P3.21 – Thermoresponsive and photoreactive xylan-g-AGE toughens PEG hydrogel via microphase separation
Due to the inherent sustainability and biodegradability, developing naturally derived thermoresponsive biopolymers in macromolecular design and synthesis has garnered growing attention, which undergoes conformational or phase transitions triggered by temperature variations through the self-assembly of macromolecules 1. Xylan is the third most abundant renewable polysaccharide in nature after cellulose and chitin, which shares the same […]
P3.9 – Unlocking the Potential of Sustainable Polymers: Bio-based itaconate ester as a tool to increase the bio-based content of acrylic emulsion polymers
Currently, crude oil, natural gas, and coal are the principal raw resources used in chemical synthesis. However, rising petroleum prices, consumer demands, and environmental concerns have led to the development of sustainable alternatives. Biomass resources are the most viable option due to their renewable nature and lack of fossilized carbon release1–3. Despite numerous reports on […]
P3.16 – Chemically Recyclable and Enzymatically Degradable α-Pinene-derived Polyesters for Adhesive Applications
The production of bio-based polymers is crucial for addressing the environmental and socio-economic challenges posed by fossil-based plastics. It is increasingly important to design degradable bio-based polymers, as not all bio-based polymers are biodegradable. Moreover, the exploration of biomass-based diols for creating materials with tunable properties has been limited. α-Pinene, a significant forestry-derived material, has […]
3.1 Prehydrolysis liquors valorized to a flame-retardant coating
The production of dissolving grade pulp necessitates the removal of hemicellulose from biomass. The resulting prehydrolysis liquors are currently incinerated at low efficiency, hampering pulp production. Herein, the preparation and characterization of a polymer synthesized from hemicellulose derived monomers is described, offering an alternative to incineration. The polymer was prepared without solvent at room temperature, […]
P3.1 – Hydrogen bond donor additive in cellulose ester films for thermally expandable microspheres
Cellulose based materials have a range of material properties, that can be tweaked even further by the addition of additives to suit specific applications. With the goal to make thermally expandable microspheres (TEMS) of cellulose based materials, the additive is a vital component, that broadens the barrier- and softening properties. TEMS are developed under the […]
P3.2 – Synthesis of functionalized conjugated polymers for creating cellulose/CP hybrid materials
Synthesis of functionalized conjugated polymers for creating cellulose/CP hybrid materialsAsaminew Yerango (asaminew.yerango.shimolo@liu.se), Bernhard Burtscher (bernhard.burtscher@liu.se), Xenofon Strakosas (xenofon.strakosas@liu.se), Renee Kroon (renee.kroon@liu.se) Abstract Blending conjugated polymers (CPs) with cellulose is a promising approach to enhance their properties and create composite materials with properties that are greater than the sum of their separate components. To combine these […]
P3.3 – The mechanochemical modification of biomaterials (MechanMod)
Cellulose, as a high-potential renewable feedstock, holds a significant promise for the development of sustainable thermoplastic, biocomposite and textile materials. (1,2) Esterification of cellulose represents a crucial pathway for converting it into functional materials with desirable properties. (3,4) However, conventional solvent-based modification methods often require large quantities of solvents and high temperatures, posing safety risks […]
P3.4 – Zwitterionic cellulose nanofibril hydrogels
Nanocellulose-based hydrogels have shown promising potential in the field of biomedicine. They have been explored in biomedical applications, such as 3D cell culture, tissue engineering, diagnostics, drug delivery, and the separation of biomolecules and cells. An important property of hydrogels used in biomedicine is their ability to mimic the physical and biochemical environment in the […]
P3.5 – Bio-based polymers based on dehydrovanillin.
Bio-based vanillin is a relevant building block for a plethora of green polymer concepts. It can be obtained from the oxidative depolymerization of Kraft lignin [1]. This bio-based vanillin provides a lower CO_2 footprint compared to synthetic vanillin and is potentially scalable. Here we explore bio-based polyether concepts based on dehydrovanillin. The synthesis of dehydrovanillin […]
P3.6 – Synthesis and characterization of epoxidized lignin
The development of bio-based epoxy resins from renewable feedstocks are significantly in high demand as a sustainable alternative to petroleum-derived polymers. In this study, lignin extracted from different sources, specifically spruce and oat husk, was utilized in both its non-fractionated and in different fractions/depolymerized forms. These lignin variants were chemically modified through epoxidation using epichlorohydrin […]
