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Morphology and Dynamics of Catenanes in Dilute Solutions and at Liquid/Liquid Interface

Akbari , Saeed
http://rave.ohiolink.edu/etdc/view?acc_num=akron1544538754254472

Abstract Details

2018, Master of Science, University of Akron, Polymer Science.
Catenanes as mechanically interlocked polymers possess distinct, well-defined topological interactions and, as a result, exhibit a variety of unique properties. Template-directed synthesis is responsible for the high yield syntheses of these structures40. However, little is known about the interfacial and physical properties of this class of polymers. As proved many times in other polymeric systems, Molecular dynamics simulation can be used to characterize them. Among the limited studies, Wang, et.al quantified the influence of topological constraints on the structural and dynamic behavior of different topologies of ring polymers. They found that catenane topologies have larger flexibility than any of the single chain systems, indicative of the larger structural deformations that these large complexes can sustain53. We will present simulation results on the morphology and dynamics of linear, ring and catenane polymers in dilute solutions. Pure poly (ethylene oxide) (PEO), pure polystyrene (PS) and diblock of PEO and PS catenanes in a select group of solvents are examined. The effect of solvent quality on morphology and dynamics is also investigated. Flexibility caused by different polymer type, different chain structure and different interaction of chains with solvents has the dominant role in determining morphological and dynamical properties of the polymers. The behavior of diblock catenane at an interface of two immiscible solvents provided interesting morphological and dynamical understanding. An interesting dynamics of the two blocks, both translational and rotational, has been observed at the liquid/liquid interface. At the interface, the flexibility of the rings also plays a major role in relative rotation of the rings.
Mesfin Tsige (Advisor)
Andrey Dobrynin (Committee Member)
66 p.
Polymers
Catenane; Molecular Dynamics Simulation; Radius of Gyration; Center of Mass diffusion; Relative Rotation

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Citations

  • Akbari , S. (2018). Morphology and Dynamics of Catenanes in Dilute Solutions and at Liquid/Liquid Interface [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1544538754254472

    APA Style (7th edition)

  • Akbari , Saeed. Morphology and Dynamics of Catenanes in Dilute Solutions and at Liquid/Liquid Interface. 2018. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1544538754254472.

    MLA Style (8th edition)

  • Akbari , Saeed. "Morphology and Dynamics of Catenanes in Dilute Solutions and at Liquid/Liquid Interface." Master's thesis, University of Akron, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1544538754254472

    Chicago Manual of Style (17th edition)

akron1544538754254472
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© 2018, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.