Shape memory polyurethane-urea foams with improved toughness.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of applied polymer science"
DOI: 10.1002/app.47268
Abstract: Current vascular aneurysm treatments often require either highly invasive strategy to surgically occlude an aneurysm or endovascular occlusion via metal coils. While endovascular coils are safer, they have limited efficacy. Endovascular coils that are integrated… read more here.
Keywords: smp foams; memory polyurethane; shape memory; polyurethane urea ... See more keywords
Tunable softening and toughening of individualized cellulose nanofibers-polyurethane urea elastomer composites.
Sign Up to like & getrecommendations! Published in 2017 at "Carbohydrate polymers"
DOI: 10.1016/j.carbpol.2016.12.019
Abstract: A series of elastomeric nanocomposites with superior tensile strength and extensibility, simultaneously exhibiting softening, was prepared using in situ polymerization by homogeneously dispersing TEMPO-oxidized cellulose individualized nanofibers (TOCNs) in a polyurethane urea (PUU) matrix. The… read more here.
Keywords: softening toughening; individualized cellulose; cellulose nanofibers; toughening individualized ... See more keywords
Moisture-mediated self-healing kinetics and molecular dynamics in modified polyurethane urea polymers
Sign Up to like & getrecommendations! Published in 2018 at "Polymer"
DOI: 10.1016/j.polymer.2018.07.059
Abstract: Abstract Self-healing materials offer the ability to repair cracks within a polymeric material of molecular, micro- and macroscopic scale. The previously reported polyurethane urea (PUU) polymer with a high number of associative hydrogen bonding moieties… read more here.
Keywords: molecular dynamics; self; moisture mediated; self healing ... See more keywords
Frost-Resistant Polyurethane-Urea Materials Based on Oligoethers
Sign Up to like & getrecommendations! Published in 2018 at "Russian Journal of Applied Chemistry"
DOI: 10.1134/s1070427218090070
Abstract: Physicomechanical behavior of cross-linked segmented polyester urethane ureas with poly(tetramethylene oxide) segments of varied molecular mass, plasticized with di-(2-ethylhexyl) cebacate, was considered. Data on how the structure of flexible and rigid segments affects the physicomechanical… read more here.
Keywords: based oligoethers; materials based; urea materials; resistant polyurethane ... See more keywords
Polyurethane-urea-amide-based triblock copolymer contains functionalized polystyrene: Synthesis, characterization and solvent resistivity study
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Thermoplastic Composite Materials"
DOI: 10.1177/08927057211017171
Abstract: Synthesized polystyrene (PSt) with a molecular weight of 2100 g/mol, hexamethylene diisocyanate (HMDI), 6-hexylamino benzamide (6B), and N1-(6-aminohexyl)-N4-(6-benzoylaminohexyl)terephthalamide (6... read more here.
Keywords: amide based; copolymer contains; triblock copolymer; based triblock ... See more keywords
Blending In Situ Polyurethane-Urea with Different Kinds of Rubber: Performance and Compatibility Aspects
Sign Up to like & getrecommendations! Published in 2018 at "Materials"
DOI: 10.3390/ma11112175
Abstract: Specific physical and reactive compatibilization strategies are applied to enhance the interfacial adhesion and mechanical properties of heterogeneous polymer blends. Another pertinent challenge is the need of energy-intensive blending methods to blend high-tech polymers such… read more here.
Keywords: blending situ; microscopy; puu; rubber ... See more keywords
New Waterborne Polyurethane-Urea Synthesized with Ether-Carbonate Copolymer and Amino-Alcohol Chain Extenders with Tailored Pressure-Sensitive Adhesion Properties
Sign Up to like & getrecommendations! Published in 2020 at "Materials"
DOI: 10.3390/ma13030627
Abstract: New waterborne polyurethane-urea dispersions with adequate adhesion and cohesion properties have been synthesized by reacting isophorone diisocyanate, copolymer of ether and carbonate diol polyol and three amino-alcohols with different number of OH groups chain extenders… read more here.
Keywords: amino alcohol; polyurethane; alcohol chain; waterborne polyurethane ... See more keywords
Addition of Graphene Oxide in Different Stages of the Synthesis of Waterborne Polyurethane-Urea Adhesives and Its Influence on Their Structure, Thermal, Viscoelastic and Adhesion Properties
Sign Up to like & getrecommendations! Published in 2020 at "Materials"
DOI: 10.3390/ma13132899
Abstract: In this study, 0.04 wt % graphene oxide (GO) was added in different stages (before and after prepolymer formation, and during water addition) of the synthesis of waterborne polyurethane-urea dispersions (PUDs) prepared by using the… read more here.
Keywords: graphene oxide; synthesis waterborne; addition; different stages ... See more keywords
Design of a Waterborne Polyurethane–Urea Ink for Direct Ink Writing 3D Printing
Sign Up to like & getrecommendations! Published in 2021 at "Materials"
DOI: 10.3390/ma14123287
Abstract: In this work, polycaprolactone–polyethylene glycol (PCL–PEG) based waterborne polyurethane–urea (WBPUU) inks have been developed for an extrusion-based 3D printing technology. The WBPUU, synthesized from an optimized ratio of hydrophobic polycaprolactone diol and hydrophilic polyethylene glycol… read more here.
Keywords: ink; design waterborne; waterborne polyurethane; polyurethane urea ... See more keywords
Advances in Waterborne Polyurethane and Polyurethane-Urea Dispersions and Their Eco-friendly Derivatives: A Review
Sign Up to like & getrecommendations! Published in 2021 at "Polymers"
DOI: 10.3390/polym13030409
Abstract: Polyurethanes and polyurethane-ureas, particularly their water-based dispersions, have gained relevance as an extremely versatile area based on environmentally friendly approaches. The evolution of their synthesis methods, and the nature of the reactants (or compounds involved… read more here.
Keywords: urea dispersions; polyurethane; polyurethane polyurethane; waterborne polyurethane ... See more keywords
Effect of Cellulose Nanofibers’ Structure and Incorporation Route in Waterborne Polyurethane–Urea Based Nanocomposite Inks
Sign Up to like & getrecommendations! Published in 2022 at "Polymers"
DOI: 10.3390/polym14214516
Abstract: In order to continue the development of inks valid for cold extrusion 3D printing, waterborne, polyurethane–urea (WBPUU) based inks with cellulose nanofibers (CNF), as a rheological modulator, were prepared by two incorporation methods, ex situ… read more here.
Keywords: waterborne polyurethane; polyurethane urea; incorporation; cellulose nanofibers ... See more keywords