Articles tagged with Polymer Architecture
A team of researchers at UMass Amherst has developed a method to count the number of strength-enabling entanglements in glassy polymers, which can be used to create stronger, more cost-effective materials. By combining computer simulations with experimental processes, they found that not every entanglement contributes to the polymer's ...
A 13-year-long study finds that fiber-reinforced polymer (FRP) coatings can sustain concrete structures for extended periods. The study tested FRP and glass fiber reinforced polymer (GFRP) systems under various environmental conditions, revealing significant impact on bond behavior.
The study assesses how temperature influences droplet size in elastic matrices, providing insights into biological molecule arrangement and condensate formation. It also explores the role of phase separation and its effect on droplet growth.
Researchers at Harvard John A. Paulson School of Engineering and Applied Sciences have developed an elastomer that is both stiff and tough, resolving the long-standing conundrum in polymer science. The new material has high toughness, strength, and fatigue resistance, making it suitable for applications such as tissue regeneration, bio...
Mechanical engineering researchers at Michigan Technological University have created a 3D-printable nanocomposite polymeric ink using carbon nanotubes. The ink's properties, such as electrical conductivity and increased strength, make it suitable for various applications, including aerospace and electronics industries.
Researchers have measured the transverse electrical resistivity of a single carbon fiber using the van der Pauw method, revealing directional-dependent properties. This discovery paves the way for developing lightning strike protection technologies for aerospace and other industries.
Researchers at Duke University developed an antibiotic coating that can be applied to orthopedic implants before surgery, eliminating the risk of infection. The coating, made from two polymers and an antibiotic, prevents bacterial colonization and can be personalized for individual patients.
Researchers synthesized a new conjugated polymer using two chemical reactions, showing it outperforms traditional methods in organic and perovskite solar cells. The Stille reaction pathway yielded superior results with efficiencies of up to 15.1% in photovoltaic devices.
Researchers at KAUST have developed a novel polymer membrane that can precisely separate ions, opening up new possibilities for technologies like water purification, mineral extraction, and energy storage. The membranes' precise control over pore size and uniformity makes them ideal for applications such as removing ions from seawater ...
Researchers from Pusan University developed a super-stretchable, deformable, and durable material for 'super-flexible' alternating current electroluminescent devices. The material was successfully applied in devices that functioned with up to 1200% elongation, displaying stable luminescence over 1000 cycles.
Researchers employ terahertz-waves to detect differences in higher-order structures of polylactide (PLA) and other biomass-based plastics. This achievement suggests that terahertz-waves have potential to enable nondestructive analysis of plastic properties.
Scientists have developed novel gas sensors with improved detection sensitivity and durability by combining organic and inorganic materials. The hybrid sensors boast high durability and high sensitivity, making them suitable for portable gas sensing applications.
Researchers from University of Tsukuba and Osaka University developed a polymer-coated metal catalyst that accelerates CO2 conversion into formate, a useful carbon-based fuel. The PEG-coated Sn catalyst showed a 24 times higher formate production rate than conventional Sn plate electrodes.
Researchers at RUDN University designed a novel metal-containing compound with an unusual planar architecture, exhibiting spin glass behavior. This unexpected structure is promising for creating high-capacity memory storage devices.
Researchers at Rice University have created a coating made of soft polymer that can help keep knotty ceramic structures from shattering. The coating was tested on complex lattices called schwarzites, which were found to be up to 4.5 times more resistant to catastrophic fractures.
Researchers have discovered polymers in CV3 meteorites, providing clues to the early solar system's space chemistry. The polymers, composed of glycine and other elements, formed organized structures with a high deuterium-to-hydrogen-isotope ratio, confirming their extraterrestrial origin.
Researchers at Cornell University developed a new method to study conjugated polymers, allowing them to measure individual molecules' mechanical and kinetic properties. This breakthrough could enable the creation of more flexible and robust soft electronic materials.
Researchers at the University of Virginia School of Engineering have created a new class of soft materials with exceptional stretchability and elasticity, mimicking the properties of vocal cords. The elastomers can be 3D printed for use in healthcare and exhibit promising potential for future treatments.
Researchers at UMass Amherst have developed a platform for interactive soft materials that can respond to external stimuli in predictable ways. By mimicking the natural oscillators found in animals, the team created a diverse array of oscillators that can move in unison and adapt to changes in light and temperature.
