A5034059205- Lignin and Wood Chemistry
- Polymer composites and self-healing
- Advanced Cellulose Research Studies
- Polymer Foaming and Composites
- Cyclopropane Reaction Mechanisms
- Organometallic Complex Synthesis and Catalysis
- Flame retardant materials and properties
- Innovations in Concrete and Construction Materials
- Chemical synthesis and pharmacological studies
- Carbon dioxide utilization in catalysis
- High-Velocity Impact and Material Behavior
- Synthesis and Reactions of Organic Compounds
- Additive Manufacturing and 3D Printing Technologies
- Electrospun Nanofibers in Biomedical Applications
- Synthesis and Characterization of Heterocyclic Compounds
- Nanocomposite Films for Food Packaging
- Mechanical Behavior of Composites
- Nanotechnology research and applications
- Synthesis and Reactivity of Heterocycles
- Cancer Treatment and Pharmacology
- Enzyme-mediated dye degradation
- Fermentation and Sensory Analysis
- Architecture and Computational Design
- Transportation Safety and Impact Analysis
- Microwave-Assisted Synthesis and Applications
The University of Queensland
2014-2024
Victoria University
2000
Foster-Miller (United States)
1990
Lignin is an inexpensive raw material that can be utilised in polymer industry. This review critically appraises the recent progress and provides framework for future developments lignin valorisation into rigid polyurethane foam.
The incorporation of lignin into rigid polyurethane foam (RPUF) has been explored for the last two decades replacing petrochemical polyols and producing sustainable high-performance insulation materials. However, to date, issues associated with dispersion technical in commonly used RPUF have highly limited improvement mechanical thermal performance. This study reports enhanced kraft (KL) up 75 wt % glycerol-substituted aromatic polyester polyol blend. influence significantly well-dispersed...
3-Hydroxy-, 3-hydroxy-1-methyl-, and 3-hydroxy-6,7-dimethoxy-1-methylisoquinoline have been shown by ultraviolet spectroscopy to exist as lactim tautomers in non-hydroxylic solvents such diethyl ether, lactam water. 1-Chloro-3-hydroxyisoquinoline is the hydroxy- or form all common solvents, 3-hydroxycinnoline tried.
Abstract Nanocellulose is explored as an eco‐friendly cell modifier and reinforcer for improving the thermal insulation mechanical performance of rigid polyurethane foam (RPUF). In this study, we report on a promising method achieving ‘solvent‐free' dispersion cellulose nanocrystals (CNCs) into polyether polyol production RPUF. This was achieved through wet grinding CNC powder in agitator bead mill CNCs superior to classical ultrasonication. While improvements (reduction) conductivity, due...
Abstract Analysis of cellulose nanocrystals (CNCs) at low volume fractions in polymer nanocomposites through conventional electron microscopy still remains a challenge due to insufficient contrast between CNCs and organic matrices. Herein, methodology for enhancing the CNC, atomic layer deposition (ALD) alumina (Al 2 O 3 ) on is demonstrated. The metal oxide coated CNC allows clear visualization by transmission microscopy, when they are dispersed water polyol. A coating about 6 ± 1 nm thick...
An efficient control over the microstructure and physical properties of polyurethane foam is demonstrated through dispersion engineering cellulose nanofibre, a biosourced nanoadditive, in polyols with broad range rheological characteristics.
Lignin, the most abundant aromatic biopolymer, is explored as a renewable polyol substituent and functional additive in rigid polyurethane foam (RPUF) for structural insulation applications. The understanding of complex microstructural changes RPUF caused by lignin micro-nanoparticles has been limited traditional two-dimensional cross-sectional imaging methods (typically to average cell diameters). This study reports induced dispersion kraft (0–2% w/w) monitored using X-ray computed...
Cyclopropa[b]naphthalene-3,6-dione (2) fails to add furan across the enedione olefinic bond in a Diels–Alder cycloaddition even at 14 × 105 kPa. In contrast, isobenzofuran (4) adds efficiently ambient temperature and pressure. The epoxytetracenedione (5) that is formed air-sensitive decomposes under conditions employed for dehydration. Aromatization of cyclopropatetracenedione (6) not observed despite anthracene-1,4-dione (8) being obtained from its analogous tetrahydro precursor (7) same conditions.
Characterization of organic nanoparticle orientation in a polyurethane foam, which exhibits anisotropic mechanical properties, remains challenging. In article number 1803439, John F. Conley Jr., Pratheep K. Annamalai, and co-workers briefly demonstrate the application atomic layer deposition to enhance contrast nanocellulose through coating alumina on enabling microscopic characterisation. By incorporating coated it also demonstrates alignment foam-rise direction.
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”