Influence of chemical structure of hard segments on physical properties of polyurethane elastomers: a review
Hard segments of polyurethanes (PUs) are generally formed from diisocyanate and diol.
Diol can be replaced with triol and thiol. These chemical structures of hard segments …
Diol can be replaced with triol and thiol. These chemical structures of hard segments …
The evolution of polyurethane heart valve replacements: How chemistry translates to the clinic
Current heart valve replacements (HVRs) fail to comprehensively capture the physiological
behavior of native heart valve tissues, allowing the burden of valvular heart disease to …
behavior of native heart valve tissues, allowing the burden of valvular heart disease to …
Synthesis and structure/properties characterizations of four polyurethane model hard segments
Four model polyurethane (PU) hard segments were synthesized by reaction of butanol with
four typical diisocyanates. The four diisocyanates were aromatic 4, 4′-diphenylmethane …
four typical diisocyanates. The four diisocyanates were aromatic 4, 4′-diphenylmethane …
Reexamination of the microphase separation in MDI and PTMG based polyurethane: Fast and continuous association/dissociation processes of hydrogen bonding
Microphase separation and hard segment packing in polyurethanes remain areas of active
research interest in order to optimize their performances. In this work, a commercial …
research interest in order to optimize their performances. In this work, a commercial …
A multi-scale investigation on effects of hydrogen bonding on micro-structure and macro-properties in a polyurea
T Li, C Zhang, Z **e, J Xu, BH Guo - Polymer, 2018 - Elsevier
Abstract Effects of hydrogen bonding on the micro-structure development and mechanical
properties of a bulk-polymerized Polyurea are systematically investigated from the …
properties of a bulk-polymerized Polyurea are systematically investigated from the …
A novel waterborne polyurethane with biodegradability and high flexibility for 3D printing
Abstract Three-dimensional (3D) printing provides a new approach of fabricating
implantable products because it permits a flexible manner to extrude complex and …
implantable products because it permits a flexible manner to extrude complex and …
Asynchronous fracture of hierarchical microstructures in hard domain of thermoplastic polyurethane elastomer: Effect of chain extender
Abstract Four chain extenders, 1, 3-propanediol (PDO), 2-methyl-1, 3-propanediol (MPO), 2,
2-dimethyl-1, 3-propanediol (NPG) and 2, 2, 4, 4-tetramethyl-1, 3-cyclobutanedio (CBDO) …
2-dimethyl-1, 3-propanediol (NPG) and 2, 2, 4, 4-tetramethyl-1, 3-cyclobutanedio (CBDO) …
Solvent-free and self-catalysis synthesis and properties of waterborne polyurethane
A carboxy modified long-chain diol (CMLCD) was synthesized for the first time through
esterification of pyromellitic dianhydride (PMDA) and polytetramethylene glycol 1000 …
esterification of pyromellitic dianhydride (PMDA) and polytetramethylene glycol 1000 …
[HTML][HTML] Waterborne polyurethane dispersions and thin films: Biodegradation and antimicrobial behaviors
SA Madbouly - Molecules, 2021 - mdpi.com
Biodegradable and antimicrobial waterborne polyurethane dispersions (PUDs) and their
casted solid films have recently emerged as important alternatives to their solvent-based …
casted solid films have recently emerged as important alternatives to their solvent-based …
Solving the dilemma between reprocessability and mechanical properties faced by recyclable bio-based polyurethane foam through confining imine bonds in the hard …
PH Wu, YQ Li, Y You, CJ Huang, HB **e… - Industrial Crops and …, 2024 - Elsevier
Introducing dynamic covalent bonds (DCBs) into polyurethane (PU) foams can solve the
problem of their poor recyclability. However, a dilemma arises between reprocessability and …
problem of their poor recyclability. However, a dilemma arises between reprocessability and …