Researchers have proposed a new microscopic theory of polymer gel collapse, shedding light on the dramatic reduction in volume of zwitterionic hydrogels when cooled. The theory explains the role of electrostatic interactions between polymer units in leading to gel collapse, and identifies key parameters that influence this transition.
Researchers developed PTVT-T, a low-cost polymer with high photovoltaic performance, revitalizing classical conjugated polymers for efficient OSCs. The study achieved a remarkable 16.2% efficiency and demonstrated the potential of PTVT-T to match with new emerging acceptor materials.
Researchers at University of Illinois developed a new mechanophore molecule that changes color when applied with stress, enabling rapid detection of material failure. This breakthrough could enable better monitoring and response to overstressed materials in various fields.
Scientists from the Kleij group have created a new method for preparing biobased polyesters by transforming a terpene, β-elemene. The resulting polymer can be tailored through post-modification reactions to achieve desired properties.
Scientists have created a novel 3D-printable material, bottlebrush polymers, which exhibits unusual softness and elasticity resembling human tissue. This breakthrough enables the creation of high-sensitivity electronic devices and biomimetic tissue with improved stability.
Researchers at Queensland University of Technology and Ghent University have developed a green light-stabilised 3D polymer structure that folds itself when exposed to light and unfolds when left in the dark. This process consumes light as fuel, mimicking the way proteins function in living organisms.
Researchers from TUM have visualized the changes in bottle-brush polymers using neutron radiation, enabling a deeper understanding of their behavior at different temperatures. This knowledge can be used to optimize their chemical structure for practical applications.
Scientists have discovered a way to control the pitch of biopolymers, leading to the creation of structural colors in liquid marbles. The colors change in response to environmental factors such as heat, pressure, or chemicals, making this technology promising for bio-based sensors and soft photonic elements.
Researchers develop sensitive optical fiber sensors using D-A based aggregation-induced emission (AIE) molecular rotors and one-dimensional polymer fibers. The sensors respond to ambient humidity rapidly and reversibly with observable chromatic fluorescence change.
Scientists at Kyushu University created composite membranes with ultrathin layers that selectively separate CO2 from nitrogen, thanks to the molecularly thin interface formed between polymers. The discovery opens a new area for designing more efficient membranes for industrial CO2 capture applications.
Researchers at ETH Zurich have developed a method to control the dispersity of polymer materials, allowing for the production of polymers with specific properties. This is achieved by using two catalysts with different effects, enabling chemists to adjust the dispersity precisely and produce uniform or highly dispersed polymers.
Researchers have discovered that polymers formed from the union of circular and linear components display slower molecular dynamics due to the 'harpooning' effect between heads and tails. This leads to a more viscous compound with potential applications in materials engineering and pharmaceuticals.
Researchers at Chiba University created a new type of helicoidal supramolecular polymer that changes its chemical structure in response to temperature. The polymer was formed by mixing two different monomers and exhibits a unique thermal response, collapsing rapidly at 45-50°C.
Researchers create a new approach for efficiently fusing different polymers together, enabling the precise tuning of material properties by selecting appropriate base polymers and mixing ratios. The method involves using dynamic covalent bonds and TEMPS radicals to fuse cross-linked polymers (CPLs) together.
The team created a cucurbituril-based host-guest complex that polymerized into a linear chain and then associated into a hollow microtubule via van der Waals interactions. This breakthrough mimics the formation mechanism of natural microtubules, essential for cellular functions.
Researchers created a polymer thermal regulator that can switch between conducting and insulating states, allowing for precise control of heat flow. This breakthrough enables potential applications in fields such as refrigeration, computing, and waste heat scavenging.
Associate Professor Kohsaka and his team created a new polyester using DMDO, which reacts with chemicals and decomposes. The study demonstrated the feasibility of this plastic as a possible solution to the plastic waste problem.
Researchers at MIT have developed a new synthesis method to create polymers that can break down more readily in the body and environment. By adding a novel type of building block, they were able to create polymers with easier degradability under biologically relevant conditions.
The study introduces two novel initiating systems consisting of palladium, naphthoquinone, and borate, exhibiting unique activities in C1 polymerization. The new systems afford high molecular weight poly(alkoxycarbonylmethylene)s with improved yields and stereoregularity.
A FSU research team has developed methods to manipulate polymers, changing their fundamental structure. This breakthrough enables potential applications in cargo delivery, recyclable materials, shape-shifting soft robots and antimicrobials.
