Understanding and controlling the crystallization and mechanical properties of biodegradable polyesters
by Qiang Yu
Synthesis and characterisation of poly(amino acid)s and hybrid block copolymers
by Matthias Rohmer
Location: MLUconf
Time: 15:20-17:00
Understanding and controlling the crystallization and mechanical properties of biodegradable polyesters
Qiang Yu
For the sake of environmental protection, the interest in replacing the commodity plastics e.g. polyethylene (PE), polypropylene (PP) by biodegradable plastics is increasing. Polyesters like polypentadecalactone (PPDL) and polybutylene succinate (PBS) have the potential as they are biodegradable and possess acceptable mechanical properties. However, biodegradable polyesters are not widely studied. In our project, we will investigate the crystallization behavior of a series of chemically similar polyesters by small angle x-ray scattering (SAXS), differential scanning calorimetry (DSC), nuclear magnetic resonance (NMR) etc. The aim is to understand why a small difference in chemical structure leads to different crystallization behavior.
Synthesis and characterisation of poly(amino acid)s and hybrid block copolymers
Matthias Rohmer
Poly(amino acid)s and hybrid block copolymers have great potential and interesting applications. The properties of these polymers depend strongly on the secondary structure of the poly(amino acid)s. The investigation of synthetic poly(amino acid)s and in particular their secondary structure is therefore important. With these information we can try to design a material capable of 3D printing and biological applications. The polymer is synthesised by a ring opening polymerisation of the N-Carboxyanhydride (NCA) of the amino acid. The success of the reaction gets proven by MALDI-ToF MS and the secondary structure is investigated by CD spectroscopy
