Molecularly Engineered Unparalleled Strength and Supertoughness of Poly(urea‐urethane) with Shape Memory and Clusterization‐Triggered Emission
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202205763
Abstract: To address the challenge of realizing multifunctional polymers simultaneously exhibiting high strength and high toughness through molecular engineering, ultrastrong and supertough shape‐memory poly(urea‐urethane) (PUU) is fabricated by regulating: i) the reversible cross‐links composed of rigid… read more here.
Keywords: strength; urea urethane; shape memory; poly urea ... See more keywords
A Controlled‐Release Biofertilizer Using Composite of Poly (Urea–Formaldehyde), Date Seeds and Sulfate of Potash‐Magnesia (2MgSO4·K2SO4) as All‐Biodegradable With Antimicrobial Potentials
Sign Up to like & getrecommendations! Published in 2025 at "Biopolymers"
DOI: 10.1002/bip.70016
Abstract: Based on the combination of poly (urea‐formaldehyde) (UF), Sulfate of Potash‐Magnesia (Sul‐Po‐Mag) fertilizer (2MgSO4·K2SO4), and Date Kernel Seed (DS), a novel slow‐release fertilizer in the form of granules called UF/DS/Sul‐Po‐Mag composite was introduced. The IR,… read more here.
Keywords: potash magnesia; release; sulfate potash; urea formaldehyde ... See more keywords
Mechanically Strong and Tough Poly(urea-urethane) Thermosets Capable of Being Degraded under Mild Condition.
Sign Up to like & getrecommendations! Published in 2022 at "Macromolecular rapid communications"
DOI: 10.1002/marc.202200765
Abstract: The development of degradable polymeric materials such as degradable polyurethane or polyurea has been much highlighted for resource conservation and environmental protection. Herein, we demonstrate a facile strategy of constructing mechanically strong and tough poly(urea-urethane)… read more here.
Keywords: strong tough; urea urethane; degraded mild; tough poly ... See more keywords
Bioinspired Antiwear Poly(urea-imide) Composites: Influence of Tribology on Polymer Crystal Structure.
Sign Up to like & getrecommendations! Published in 2025 at "Small"
DOI: 10.1002/smll.202408249
Abstract: Polymer composite materials encounter considerable challenges in sustaining superior tribological properties at high rotational speeds. Inspired by the microstructure of dragonfly wings, a novel thermally stable and ambient pressure curing poly(urea-imide) resin (PURI) with excellent… read more here.
Keywords: tribology; friction; polymer; urea imide ... See more keywords
Self-healing nanocomposites comprised of poly(urea formaldehyde) nanocapsules in a thermosetting polyurea
Sign Up to like & getrecommendations! Published in 2020 at "European Polymer Journal"
DOI: 10.1016/j.eurpolymj.2020.109545
Abstract: Abstract In this study, poly(urea formaldehyde) (PUF) nanocapsules with epoxy cores were blended into a polyurea matrix, formulated as poly[(phenyl isocyanate)–co-formaldehyde] (PMDI) (f = 3.4), and a diamine curing agent (VERSALINK 650) to form nanocomposites. The nanocomposites… read more here.
Keywords: puf nanocapsules; urea formaldehyde; formaldehyde; poly urea ... See more keywords
Exploiting decarbonylation and dehydrogenation of formamides for the synthesis of ureas, polyureas, and poly(urea-urethanes)
Sign Up to like & getrecommendations! Published in 2024 at "Chemical Science"
DOI: 10.1039/d4sc03948c
Abstract: Urea derivatives, polyureas, and poly(urea-urethanes) are materials of great interest. However, their current methods of synthesis involve toxic feedstocks – isocyanate and phosgene gas. There is significant interest in developing alternative methodologies for their synthesis… read more here.
Keywords: polyureas poly; urea derivatives; urea urethanes; decarbonylation ... See more keywords