Research interests
Basic research: Design, synthesis and characterization of specialty polymers. Ring-opening polymerization with special attention given to controlled degradation rate using new reactions, new catalysts. Molecular architecture for future materials such as star, comb and hyperbranched macromolecules. Design of polymeric materials for long lifetimes, stability of properties, controlled degradation. Degradation rate, degradation products and degradation mechanisms as well as environmental interaction of polymers.
Applied research: Well-organized materials and tailor-made polymers for medical applications, drugs and agriculture. Advanced systems for polymers. Recycling, waste problems and life-cycle design. Problems adapted to the environment and materials from renewable resources. Long-term properties such as thermo-oxidation, hydrolysis, photo-oxidation and biotic degradation. Tailor-made tests and controlled degradation by artificial biological processes.
Editor for the journal Biomacromolecules

Research interests
Polymer physics; morphology and phase transitions of crystalline and liquid crystalline polymers; connection between polymer structureand properties; long-term properties of polymeric materials; diffusion- and solubility properties; electrical insulation systems; atomic simulation; complex polymer systems

Teaching
Have written the book Polymer Physics (Chapman and Hall; Kluver (1995))

Research interests
Coating chemistry and dendritic materials. The aim of these projects is to synthesize new coating resins with: low solvent emission; low temperature curing; improved mechanical and barrier properties. Work is also carried out on polymers for photonic applications. The aim is to evaluate and develop advanced polymer technology for integration of optics and electronics at the component and system levels. Further, to develop a fundamental understanding of the relationships between molecular structure and architecture versus macroscopical user properties such as optical, mechanical and thermal properties, and processability of the systems.

Research interests
Transport properties of polymers and computational polymer science. Research topics include packaging technology, nanocomposites, barrier properties, polymers from renewable resources, migration of additives, morphology of linear and hyperbranched polymers and physics of semi-crystalline and liquid crystalline polymers. Projects involve both basic and applied research. Examples of tools and techniques used inthe research are molecular dynamics simulation and finite difference analysis and transmission electron microscopy and differential scanning calorimetry.

Teaching
Courses on undergraduate level on Mechanical properties of polymers and General polymer properties for both chemists and material scientists. Graduate course on Transport properties of polymers.

Research interests
The research covers topics related to understanding structure -property - process relationships for thermoset polymers in thin film applications. The research includes synthesis of new resin structures (i.e.hyperbranched polymer resins), effect of process parameters on thermoset structures (e.g. EB-curing of thick thermoset composites), and studies on curing kinetics of UV-curable thermoset coatings (e.g. vinyl ether - maleate systems). Other research areas of interest are the use of new monomers derived from renewable resources based on genetically modified crops, coating technology with respect to powder coatings and radiation curing.

Research interests
Environmental interaction of natural and synthetic polymers. Important tools are separation and extraction techniques for monitoring small molecules i natural and synthetic polymers. Methods developed use SPE, SPME, MAE and ultrasonication which have been applied to in-vitro, fungal and bacterial exposure and soil environments. Chromatography (GC, LC, MS) is used to monitor formation, migration and diffusion of degradation products, additives and other types of transformation products and contamination in the polymeric materials. The results form the basis for predicting life-time and degradation mechanisms in various environments. Another area is the development of pyrolysis-GC/MS to characterize the microstructural changes in polymer matrix and relate this to remaining service-time. In the area recycling of polymers, polymer characterization is a central topic where on-line quality test methods by e.g. NIR-spectroscopy is developed. LC-MS of flame retardants is presently developed which will allow prediction of environmental effect during recycling of polymeric materials. Biochemical and microbial effects on polymers on silicone is a recent research area.

Research interests
Dendritic macromolecules - are a family of highly branched polymers built from AB_x-type monomers. The high branching implies that the properties of dendritic polymers are very different from those of linear polymers. My interests in this area deal with the synthesis and characterization of various dendritic polymers. Ultimately, their use in a wide range of applications (such as materials for fotonics, paints and rheological additives) is examined.
Free radical polymerization - is the most versatile tool to synthesize commodity polymers. Due to the nature of the polymerization, the final product contains a mixture of polymer chains of different lengths. For some applications this is detrimental. The versatility of free radical polymerization can be enhanced by the development of techniques that just give one chain length. Such techniques are referred to as "living" procedures.
Surface modifications - of inorganic substrates are of vital importance for a whole range of applications. Combining the experiences from the synthesis of dendritic polymers and the utilization of living free radical techniques offer new possibilities in obtaining surfaces for e.g. microelectronics.

Research interests
Rubber technology and processing of polymeric materials to products. Special interest is devoted to long-term properties of rubber materials and their composites. The technique used is imaging chemiluminescence to study the degradation and stabilization of rubber materials and products. New processing techniques for rubber materials are developed and relations between molecular structure and properties are mapped out. In a thesis presented some years ago we showed that treatment of diolefinic elastomers at elevated pressure (150 to 300 MPa) at temperatures between 200 and 250^oC crosslinked was obtained. Electro- and magnetorheological phenomena are used to build new types of active dampers. In two EU projects together with European industries we are working with applications such as vibration damping in cars, buildings etc. Research work is also going on aimed for efficient reuse of waste rubber products.

Research interests
Biomaterials. Antithrombogenic/antibacterial surfaces on polymeric substrates by radiation and plasma induced grafting and surface chemistry. Bioresorbable polymeric substrates surface or bulk modified for cell and tissue engineering. Submicron patterned biofunctional surfaces. Bioresorbable/biocompatible hydrogels with ph and temperature regulated swelling characteristics.