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Branched plasticizers derived from eugenol via green polymerization for low/non-migration and externally/internally plasticized polyvinyl chloride materials
Waste residues of the?rosin?processing industry Eugenol Sustainable plasticizer Green polymerization
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2023/11/30
The synthesis of nontoxic plasticizers derived from the waste residues of the?rosin?-processing industry can reduce pollution and promote the high-value utilization of the waste resi-dues of?rosin. In...
Design, synthesis and biological evaluation of dehydroabietic acid derivative as potent vasodilatory agents
Dehydroabietic acid Vasodilation Inflammation Endothelial nitric oxide synthasec GMP
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2023/11/30
Using dehydroabietic acid as the lead compound for structural modification, 25 dehydroabietic acid derivatives were synthesized. Among them, compound D1 not only showed the strongest relaxation effect...
Bio-based epoxy vitrimer for recyclable and carbon fiber reinforced materials: Synthesis and structure-property relationship
Vitrimer Epoxy-acid-anhydride system CFRMs Degradable Recycling
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2023/11/30
Recycling or degradation of epoxy resins is difficult because of their covalent cross-linking structures, which causes resource crisis, environmental pollution, and resource waste. To address this cha...
Synthesis of eugenol-modified epoxy resin and application on wood flame retardant coating
Wood Flame retardant Bio-based epoxy resin Low curing activation energy
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2023/11/30
In this paper, a novel epoxy flame retardant PPDEG-EP (P-E) was synthesized from eugenol by nucleophilic substitution reaction and Prilezhaev epoxidation. The chemical structure was identified by nucl...
Exploring the effects of bound rubber phase on the physical properties of nano-silica composites with a vitrimer-like bond exchangeable matrix
DYNAMIC COVALENT CHEMISTRY CROSS-LINK DENSITY MECHANICAL-PROPERTIES POLYMER NANOCOMPOSITES
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2023/11/30
We demonstrate the preparation and unique properties of composite vitrimer-like materials containing silica nanoparticles (SNPs). The matrix is composed of polyacrylate-based polymers crosslinked via ...
A Novel Polyvinyl Alcohol-Based Hydrogel with Ultra-Fast Self-Healing Ability and Excellent Stretchability Based on Multi Dynamic Covalent Bond Cross-Linking
dynamic covalent bonds hydrogels self-healing strain sensors
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2023/11/30
A novel self-healing poly(vinyl alcohol) (PVA)-based hydrogel is developed by cross-linking PVA chains through multi dynamic covalent bonds by use of a small cross-linker composed by 4-formylphenylbor...
Fast and Reversible Photoresponsive Self-Assembly Behavior of Rosin-Based Amphiphilic Polymers
rosin amphiphilic polymers photo-responsive self-assembly morpholog y evolution
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2023/11/30
Designing stimulus-responsive amphiphilic polymers with a fast photoresponsive self-assembly behavior remains a challenge. Two series of rosin-terminated and azobenzene-terminated amphiphilic polymers...
Fatigue of amorphous hydrogels with dynamic covalent bonds
Hydrogel Amorphous polymer network Anti-fatigue Dynamic covalent bond
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2023/11/30
Hydrogels composed of amorphous polymer networks are widely used as soft and stretchable components in diverse devices and machines. However, existing amorphous hydrogels are susceptible to fatigue fr...
Mechanical properties of carbon nanotubes/epoxy nanocomposites: Pre-curing, curing temperature, and cooling rate
Carbon nanotubes curing epoxy mechanical properties nanocomposites polymer nanocomposites
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2023/11/30
The effects of composite fabrication, such as pre-curing, curing temperature, and cooling rate, were studied. In this work, the pre-curing was defined as heat treatment of Multi-Walled Carbon Nanotube...
以油茶Camellia olelfera籽油为研究对象,活性炭为脱色原料,采用水浴恒温混合振荡法对油茶籽油色泽进行脱除,并探讨了脱色温度、时间及活性炭和油茶籽油配比对油茶籽油脱色程度和酸价、过氧化值的影响。结果表明,脱色时间是影响油茶籽油脱色程度、酸价和过氧化值的主要因素,最佳脱色时间为20 min;脱色温度是影响油茶籽油脱色、降低酸价和过氧化值效率的主要因素,最佳脱色温度为60℃;活性炭与植物油...
Layer-by-layer assembly of nanomultilayer structures: Reinforcement of expanded char reduced the toxicity and fire hazard of epoxy resins
Epoxy resin Fire safety Intumescent flame retardant Smoke suppression Flame retardancy
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2023/11/16
Epoxy resins (EP) have been widely applied in chemical engineering, composite materials, and aerospace. Nevertheless, the high fire hazard of flammable epoxy resins, which release considerable hazardo...
A facile strategy to construct multifunctional microencapsulated urea ammonium polyphosphate for epoxy resins towards satisfied fire safety, thermal stability and compatibility
epoxy resin fire safety mechanical properties microencapsulation urea ammonium polyphosphate
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2023/11/16
Enhancing the fire safety of epoxy resin (EP) concomitant with less mechanical performance degradation is still a challenge for traditional flame retardants. Hence, polypyrrole (PPy) was used as a fil...
Low-temperature 3D printing and curing process of continuous fiber-reinforced thermosetting polymer composites
3D printing CFRTPC curing behavior prediction low-temperature process model-free kinetics
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2023/11/16
The reported work has developed a methodology of printing and curing continuous fiber-reinforced thermosetting polymer composites (CFRTPCs) with excellent mechanical properties at low temperatures. Fi...
Developing Reprocessable shape memory thermosetting resins with high thermal resistance and strength through building a crosslinked network based on bismaleimide and epoxy resins
dynamic covalent bond heat resistance mechanical property reprocessability shape memory thermosetting resin
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2023/11/16
It is difficult to endow reprocessable shape memory thermosetting resins with outstanding heat resistance and high mechanical strength. Herein, a new kind of reprocessable shape memory thermosetting r...
Network Degradation Assessed by Evolved Gas Analysis-Mass Spectrometry Combined with Principal Component Analysis (EGA-MS-PCA): A Case of Thermo-Oxidized Epoxy/Amine Network
ULTRAVIOLET-IRRADIATION MECHANICAL-PROPERTIES BUTADIENE RUBBER EPOXY-RESINS TEMPERATURE PYROLYSIS COATINGS TRANSITION OXIDATION SCISSION
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2023/11/16
To study the degradation of thermosetting polymers, we apply a novel method to simultaneously study the chemical structural changes and network topology: evolved gas analysis-mass spectrometry combine...