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Department of Inorganic Chemistry
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Adress: Jelgavas street 1, LV-1004, Riga
: +371 67033900, +371 26465796
Asoc. prof. Jānis Švirksts

Academic staff:

Associate professor Jānis Švirksts;
Professor Valdis Kaļķis;
Associate professor Andris Spricis;
Associate professor Ženija Roja;
Assistantr prtofessor Iveta Ancāne;
Lecturer Velta Legzdiņa;


Scientific research in the field of material science in the Inorganic Chemistry Department and relate to: 1) acquisition and modification methods of multi-phased polymer composites, including nano-composites, its deformation and exploitation properties depending of large magnetic field and ionizing radiation interaction; 2) the creation of new smart polymeric materials using high energy (Radiation Chemistry) technologies (source of ionizing radiation  Salaspils electron accelerator).
The creation of new smart polymeric materials (thermoshrinkable and magnetoplastic) for use in the presence of a large magnetic field (construction materials for nuclear fusion reactors, etc.), is planned together with our scientific partners.
 Scientific articles are published in SCI journals: Materials Science & Engineering, Journal of Nanoscience and Nanomaterials, Mechanics of Composite Materials, etc.
The research direction in the Department, which operates within the Faculty of Chemistry Ergonomic Research Center, is occupational health and ergonomics. The studies are related to: 1) the physical load and environmental impact on employment health and safety in different economic sectors; 2) investigation of the ergonomic risks and the early vocationally rehabilitation for skeletal muscle disease prevention.
Scientific articles are published in SCI journals: Proceedings of the Latvian Academy of Sciences, Occupational Medicine and Toxicology, International Journal of Rehabilitation Research, etc.

Collaboration partners:

1.    Riga Technical University, Institute of Polymer Materials
2.    Riga Technical University, Institute of Inorganic Chemistry
3.    University of Latvia, Institute of Polymer Mechanics
4.    University of Latvia, Institute of Chemical Physics
5.    University of Kassel, Institute of Materials Technology
6.    Poliurs, Ltd; Izoterms, Ltd; Riga Varnish and Paint Factory, Ltd
7.    Riga Stradins University, Institute of Work and Environment Health
8.    International Ergonomics association
9.    Federation of European Ergonomics Societies


Research work in the Department of Inorganic Chemistry is carried out within the framework of research projects:
1.    Effect of large magnetic field, ionizing radiation and its interaction on physical-mechanical properties of polymers and its composites (Latvian Council of Science funding).
2.    Obtain of Multifunctional Polymeric Composite Materials from Recycled Materials, its Structural Design, Properties and Technology (Latvian Council of Science funding).
3.    Development and investigations of nanostructured polymer composites and technologies for smart materials and devices (National Research Program „Development of novel multifunctional materials, signal processing and information technologies for competitive knowledge-based products”).
4.    Formation of long-range nanocomposites based on recycling polymers and development of its processing technologies (Project supported by European Union).

Significant research papers:

1.    T. Ivanova, I. Elksnīte, J. Zicans, R. Merijs Meri, M. Kalniņš, V. Kalkis. Heterogeneous polyvinylchloride (PVC) blends with chlorinated polyethylene (CPE): Rheological, Diffusion and gas sorption characteristics The Proceedings of the Estonian Academy of Science, 2009, Nr 1, p. 29-34.
2.    D. Pizele, V. Kalkis, R. Merijs Meri, T. Ivanova and J. Zicans. On the mechanical and thermomechanical properties of low density polyethylene/ethylene--octene copolymer blends. Mechanics of Composite Materials, 2008, Vol.44, No.2, 279-286.
3.    R. Merijs Meri, T. Bocoka, J. Zicans, M. Kalnins, V. Kalkis, A.K. Bledzki. Characterization of the mechanical performance of poly(ethylene terephtalate)(PET)/elastomere blends. Mechanics of Composite Materials, 2008, Vol.44, No.5, 521-534.
4.    V. Kaļķis. Darba vides risku novērtēšanas metodes, Latvijas izglītības fonds, Rīga, 2008, 242 lpp.
5.    I. Uzulina (I. Ancāne), A., N. Gaillard, A. Guyot, J. Claverie, Controlled radical polymerization of styrene in miniemulsion polymerization using reversible addition fragmentation chain transfer, Comptes Rendus Chemie, 2003, vol. 6, N 11-12, 1375-1384.
6.    I. Uzulina (I. Ancāne), A. Zicmanis, C. Graillat, J. Claverie, A. Guyot, Synthesis of polymers colloids using polymerizable surfactants, Macromolecular Chemistry and Physics, 2001, vol. 202, pp. 3126-3135.
7.    I. Uzulina (I. Ancāne), S. Kanagasabapathy, J. Claverie, Reversible Addition Fragmentation Transfer (RAFT) Polymerization in Emulsion, Macromol. Symp., 2000, vol. 150, pp. 33-38.
8.    Z. Roja, V. Kalkis, H. Kalkis, I. Roja. Evaluation of Neck, Shoulders, Arms and Hands Muscles Fatigue of Sewers using Myotonometric Method and Effectiveness of Early Multidisciplinary Rehabilitation. Advances in Occupational, Social, and Organizational Ergonomics, Eds. P. Vink and J. Kantola. CRC Press, Taylor & Francis Group, Boca Raton, London, New York, 2010, pp. 431-443.
9.    Ž. Roja. Ergonomikas pamati, ISBN 978-9984-798-79-0, SIA Drukātava, Rīga, 2008, 190 lpp.