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Objective 1: Synthesis of some new
functionalized polysulfones containing quaternary ammonium
groups
Activity
1.1.
Scientific documentation concerning using functionalized polysulfones
in biomedicine
Activity
1.2. Purification of the monomers and solvents
Activity 1.3.Synthesis of functionalized
polysulfones with
dimethyl-alkylamine
Activity
1.4. Confirmation of quaternized polysulfones structures by
elemental analysis, IR and 1H RMN
spectroscopy
Activity
1.5. Solubility testes, GPC
Objective 2: Achievement of
composites/blends based on functionalized polysulfones with optimal
properties in bioapplications
Activity
2.1. Scientific documentation concerning the properties,
utilization and importance of composites/blends for obtaining
semipermeable biomembranes
Activity
2.2. Obtaining functionalized polysulfones/ derivatives
cellulose composites/blends
Activity
2.3. Obtaining functionalized polysulfones/ polyvinyl
alcohol composites/blends
Objective 3: Conformational
characteristics of composites/blends based on functionalized
polysulfones
Activity
3.1. Studies concerning conformational modifications of
polymers with ionic charges in ternary system: viscometry, rheology
Objective 4: Characterization of
composites/blends based on functionalized polysulfones films
Activity
4.1. Establishing the hydrophobic/hydrophilic balance by
studying surface tension and free energies of hydration
Activity
4.2. Determinations of absorption limits, the dielectric
properties and conductivity in a wide range of frequencies and
temperatures
Objective 5: Optimization of
properties in solution and solid state to obtain semipermeable
composite membranes
Activity
5.1. Establishing of some additives for increasing
performance of semipermeable membranes
Activity
5.2. Finding optimal compositions of used blends, by
optimization of the obtained properties, in order to achieve the
bioactive membranes
Activity
5.3. Manufacturing of some semipermeable membranes with
controllable pore size; surface study by specific tests: microscopy and
permittivity studies
Objective 6: Conformational
characteristics in ternary systems based on functionalized polysulfones
Activity 6.1. Establishing
specific interactions in multicomponent systems: functionalized
polysulfones/derivatives cellulose/solvent
Activity 6.2. Establishing
specific interactions in multicomponent systems: functionalized
polysulfones/polyvinyl alcohol/solvent
Objective 7: Specific properties of
composites/blends membranes for biomedical applications
Activity 7.1. Determining the
water adsorption degree, compatibility of polymeric composites/blends
with blood components, protein adsorption and toxicity tests
Activity 7.2. Establishing the
correlation between hydrophilicity and biocompatibility for specific
applications
Activity 7.3. Testing of
antimicrobial activity of polymeric composites/blends using bacterial
species (Staphylococus Aureus and Escherichia
Coli)