Segmental relaxation of sequence defined polymers

Document Type

Article

Publication Date

3-20-2024

Abstract

The dynamical behavior of sequence defined polymers, P(CnEG4), was studied using dielectric spectroscopy showing one segmental relaxation in addition to a secondary relaxation. In case of segmental relaxation, the relaxation times strongly depend on the molecular weight at low temperatures, while at higher temperatures, unlike to linear homo polymers, this effect levels out. With increasing length of C-units, the segmental relaxation accelerates. This is also reflected in the glass transition temperature, extracted from dielectric spectroscopy. With increasing length of C-units the glass transition temperature decreases, compatible with the accelerated segmental relaxation.

Publication Source (Journal or Book title)

Journal of Physics Condensed Matter

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