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PSEP

Synthetic polymers: Structure and properties. Biodegradable polymers :

imatge grup psep 2The group works in the area of synthesis and study of the properties of new polymers, principally biodegradable materials. For this reason we have focused on techniques that allow for monitoring of the process of degradation (hydrolytic, enzymatic or thermal), studying their application as drug-dosage systems (preparation of microparticles, incorporation of active ingredient and monitoring of delivery). Materials are characterized using standard spectroscopic techniques and their thermal and mechanical properties are determined.

The properties of the polymer materials depend on how the macromolecules are organized. For this reason, the group also studies the amorphous phases and the different crystalline phases. Determination of the crystalline structure is carried out by combining X-ray diffraction techniques (powder or fibre), electron microscopy and molecular simulation. Resolution is also performed using direct methods and single-crystal diffraction of model molecules that correspond to representative segments of the polymer sequence. Finally, the group studies aspects relating to kinetics (crystallization and polymerization) and the study of crystal growth (from the molten state or dilute solutions).

We are currently working on the design of polymers for specific applications, on the development of new biodegradable polymers for use as commodities that are biocompatible as surgical sutures, drug-delivery compounds, glycolide-derived polymers with biomedical applications, new biodegradable polyamides and polyester amides that contain natural amino acids, and biodegradable polyesters. We study the crystalline structure of synthetic polymers and model composites, determination of mechanical properties and the effect of additives, the use of chain extenders to improve the mechanical properties and preparation of microparticles and polymer nanocomposites.

Specific services :

  • Synthesis of condensation polymers.
  • Analysis and identification of polymers.
  • Determination of molecular weight using GPC.
  • Structural characterization.
  • Morphological analysis of polymers using transmission electron microscopy.
  • Multiphase systems.
  • Study of crystallization kinetics.
  • Evaluation of mechanical properties.
  • Study of alloys.
  • Degradability studies. 

Relevant equipment :

  • Polymer synthesis laboratory.
  • GPC and HPLC chromatographs (preparatory and analytical).
  • Spectroscopy equipment (FTIR).
  • Philips TECNAI 10 transmission electron microscope.
  • X-ray diffraction laboratory (single-crystal and fibre).
  • Laboratory for studying polymer degradation.
  • Equipment for determining mechanical properties.

Microscopi electrònic de transmissió Phillips TECNAI10

Philips TECNAI 10 transmission electron microscope

Contacts :

JORDI PUIGGALI BELLALTA

jordi.puiggaliarrobaGupc.edu

Scientific output :

eprints upc

Group website :

http://psep.upc.edu