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Liquefaction of Ruscus aculeatus Branches into Bio-Polyols: Process Optimization and Polyol Characterization
Yuliya Dulyanska1,2, Luísa Cruz-Lopes3, Fábio Bernardo4
1CERNAS-IPV Research Centre and Agrarian School, Polytechnic University of Viseu, Campus Politécnico, Repeses, 3504-510 Viseu, Portugal.
Polymers
|April 14, 2026
Summary
This study optimized lignocellulose conversion into bio-polyols using Ruscus aculeatus branches. Optimal conditions yield up to 92% bio-polyols, suitable for sustainable polymer production.
Area of Science:
- Biomass Conversion
- Polymer Science
- Sustainable Chemistry
Background:
- Lignocellulosic biomass conversion into bio-polyols is a sustainable route for polymer feedstock.
- Ruscus aculeatus branches are explored as a novel feedstock for bio-polyol production.
Purpose of the Study:
- To optimize the liquefaction process for Ruscus aculeatus branches.
- To evaluate the properties of the derived bio-polyols.
- To assess the potential for polyurethane applications.
Main Methods:
- Systematic study of liquefaction parameters: temperature, time, particle size, and material-to-solvent ratio.
- Analysis of liquefaction yield, hydroxyl number, thermal stability, and rheological properties.
Main Results:
- Liquefaction yield reached 92% at 180 °C and 60 min.
- Optimal conditions involved smaller particle sizes and solvent ratios of 1:7 to 1:10.
- Higher temperatures decreased hydroxyl number but improved thermal stability and viscosity.
Conclusions:
- Ruscus aculeatus branches are a viable renewable feedstock for bio-polyol production.
- Optimized liquefaction yields high-quality bio-polyols suitable for polyurethane applications.
- The study provides a foundation for utilizing this biomass in sustainable polymer manufacturing.