Researchers at TU Dresden and Ulm University developed a new synthetic route to create crystalline 2D polymers with defined structures. The 2D polymers have promising properties for electronic components and systems, including superior charge transport and chemiresistivity.
Researchers at Ehime University developed a new synthetic polymer with great potential for use as an environmentally friendly material. The polymer can be degraded into low molecular weight compounds under mild acidic conditions, making it useful for drug encapsulation and recyclable materials.
The study introduced macrocyclic rigid structures that improve polymer properties, allowing for the creation of hybrids with biopolymers and self-assembling capabilities. These hybrids were applied in prototypes of chemical and biochemical sensors, offering good prospects for creating new smart drugs and systems.
The Collaborative Research Centre SFB/Transregio 102 at MLU is expanding its scope to investigate hybrid polymers, a combination of synthetic and protein-based materials. The researchers aim to gain a better understanding of these novel molecules and their potential applications in medicine and materials research.
Scientists are developing ultra-high precision synthetic polymers with precisely controlled chain lengths and monomer sequences. These information-containing macromolecules can be deployed for data storage, anti-counterfeiting and traceability technologies.
Researchers at the University of Illinois gained control over soft-molecule synthesis, enabling them to probe how shape, size, and composition influence function in soft materials. This breakthrough could lead to advances in virology, drug delivery development, and new material creation.
The new solar cells, developed using a chlorinated polymer donor, achieved a power conversion efficiency (PCE) of 9.03% and enhanced build-in potential and morphology. This approach is an effective way to boost the PCE of all-polymer solar cells.
Researchers from MIPT and Lomonosov Moscow State University developed an experimental setup combining thermal and X-ray analysis to study semicrystalline polymers. They found that a critical heating rate can prevent structural changes, revealing complex thermodynamic behavior behind the material's melting points.
Researchers developed a novel thermoplastic anchoring polymer layer structure to suppress movement of conductive particles, achieving 90% capture rate. The new anisotropic conductive film shows excellent electrical conductivity, high reliability, and low cost.
Researchers develop silicone polymer chain that can self-assemble into a 3D periodic structure using triptycene molecules. The team's findings are promising and may provide a powerful tool for organizing polymers and reinforcing their structural and physical properties.
Researchers at Uppsala University developed a new computer algorithm that simulates polymer dynamics hundreds of times faster than traditional methods. This breakthrough has the potential to revolutionize fields such as inkjet printing and materials science.
Researchers have synthesized a phosphonium polymer that exhibits extraordinary antibacterial activity despite lacking hydrophobic alkyl chains. The polymer's hydrophilic nature and balanced display of positive charges played a crucial role in its effectiveness.
Researchers create designer polymers with precise properties by controlling the order and number of subunits. They achieve this through a selective approach, allowing for on-demand control over sequence, structure, and architecture.
Conjugated polymers have been studied for their electrical conductivity, but determining their structure was challenging. A new technique developed by the University of Warwick has produced high-resolution images of their structure, revealing gaps and defects in an ABBA pattern.
The study introduces a method for controlling polymer structure and function by utilizing electrostatic charge, allowing for the creation of smart materials with diverse applications. By tuning the sequence of charges along polymer chains, researchers can engineer desired properties and expand the diversity of polymers used.
Researchers developed a way to control polymer molecule shape, leading to non-spherical nanoparticles that can encapsulate drugs. These natural-shaped plastic nanoparticles have shown preliminary evidence of entering tumor cells more easily than spherical ones.
Researchers discovered two primary forces at play: hydrogen bonds and phase segregation, which strengthen or weaken each other. The study improves understanding of polymer structure formation, enhancing knowledge about self-healing materials and protein structures.
Japanese researchers investigated the effects of charged group spacer length on hydration state in polymer brushes, revealing a clearer picture of the relationship between structure and properties. The results show that hydration states are independent of chain spacer length, with water uptake not affected by this parameter.
UW researchers design polymers that can effectively communicate across biological and electronic realms by creating rigid and non-rigid regions with varying conductance properties. These findings may lead to new biosensors, flexible bioelectronic implants, and improved batteries.
Researchers at ETH Zurich have developed a construction principle for controlling the deformation of 4D printed objects, which can support weight and change shape in response to external stimuli. The technology has potential applications in aerospace, medical devices, and more.
Scientists at Georgia Institute of Technology and Peking University have developed a new technique for creating self-folding three-dimensional origami structures using photocurable liquid polymers. The process involves projecting a grayscale pattern onto the polymer, causing it to form a solid film through crosslinking reactions.