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Synthesis and Self-assembly of Sequences Precise Giant Molecular Chains Based on POSS Nanoparticles

Lu, Xinlin
http://rave.ohiolink.edu/etdc/view?acc_num=akron1491152240050781

Abstract Details

2017, Master of Science, University of Akron, Polymer Science.
To study the effect of monomer connecting sequences of the giant molecular chains on their self-assembly behaviors, we designed two giant molecular sequence isomers with exactly the same chemical composition but different connecting sequences of hydrophobic and hydrophilic polyhedral oligomeric silsesquioxane (POSS) nanoparticles. The hydrophobic POSS used here is BPOSS withseven isobutyl groups on its corners; while the hydrophilic POSS is DPOSS with 14 hydroxyl groups on its corners. The sequence isomers of BDB and DBB were synthesized via sequentially performed esterification, ring-opening reactions and thiol-ene “click” couplings. The chemical structures of the giant molecules were well characterized by 1H-NMR, 13C-NMR and MALDI-TOF spectroscopy. Self-assembly behaviors in solid state were investigated by small angle scattering (SAXS). Double gyroids and hexagonally packed cylindrical phase were obtained by DBB and DBD respectively, demonstrated that the connecting sequence plays an important role in dictating material properties.
Stephen Cheng (Advisor)
Toshikazu Miyoshi (Committee Member)
59 p.
Polymer Chemistry; Polymers
Self-assembly, POSS

Recommended Citations

Citations

  • Lu, X. (2017). Synthesis and Self-assembly of Sequences Precise Giant Molecular Chains Based on POSS Nanoparticles [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1491152240050781

    APA Style (7th edition)

  • Lu, Xinlin. Synthesis and Self-assembly of Sequences Precise Giant Molecular Chains Based on POSS Nanoparticles. 2017. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1491152240050781.

    MLA Style (8th edition)

  • Lu, Xinlin. "Synthesis and Self-assembly of Sequences Precise Giant Molecular Chains Based on POSS Nanoparticles." Master's thesis, University of Akron, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1491152240050781

    Chicago Manual of Style (17th edition)

akron1491152240050781
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© 2017, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.