1. Novel cellulose materials
Cellulose is the most abundant natural polymer in the world, which is highly attractive due to its renewability, low price and various good properties. Our work is focused on the modification of cellulose, aiming to improve its functionality for biomedical applications.
In Nov 2016, we published our work on the chemical modification of cellulose in solution by a so called "hypergrafting approach", which yielded soluble cellulose materials with antibacterial properties. Details
In Aug 2017, we published our work on the preparation of cellulose-nanoclay nanocomposite materials, which exhibit superior anti-quorum sensing effect for bacteria. Details
2. Eco-friendly sustainable hyperbranched polymers
This project is focused on the development of hyperbranched polymers using sustainable raw materials and clean synthetic protocols. Such new class of new polymers can be effective to fight against bacteria, which is one of the most serious challenges associated with many plastic products, especially those used for food packaging or biomedical devices.
In Feb 2018, we published our work on the preparation of a new hyperbranched polymer from sustainable bio-based chemicals. These new hyperbranched polymers are non-charged, can inhibit effectively the bacteria grow, and do not leach from their matrix plastics when being added as additives. Details
3. Bio-based building blocks and polymers
Polyester is a major class of plastics, which are being used widely in daily lives, such as the PET water bottles, shirts, carpets, cushions, and many components in home appliances or automobile. A particular challenge for polyesters is that they are mainly made from non-renewable fossil resources. We in the group carry out research toward the synthesis and development of new bio-based chemicals, building blocks and polymers. We work closely with various Swedish and European industrial partners.
In June 2017, we demonstrated a first biobased wooden floor coating product, namely “StepOn”. This is a successful collaboration with Bona AB. Here you can read more about StepOn
Publications on bio-based polyesters and polyurethanes:
1. N. Warlin, M. N. G. Gonzalez, S. Mankar, N. Valsange, M. Sayed, S. –H. Pyo, N. Rehnberg, S. Lundmark, R. H. -Kaul, P. Jannasch, B. Zhang*, Green Chem. 2019, 21, 6667-6684.
2. S. Mankar, M. N. G. Gonzalez, N. Warlin, N. Valsange, N. Rehnberg, S. Lundmark, P. Jannasch, B. Zhang*, ACS Sustainable Chem. & Eng. 2019, 7, 19090-19103.
3. C. R. Arza, P. Wang, J. Linares-Pastén, B. Zhang*, J. Polym. Sci. Part A: Polym. Chem. 2019, 57, 2314-2323.
Synthesis, Thermal Properties, and Rheological Characteristics of Indole-Based Aromatic Polyesters.
5. P. Wang, C. R. Arza, B. Zhang*, Polym. Chem. 2018, 9, 4706. (Front cover)
Indole as a new sustainable aromatic unit for highquality biopolyesters.