Morphology and Dynamics of Bottlebrush Polymers
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Beschreibung
This thesis makes significant advances to the understanding of bottlebrush polymers. While bottlebrushes have received much attention due to the recent discovery of their unprecedented properties, including supersoftness, ultra-low viscosity, and hyperelasticity, this thesis is the first fundamental investigation at the molecular level that comprises structure and dynamics. Neutron scattering experiments, detailed within, reveal spherical or cylindrical shapes, instead of a random coil conformation. Another highlight is the analysis of the fast dynamics at the sub nm-length scale. The combination of three neutron spectrometers and the development of a new analysis technique enabled the calculation of the mean-square displacement over seven orders of magnitude in time scale. This unprecedented result can be applied to a broad class of samples, including polymers and other materials. The thesis is accessible to scientists from other fields, provides the reader with easily understandableguidelines for applying this analysis to other materials, and has the potential to make a significant impact on the analysis of neutron scattering data.
This thesis makes significant advances to the understanding of bottlebrush polymers. While bottlebrushes have received much attention due to the recent discovery of their unprecedented properties, including supersoftness, ultra-low viscosity, and hyperelasticity, this thesis is the first fundamental investigation at the molecular level that comprises structure and dynamics. Neutron scattering experiments, detailed within, reveal spherical or cylindrical shapes, instead of a random coil conformation. Another highlight is the analysis of the fast dynamics at the sub nm-length scale. The combination of three neutron spectrometers and the development of a new analysis technique enabled the calculation of the mean-square displacement over seven orders of magnitude in time scale. This unprecedented result can be applied to a broad class of samples, including polymers and other materials. The thesis is accessible to scientists from other fields, provides the reader with easily understandableguidelines for applying this analysis to other materials, and has the potential to make a significant impact on the analysis of neutron scattering data.
Nominated as an outstanding PhD thesis by Louisiana State University Presents a significant advance to the understanding of structure and dynamics of bottlebrush polymers Provides advances in analysis of neutron scattering data that will interest scientists from other fields
Autor*in
Karin J. Bichler
Themen in »Morphology and Dynamics of Bottlebrush Polymers«
bottlebrush polymer neutron scattering data analysis structure of bottlebrush polymers molecular dynamics of polymers polymer morphology fast field cycling relaxometry small angle neutron scattering quasi-elastic neutron scattering