesis, University of Akron, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460344631

    Chicago Manual of Style (17th edition)