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Laboratory 3. Polycondensation and Thermostable Polymers
Head of laboratory: Dr. Luminița MARIN
Topics Team Main Results Research Groups
Group 3.2: Polymeric materials containing phosphorus, sulfur or nitrogen for obtaining films, membranes or coatings

Dr. Habil. Corneliu HAMCIUC

The aims of our group is to obtain multifunctional polymeric materials based on heterocyclic/heterochain polymers containing phosphorus and/or nitrogen atoms, with potential uses in the biomedical field or in the production of flame retardant materials, as well as polymeric composites/nanocomposites with thermal, electrical, magnetic and optical properties, such as:

I. Flame retardant systems containing phosphorus

    I.1. Functional polymers: polyesters, polyphosphates and polyphosphonates, having phosphorus and/or nitrogen atoms in the main chain, respectively in the side chain, with flame resistance, high thermal stability and/or liquid crystal properties. The aim is to obtain polymers with high phosphorus content and low toxicity to the environment, for use as flame retardants with increased efficiency in increasing the flame resistance of traditional polymers.

    I.2. Epoxy resins containing polymers with phosphorus, preserving initial resin performance and improved fire resistance, with potential uses as adhesives, coatings, polymeric materials for electronics and electrotechnics.

II. Biomedical systems with complex structures

   II.1. Polymeric nanofibres membranes (obtained through electrofilation process) with applicative potential in the cutting edge areas of modern technology.

   II.2. Hydrogels for controlled drug release systems. New systems are envisaged using biodegradable polymers as organic component (polyvinyl alcohol, pullulan, polyvinylpyrrolidone, polyphosphazenes etc.) and zeolite as inorganic material. The effect of polymer type as well as the proportion and combination of components on the effectiveness of incorporation, release rate and drug release kinetics are studied.

   II.3. Polymer composite materials for biomedical applications. Polymeric composites with improved antimicrobial activity and low cytotoxicity by incorporating zeolite containing silver ions into a biocompatible organic matrix are developed.

III. Materials for micro- and optoelectronics

   III.1. Polymer composites and nanocomposites based on inorganic compounds (silica, zeolites, barium titanate, barium and titanium oxides, titanium dioxide nanotubes, carbon nanotubes) with electroactive properties, low/high dielectric constant, for capacitors, actuators or systems to produce energy.

  III.2. Polymers with photoluminescent properties based on nitrogen-containing heterocycles, showing fluorescence in the blue range, excellent thermal and mechanical properties, chemical stability and high glass transition temperatures.

   III.3. Imidic polymers of partially alicyclic structure, processable in flexible and transparent films, with varying refractive indices and/or dielectric constant specific to the application.

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