Association dynamics of supramolecular star polymers
The scope of this proposal is the coherent intermediate structure factor as measured by Neutron Spin Echo spectroscopy to investigate for the first time the association dynamics of supramolecular poly(ethylene oxide) (PEO) stars in the melt of covalent short PEO linear chains. The proposed investigation is a new dynamic experiment to enhance the microscopic understanding of the self-association mechanism in a symmetric 3-arm star, consisting of PEO, using directed and DNA-inspired heterocomplementary thymine (Thy) and diaminotriazine (Dat) as the supramolecular functional group. Here, the NSE dynamic structure factor and its correlation to the chain architecture and transient associated state is an indispensable prerequisite to unravel the microscopic properties of the self-assembly dynamics, and in particular the effective hydrogen bonding (H-bonding) lifetime.
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BRAS Ana; Ana Arizaga; CZAKKEL Orsolya and Annette M. Schmidt. (2019). Association dynamics of supramolecular star polymers. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-1861
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